Skocz do pozycji: 1.

Tytuł:

Kongsfjorden and Hornsund hydrography - comparative study based on a multiyear survey in fjords of West Spitsbergen

Autorzy:

Prominska, A.
Cisek, M.
Walczowski, W.

Powiązania:

https://bibliotekanauki.pl/articles/48487.pdf

Data publikacji:

2017

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

Kongsfjorden
Hornsund
hydrography
Atlantic water
transport
water column
water mass
water temperature
water salinity

Opis:

A recent study has shown increased warming in the fjords of west Spitsbergen. Their location is critical, as they are situated along the main northward pathway of Atlantic Water (AW) which is a great source of heat to the Arctic Ocean and the fjords. In the light of ongoing warming, we aim to discuss differences between the fjords under northward transformation of oceanic waters. We compared summer hydrographic conditions in two fjords located in two opposite ends of west Spistbergen: Hornsund in the south and Kongsfjorden in the north. The study is based on high resolution CTD measurements collected during Arctic cruises between 2001 and 2015. The emphasis was put not only on differences in water temperature, salinity and water masses but also the freshwater content (FWC), AW transport and heat delivery to the fjords. In general, the water in Kongsfjorden is on average 18C warmer and its salinity is higher by 0.5 compared to Hornsund. It is also characterized by two times greater transport of AW and heat delivery to the fjord. On the other hand, Hornsund reveals two times higher FWC. Both fjords undergo a gradual warming due to an increased presence of Atlantic origin waters. The ongoing warming is accompanied by an increase in variability of temperature and salinity dependent on the domination of the Sørkapp Current (SC) or the West Spitsbergen Current (WSC) on the West Spitsbergen Shelf (WSS). Nonetheless, Hornsund remains more Arctic-type fjord compared to Kongsfjorden, due to stronger blocking by SC.

Źródło:

Oceanologia; 2017, 59, 4
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 2.

Tytuł:

Impact of climate change on the Curonian Lagoon water balance components, salinity and water temperature in the 21st century

Autorzy:

Jakimavicius, D.
Kriauciuniene, J.
Sarauskiene, D.

Powiązania:

https://bibliotekanauki.pl/articles/47688.pdf

Data publikacji:

2018

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

climate change
Curonian Lagoon
shallow water
water balance
water temperature
water salinity
coastal environment
meteorological parameter

Źródło:

Oceanologia; 2018, 60, 3
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 3.

Tytuł:

On Great Lagoon (Szczecin Lagoon) water salinity - once again
O zasoleniu wody w Wielkim Zalewie Szczecińskim raz jeszcze

Autorzy:

Poleszczuk, G.
Niedzwiecki, E.
Wolnomiejski, N.
Bucior, A.

Powiązania:

https://bibliotekanauki.pl/articles/85121.pdf

Data publikacji:

2005

Wydawca:

Akademia Pomorska w Słupsku

Tematy:

Szczecin Lagoon
water salinity
fresh water
ionic composition
measurement station
water sample collection
bottom water
salinity level
surface water
salinity degree
chloride concentration
marine-inland water
mineralization

Opis:

Between May and October of 2003, mineral composition of surface (0.5 m deep) and bottom (5.0 meters) waters, at measurement stations in north-western and south-eastern parts of Great Lagoon (Szczecin Lagoon), have been studied. Total concentrations of ionic macrocomponents: Na+, K+, Ca2+, Mg2+, Cl-, HCO3 - , SO4 2- have been determined. Differentiation of ionic composition and changing level of concentrations of ionic macrocomponents in waters, depending on location of measurement station, depth of water sample collection and time of examination, have been proved. Bottom waters in south-eastern part of Great Lagoon had highest salinity level, whereas surface waters in the same location had lowest degree of salinity. Taking into consideration relatively small number of measurements, authors of present paper regard outlined investigations as diagnostic and obtained conclusions as preliminary ones. Towards substantial variability in ionic composition and magnitudes of concentrations, it is practically impossible to forecast and define values of concentrations of individual ionic components and general salinity degrees, basing on chlorides concentrations, what was often pursued, until now.
W roku 2003 w okresie od maja do października oznaczano stężenia ogólne makroskładników jonowych (Na+, K+, Ca2+, Mg2+, Cl-, SO4 2-, HCO3 - ) i na podstawie tych oznaczę obliczano przybliżone wartości zasolenia wód Wielkiego Zalewu (Zalew Szczeciński). Próby wody do badań pobierano w miejscach stacji pomiarowych zlokalizowanych w północnozachodniej (stacja nr 1) i w południowo-wschodniej (stacja nr 2) czesciach Zalewu. Wodę czerpano z warstwy powierzchniowej (z głębokości ok. 0,5 m) i naddennej (z głębokości ok. 5,0 m). Próby wody do badań pobierano z częstotliwością raz w miesiącu. Ze względu na niedużą liczbę pomiarów, badania te traktowano jako rozpoznawcze, zaś ich wyniki – jako ustalenia wstępne. Badania potwierdziły znany wcześniej fakt znacznego zróżnicowania składu jonowego i stężenia substancji mineralnych w wodach Wielkiego Zalewu w zależności od miejsca poboru prób i głębokości, z jakiej próby pobierano. Wody naddenne były wyraźnie bardziej zasolone od wód powierzchniowych i to na obu ww. stacjach, przy czym – co było dość zaskakujące – bardziej zasolone były wody naddenne w południowowschodniej części Zalewu. Jeżeli chodzi o wody powierzchniowe, to – jak było też wiadome z wcześniejszych badań – bardziej zasolone były wody w północnej części Zalewu. Z równań regresji liniowej, ujmujących zależności pomiędzy wartościami stężeń poszczególnych składników mineralnych a stężeniami jonów chlorkowych, a także z równań ujmujących zależności pomiędzy łącznymi masami makroskładników jonowych zawartych w 1 dm3 wód (oznaczanymi w tekście pracy jako ż ion m ) – także ze stężenia jonów chlorkowych, w wodach na obu stacjach i w obu badanych warstwach wynika, że istotne statystycznie korelacje uzyskano jedynie dla stężeń Na+ i K+ oraz Emion – przy czym wartości stałej i współczynnika w równaniu regresji liniowej – dla każdej z 4 kategorii wód (2 stacje × 2 warstwy wody) – były wyraźnie różne. Związane to było z zachodzeniem w ekosystemie Zalewu (wzdłuż drogi spływu wód w dół estuarium) przemian prowadzących do zmiany składu chemicznego wód. Ustalenia te wskazują, że wyniki obliczeń składu jonowego wód i zasolenia wykonywane na podstawie ogólnych (uśrednionych) dla całego Wielkiego Zalewu równań korelacyjnych ujmujących zależność pomiędzy stężeniami wybranych składników makrojonowych wód oraz ich ogólnego zasolenia od stężenia chlorków mogą prowadzić do otrzymania wyników znacznie różniących się od wartości rzeczywistych. W tej sytuacji jedynym i najpewniejszym sposobem na ustalenie składu jonowego i wartości stężeń wybranych makroskładników jonowych oraz zasolenia ogólnego wód jest wykonanie odpowiednich oznaczeń stężeń wszystkich składników makrojonowych wód Wielkiego Zalewu.

Źródło:

Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline; 2005, 09
1643-0115

Pojawia się w:

Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:

Influence of nano-silica and humic acid on physiological characteristics of Bermuda grass (Cynodon dactylon L.) under salinity stress

Autorzy:

Sharifiasl, R.
Kafi, M.
Saidi, M.
Kalatejari, S.

Powiązania:

https://bibliotekanauki.pl/articles/12675903.pdf

Data publikacji:

2019

Wydawca:

Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie

Tematy:

Iran
Bermuda grass
Cynodon dactylon
wild plant
water salinity
salinity condition
salinity stress
nanosilica
humic acid
physiological characteristics
chlorophyll
proline

Opis:

This research was conducted to evaluate the effects of water salinity and nano-silica (NS) and humic acid (HA) on Bermuda grass. The study was carried out under greenhouse and exterior space conditions in a completely randomized design with factorial arrangements. Treatments included 4 water salinity levels (0, 5, 7 and 9 dS/m) and 4 level of NS (0, 1, 2 and 3 mm/l) as well as 4 level of HA (0, 50, 100 and 150 mg/l). Results indicated a decrease in chlorophyll content, and increase in proline, malondialdehyde (MDA), catalase (CAT), superoxide dismutase (SOD) and electrolyte leakage (EL) with increasing levels of salinity. The chlorophyll content in greenhouse and exterior space also increased with increasing levels of NS and HA, while proline in two environments, with increasing levels of NS and HA decreased. EL with increasing levels of NS fluctuated, but with increasing levels of HA, it decreased in two environments. With increasing levels of NS, CAT in both environments was eventually decreased after the oscillation, but there was no particular trend in HA levels. With increasing levels of NS and HA, MDA in the greenhouse decreased and in the exterior space – it increased. Finally, by increasing levels of NS and HA, SOD did not show any change in the greenhouse condition, but in the exterior space, the SOD was decreased.

Źródło:

Acta Scientiarum Polonorum. Hortorum Cultus; 2019, 18, 4; 203-212
1644-0692

Pojawia się w:

Acta Scientiarum Polonorum. Hortorum Cultus

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:

Impact of the Salinity Gradient on the Mollusc Fauna in Flooded Mine Subsidences (Karvina, Czech Republic)
Wpływ zróżnicowania zasolenia wód zbiorników w nieckach osiadania na faunę mięczaków (Karwina, Czechy)

Autorzy:

Kašovská, K.
Pierzchała, Ł.
Sierka, E.
Stalmachová, B.

Powiązania:

https://bibliotekanauki.pl/articles/204610.pdf

Data publikacji:

2014

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

molluscs
water salinity
mine subsidence
Karvina
Czech Republic
mięczaki
zasolenie wody
niecka osiadania
Czechy

Opis:

This paper presents the impact of salinisation on the aquatic mollusc fauna in flooded mine subsidences in the Karvina region (Czech Republic). The results of the previous research on salinity in flooded mine subsidences show that some of them contain a high content of dissolved inorganic substances (above 1000 mgl^-1). These substances can affect the vegetation and animals occurring in the water and the surrounding area. The phylum of Mollusca was selected as a model group for the fieldwork as it includes species with the proven bioindication potential. The occurrence of aquatic mollusc species was studied at 10 sites. The sites were selected based on the content of dissolved substances (the salinity gradient from <500 to >1000 mgl^-1).. A total of 12 aquatic mollusc species were found, including one species identified as a potential bioindicator of the negative effect of salinisation on aquatic biota. The analysis showed statistically significant positive correlations between the content of dissolved inorganic substances and the presence of alien species Potamopyrgus antipodarum (J.E. Gray, 1843). The gradient of salinity significantly affects the species composition of the mollusc fauna in flooded mine subsidences and may affect the biodiversity of this group.
W artykule przedstawiono reakcję wodnych gatunków mięczaków (Mollusca), jako grupy modelowej, na zasolenie wód zbiorników powstałych w nieckach osiadania rejonu Karwiny (Czechy). Analizę występowania wodnych gatunków mięczaków przeprowadzono w obrębie 10 obiektów. Wody badanych zbiorników tworzyły gradient zasolenia w zakresie od <500 do >1000 mg·l^-1. W ich obrębie stwierdzono występowanie łącznie 12 gatunków wodnych mięczaków, w tym jednego gatunku, który uznano za potencjalny indykator znacznego zasolenia zbiorników. Wyniki analizy statystycznej wykazały istotną pozytywną zależność między zawartością rozpuszczonych substancji nieorganicznych i występowaniem gatunku Potamopyrgus antipodarum (J.E. Gray, 1843). Wykazano, że gradient zasolenia w istotny sposób wpływa na skład gatunkowy fauny mięczaków, kształtujących się w zbiornikach w nieckach osiadania oraz mieć wpływa na bioróżnorodność tej grupy.

Źródło:

Archives of Environmental Protection; 2014, 40, 1; 87-99
2083-4772
2083-4810

Pojawia się w:

Archives of Environmental Protection

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:

Efektywność procesu intensyfikacji wydobycia ropy naftowej z zastosowaniem metody nawadniania oryginalną wodą złożową oraz wodami o niskim stopniu zasolenia
Efficiency of enhanced oil recovery by original and low salinity waterflooding treatment

Autorzy:

Majkrzak, Marcin

Powiązania:

https://bibliotekanauki.pl/articles/2143602.pdf

Data publikacji:

2021

Wydawca:

Instytut Nafty i Gazu - Państwowy Instytut Badawczy

Tematy:

złoże ropy naftowej
współczynnik sczerpania
nawadnianie
zasolenie wody
oil field
recovery factor
waterflooding
water salinity

Opis:

W artykule przedstawiono wyniki badań dotyczących możliwości zwiększenia współczynnika sczerpania zasobów złóż ropy naftowej poprzez wdrożenie procesu nawadniania jako jednej z głównych metod wspomagania wydobycia. Na podstawie interpretacji danych z przeprowadzonych testów przepływowych podjęto próbę dokonania charakterystyki przebiegu procesu wypierania ropy naftowej z wykorzystaniem zarówno oryginalnej wody złożowej, jak też wód o odmiennym (niższym w stosunku do solanki złożowej) stopniu zasolenia. Podjęto również próbę powiązania wyznaczonego typu zwilżalności matrycy skalnej ze wzrostem współczynnika sczerpania w następstwie procesu nawadniania. W celu realizacji pracy w badaniach wykorzystano oryginalne płyny złożowe, które scharakteryzowano pod względem podstawowych parametrów reologicznych. Materiał rdzeniowy stanowiło 16 próbek piaskowców kambryjskich. Wstępny zakres prac dotyczył charakterystyki petrofizycznej rdzeni, która objęła określenie ich podstawowych parametrów, takich jak przepuszczalność absolutna dla gazu, porowatość i objętość porowa. Na podstawie wyznaczonych wartości przepuszczalności dostępne próbki pogrupowano, co dało możliwość przeprowadzenia w kolejnych etapach projektu dwóch odmiennych zestawów badań dla par o maksymalnie zbliżonych parametrach filtracyjnych. Dalsze prace obejmowały wykonanie analiz przepuszczalności względnych oraz wyznaczenie wartości współczynnika mobilności dla układu ropa naftowa–woda złożowa w celu określenia typu zwilżalności matrycy skalnej i potencjalnej efektywności procesu wypierania ropy naftowej. Głównym elementem przeprowadzonych badań była symulacja procesu nawadniania, realizowana w dwóch częściach: pierwszej – z wykorzystaniem oryginalnej wody złożowej (odpowiadającej wtórnym metodom eksploatacji) oraz drugiej – przy użyciu wód o niskim stopniu zasolenia (trzecie metody eksploatacji) w dwóch wariantach poziomu mineralizacji. Na podstawie uzyskanych danych objętości wypartej ropy naftowej w następstwie procesu nawadniania, dla każdego medium wypierającego skonstruowano krzywe zmian współczynnika sczerpania, które zestawiono z wyznaczonym typem zwilżalności matrycy skalnej.
The article presents the results of research on the possibility of increasing the recovery factor of oil fields by implementing the waterflooding treatment as one of the most common enhanced oil recovery method. Based on the interpretation of data from the core flow tests, an attempt was made to characterize the displacement process using original reservoir brine and waters with lower salinity level. Additionally, the relation between the type of wettability of the rock and recovery factor was investigated. Original reservoir fluids that were characterized in terms of their basic rheological parameters were used for research purposes. The rock material consisted of 16 samples of Cambrian sandstones. The initial scope of work concerned the petrophysical characteristics of the cores, including the determination of their basic parameters, such as absolute gas permeability, porosity and pore volume. Based on the determined values of permeability, the available samples were grouped which made it possible to perform test sets for pairs with the most similar filtration parameters in the next stages of the research. Further work included the performance of relative permeability analyses and the determination of the value of the mobility factor for the oil – reservoir water system in order to determine the type of wettability of the rock and the potential efficiency of the oil displacement process. The main element of the research was the simulation of the waterflooding process carried out in two parts – the first with the use of the original reservoir water (corresponding to the secondary recovery methods) and the second with the use of low-salinity waters (the third recovery methods) in two variants of the mineralization level. Based on the obtained data of the displaced oil, for each of the displacement medium recovery factor curve were constructed and compared with the determined type of wettability of the rock.

Źródło:

Nafta-Gaz; 2021, 77, 8; 541-552
0867-8871

Pojawia się w:

Nafta-Gaz

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:

First report of endosymbionts in Dreissena polymorpha from the brackish Curonian Lagoon, SE Baltic Sea

Autorzy:

Chuseve, R.
Mastitski, S.E.
Zaiko, A.

Powiązania:

https://bibliotekanauki.pl/articles/48408.pdf

Data publikacji:

2012

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

Dreissena polymorpha
zebra mussel
Conchophthirus acuminatus
parasitic ciliate
Ophryoglena
brackish water
endosymbiont
Curonian Lagoon
Baltic Sea
water salinity
water temperature

Źródło:

Oceanologia; 2012, 54, 4
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:

Identification of marine intrusion in the plain of Collo, northeastern Algeria
Identyfikacja intruzji morskiej na równinę Collo w północnowschodniej Algierii

Autorzy:

Saaidia, B.
Mahia, M.
Chaab, S.

Powiązania:

https://bibliotekanauki.pl/articles/292654.pdf

Data publikacji:

2017

Wydawca:

Instytut Technologiczno-Przyrodniczy

Tematy:

Algeria
coastal aquifer
Collo
marine intrusion
water salinity
Algieria
intruzja morska
przybrzeżny poziom wodonośny
zasolenie wody

Opis:

The population increase, urbanization and intensification of agriculture and demands for water supply in the coastal plain of Collo led to excessive pumping of the unconfined aquifer with limited dimensions. This study aimed to characterize the effect of the overexploitation of the groundwater from the only unconfined aquifer in the region, what resulted in the inversion of the groundwater flow and the rise the possible seawater pollution that is shown in the water table map. The causes and effects of the saltwater intrusion were discussed. The interpretation of the electrical conductivity measurements, chloride and sodium maps have shown clearly the areas where values were the highest with tighter curves towards the sea, the wadis Guebli and Cherka. These values distribution indicated a marine source of salinity in wells and boreholes close to the sea and wadis.
Rosnąca liczba ludności, urbanizacja i intensyfikacja rolnictwa spowodowały większe zapotrzebowanie na dostawy wody na przybrzeżnej równinie Collo i doprowadziły do nadmiernego pompowania wody z warstwy wodonośnej o swobodnym zwierciadle i ograniczonych rozmiarach. Celem badań było scharakteryzowanie skutków nadmiernej eksploatacji wód gruntowych z jedynego w regionie poziomu wodonośnego o swobodnym zwierciadle. Wynikiem eksploatacji była inwersja przepływu wód gruntowych i zwiększone prawdopodobieństwo ich zanieczyszczenia przez wodę morską, co przedstawiono na mapie poziomów wód. Przedyskutowano przyczyny i skutki intruzji wód słonych. Interpretacja pomiarów przewodności elektrycznej i mapy rozmieszczenia jonów chlorkowych i sodowych ujawniły obszary o wartościach tych parametrów rosnących w kierunku morza i uedów Guebli i Cherka. Rozmieszczenie wartości stężenia badanych składników wskazuje na morskie źródło zasolenia studni w pobliżu morza i obu rzek.

Źródło:

Journal of Water and Land Development; 2017, 35; 211-219
1429-7426
2083-4535

Pojawia się w:

Journal of Water and Land Development

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:

Sedimentation from suspension and sediment accumulation rate in the River Vistula prodelta, Gulf of Gdansk (Baltic Sea)

Autorzy:

Damrat, M.
Zaborska, A.
Zajaczkowski, M.

Powiązania:

https://bibliotekanauki.pl/articles/48809.pdf

Data publikacji:

2013

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

sedimentation
suspension
sediment accumulation
redeposition
Vistula River
river discharge
Gdansk Gulf
Baltic Sea
water salinity
turbidity
temperature

Źródło:

Oceanologia; 2013, 55, 4
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:

Jakość wody jako jeden z czynników determinujących właściwości mas formierskich z bentonitem
Water Quality as One of the Factors Determining the Properties of Bentonite Moulding Sands in Iron Foundry

Autorzy:

Harabasz, M.
Holtzer, M.

Powiązania:

https://bibliotekanauki.pl/articles/380947.pdf

Data publikacji:

2013

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

jakość wody
masa formierska
masa bentonitowa
zasolenie wody
przewodnictwo elektrolityczne
jakość odlewu
water quality
moulding sand
water salinity
electrolytic conductivity
casting quality

Opis:

W artykule omówiono problem jakości wody, która wykorzystywana jest w cyklu produkcyjnym odlewni stosującej masy z bentonitem. Praktycznie jakość wody stosowanej do odświeżenia masy z bentonitem, jak i jej chłodzenia nie jest przedmiotem rozważań w krajowych odlewniach. Zagadnienie to dotyczy wpływu stopnia zasolenia wody na właściwości wytrzymałościowe mas z bentonitem, a w konsekwencji na jakość gotowych odlewów. W kolejnych cyklach obiegu masy następuje kumulacja soli w masie i pogorszenie właściwości wytrzymałościowych, szczególnie wytrzymałości na rozciąganie w strefie przewilżonej. Parametrem charakteryzującym stopień zasolenia wody jest przewodnictwo elektrolityczne. W artykule przedstawiono sposób zmniejszenia zasolenia wody miejskiej metodą odwróconej osmozy oraz uzyskane efekty w zakresie zmniejszenia zużycia mieszanki bentonitowej. Prawdopodobnie głównymi jonami powodującymi wzrost przewodnictwa są jony Cl^-.
The article discusses the problem of water quality, which is used in the foundry used green sand in production cycle. The issue involves the problem of the salinity of water, which translates mainly to reduce the strength properties of the green sand. This article presents a method of reducing the salinity of city water and the results of its systematic research. It also indicated the results of green sand, done with the addition of city water with a high and a low conductivity. Analyses show that water is a determining factor in the properties of the sand mould, so the focus should be on maintaining its high quality.

Źródło:

Archives of Foundry Engineering; 2013, 13, 3 spec.; 45-50
1897-3310
2299-2944

Pojawia się w:

Archives of Foundry Engineering

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 11.

Tytuł:

Short-term changes in specific conductivity in Polish coastal lakes (Baltic Sea basin)

Autorzy:

Cieslinski, R.

Powiązania:

https://bibliotekanauki.pl/articles/48996.pdf

Data publikacji:

2013

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

short-term change
specific conductivity
fluctuation
coastal lake
sea water intrusion
Polish coast
Baltic coast
Lake Gardno
Lake Lebsko
water salinity
wind speed
chemical composition

Źródło:

Oceanologia; 2013, 55, 3
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 12.

Tytuł:

Wpływ restrukturyzacji górnictwa węgla kamiennego na zasolenie wód powierzchniowych zlewni górnej Wisły
Impact of hard coal mining restructuring on surface water salinity in the Upper Vistula catchment area

Autorzy:

Maksymiak-Lach, H.
Lach, R.
Caruk, M.

Powiązania:

https://bibliotekanauki.pl/articles/340987.pdf

Data publikacji:

2006

Wydawca:

Główny Instytut Górnictwa

Tematy:

restrukturyzacja górnictwa
wody powierzchniowe
zasolenie wód
zlewnia górnej Wisły
woda kopalniana
ochrona hydrotechniczna
coal mining restructuring
surface water
water salinity
Upper Vistula catchment area
mine waters
hydrotechnical protection

Opis:

W artykule omówiono wpływ restrukturyzacji górnictwa węgla kamiennego na jakość wód powierzchniowych w zlewni Górnej Wisły, wynikających ze zmian w odprowadzaniu słonych wód z odwadniania kopalń. Na podstawie wyników monitoringu przeanalizowano zmiany jakości wód Wisły na 40 km odcinku od ppk. poniżej zbiornika Goczałkowice - przed zrzutem wód kopalnianych - do ppk. Pustynia-Oświęcim - po zrzucie wód kopalnianych z zakładów wydobywczych w zlewni Wisły (bez ZG "Janina"). Przeanalizowano również zmiany jakości wód w dopływach Wisły: Gostyni, Potoku Goławieckim, Przemszy. Stwierdzono, że po roku 1994 nastąpiło zmniejszenie zasolenia wód w Gostyni i Przemszy na odcinku ujściowym do Wisły oraz w Wiśle w przekroju Nowy Bieruń (23,7 km) i Pustynia - Oświęcim (0,5 km). Ponadto, porównano bilanse zrzutu dołowych wód pochodzących z odwadniania kopalń zlokalizowanych w dorzeczu Górnej Wisły w latach 1994-2003 oraz przedstawiono prognozę bilansu na rok 2010. Analiza wykazała, że sumaryczny ładunek chlorków i siarczanów, wprowadzany do Górnej Wisły bezpośrednio i przez jej dopływy, ulegał stopniowo zmniejszaniu (o około 35% w latach 2000-2001 w stosunku do 1994 roku). Spadek ten był wynikiem ograniczania dopływu zasolonych wód do kopalń czynnych (były to tzw. działania "u źródła), o wodach silnie zmineralizowanych. Przewiduje się, że największy efekt ekologiczny w zlewni Górnej Wisły zostanie uzyskany po 2006 roku w wyniku zatopienia kopalni "Piast" Ruch II i przekształcenia wyrobisk tej kopalni w zbiornik retencyjno-dozujący.
The article analyses the impact of hard coal mining restructuring on the quality of surface waters in the Upper Vistula catchment area, resulting from changes relating to salty waters discharge from mine draining. On the basis of monitoring results have been analysed quality changes of Vistula waters at the 40 km of the section from the measuring-control point below the Goczałkowice reservoir - before mine water discharge - to the measuring-control point Pustynia-Oświecim - after mine water discharge from mines in the Vistula catchment area (without "Janina" mine). There have been also analysed water quality changes in the tributaries of the Vistula river: Gostynia, Goławiecki stream, Przemsza. It has been ascertained that after 1994 followed water salinity reduction in the Gostynia and Przemsza rivers in the estuary section to the Vistula river as well as in the Vistula in the cross-section Nowy Bieruń (23.7 km) and Pustynia-Oświęcim (0.5 km). Furthermore, the balances of discharge of mine waters deriving from the drainage of mines located in the Upper Vistula river basin in 1994-2003 were compared and a balance forecast for 2010 was presented. The analysis has pointed out that the summary load of chlorides and sulphates, introduced directly to the Upper Vistula as well as through its tributaries, was subject to gradual reduction (by about 30% in the years 2000-2001 in relation to the year 1994). This decrease was the result of limitation of inflow of salty waters into operating mines (this was the so-called action "at the source"), with highly mineralised waters. We predict that the greatest ecological effect in the Upper Vistula catchment area will be achieved after the year 2006 in consequence of flooding in the "Piast-Part II" mine and transformation of workings of this mine into a storage reservoir.

Źródło:

Prace Naukowe GIG. Górnictwo i Środowisko / Główny Instytut Górnictwa; 2006, 2; 91-106
1643-7608

Pojawia się w:

Prace Naukowe GIG. Górnictwo i Środowisko / Główny Instytut Górnictwa

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 13.

Tytuł:

Measured and predicted values of water temperature and salinity with special focus on the surface layer

Autorzy:

Kamińska, M.

Powiązania:

https://bibliotekanauki.pl/articles/1920509.pdf

Data publikacji:

1999

Wydawca:

Instytut Morski w Gdańsku

Tematy:

salinity
POLRODEX
water temperature

Opis:

The Baltic is a stratified sea. The upper layer is under the influence of atmospheric and terrestial factors. The mechanisms of these external factors on the surficial and subsurface water layer are well recognised but the vertical exchange in the water body is still not sufficiently investigated. Field measurements at sea are time consuming and expensive. A model of the Baltic Sea distributed to and accessible by institutions investigating the Baltic Sea is advantageous because of easier exchange modelled data. The modelling, especially of the surface layer is important due to the fact that outside the coastal zone continuous measurements of physical parameters is difficult. The comparison between measured in situ and modelled data serves as a tool for the corrections to HIROMB resulting in better approximation of real phenomena occurring in the Baltic Sea. Temperature and salinity values obtained on board rlv Baltica during the POLRODEX'97 expetriment were compared with modelled values. The analysis showed significant differences between in situ measurements and obtained from the HIROMB model.

Źródło:

Biuletyn Instytutu Morskiego w Gdańsku; 1999, 26, 1; 97-111
1230-7424
2450-5536

Pojawia się w:

Biuletyn Instytutu Morskiego w Gdańsku

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 14.

Tytuł:

Assessment of the quality and irrigation purpose suitability of alluvial water in erfoud, Morocco

Autorzy:

Latos, Beata
Szczucińska, Anna
Kozłowski, Rafał

Powiązania:

https://bibliotekanauki.pl/articles/1051178.pdf

Data publikacji:

2019-09-30

Wydawca:

Uniwersytet im. Adama Mickiewicza w Poznaniu

Tematy:

water quality
groundwater chemistry
salinity
SAR
Morocco

Opis:

Dry areas are especially exposed to the risk of water shortages and elevated mineralization. High water salinity, caused by low precipitation, high evaporation and human impact, usually strongly limits the use of the water for irrigation. The aim of the study was to assess the quality and irrigation purpose suitability of alluvial water in the Erfoud oasis, Morocco. The samples of water were collected from 20 wells in June 2017. We observed excessive concentrations of many parameters i.a.: NO3, Cd, Ni, Na, NH4, Cl, SO4, Fe, Cr. To determine the possibility to use the water for irrigation purposes, the Sodium Adsorption Ratio (SAR), sodium percentage (%Na), permeability index (PI), Kelly’s ratio (KR), magnesium hazards (MH) and electrical conductivity (EC) were assessed. The values of KR and MH qualified the waters as unsuitable for irrigation purposes. The observed %Na indicates that the groundwater is permissible for irrigation purposes, and permeability index, that it is of moderate quality. However, water classification using the SAR vs EC diagram confirms its high and very high alkali and salinity hazard. The mean EC value of the water was 9.5 mS cm−1.

Źródło:

Quaestiones Geographicae; 2019, 38, 3; 67-79
0137-477X
2081-6383

Pojawia się w:

Quaestiones Geographicae

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 15.

Tytuł:

Temperature and salinity of surface water at a coastal measuring point, Isbjörnhamna, Spitsbergen

Autorzy:

Swerpel, Sławomir

Powiązania:

https://bibliotekanauki.pl/articles/2053282.pdf

Data publikacji:

1987

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

Arctic
Spitsbergen
sea water
temperature and salinity

Źródło:

Polish Polar Research; 1987, 8, 1; 57-64
0138-0338
2081-8262

Pojawia się w:

Polish Polar Research

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 16.

Tytuł:

The Effects of the Quality of Irrigation Water Used on Agricultural Soils in Coastal Chaouia, Morocco

Autorzy:

Rafik, Fadwa
Saber, Najib
Halima, Oumaima Iben
Douaik, Ahmed

Powiązania:

https://bibliotekanauki.pl/articles/2202376.pdf

Data publikacji:

2023

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

coastal Chaouia
irrigation
well water
soil
salinity

Opis:

The Coastal Chaouia region is located south of the Casablanca city (Morocco). Since the 1970s, groundwater has been used intensively for irrigation, previously for growing citrus and currently for vegetables and forages. The increase of irrigated soils by pumping has induced environmental problems such as the degradation of groundwater quality and salt water intrusion. For these reasons, this work aimed to study the impact of the irrigation water quality upon the agricultural soils. During the study, 71 samples of well water and soil were taken to represent the whole considered area, which comprised 3 different zones (0–1.8 km, 1.8–4.5 km, and 4.5–11 km from the coast). The analyzed parameters were salinity and pH. The results showed firstly that the soil pH average values decrease for the three zones with 7.73, 7.57, and 7.52, respectively. However, the water pH averages vary from 7.24 to 7.49. For the soil electrical conductivity, it represents a light decrease moving from the nearest zone to the sea to the far one (average of 3.54, 2.66, and 2.33, respectively). A similar result is for observed water electrical conductivity with average of 6.83, 5.30, and 2.06, respectively, for the three zones. The analyses of the soil and water salinity show that both salinities decreased moving from the coast to inland. Richard and Wilcox charts have confirmed the strong mineralization and the poor quality of most of the well water which are close to the sea.

Źródło:

Journal of Ecological Engineering; 2023, 24, 2; 50--60
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 17.

Tytuł:

Hydrochemical characteristics and water quality assessment of Lake Dayet Erroumi – Khemisset, Morocco

Autorzy:

El Qryefy, Mohamed
Ouardi, Jamila
Najy, Mohamed
Belghyti, Driss
El Kharrim, Khadija

Powiązania:

https://bibliotekanauki.pl/articles/1844350.pdf

Data publikacji:

2021

Wydawca:

Instytut Technologiczno-Przyrodniczy

Tematy:

Dayet Erroumi
hydrochemical characteristics
Morocco
salinity
water quality

Opis:

The objective of this paper is to study the hydrochemical characteristics of Lake Dayet Erroumi (Khemisset, Morocco). Three sampling campaigns were carried out in April, July and November 2019. The temperature, pH and electrical conductivity were measured in situ using Hanna Instruments HI 98280. Concentrations of calcium, magnesium, carbonate, bicarbonate and chloride were analysed by the volumetric method. The atomic absorption technique was used to determine sodium, potassium, nitrate and sulphate. The physico-chemical analysis of the water indicates that the pH is basic. The nitrate and sulphate concentrations show that the water is of good quality according to Moroccan surface water guidelines. Furthermore, the hydrochemical facies of water is of the sodium-chloride type according to the Piper diagram. The value of the electrical conductivity indicates that the lake water has high salinity. The high mineralization of water is explained by the leaching from evaporitic rocks in the region. The principal component analysis shows that the spatial and temporal variation in salinity constitutes the major phenomenon of the hydrochemical characteristics of this lake. Salinity varies inversely with the pH value. The salinity of the water is controlled by abiotic factors (rain and evaporation). However, other parameters (pH, nitrate, carbonate and bicarbonate) depend on biotic factors. Evaporation plays a crucial role in the seasonal variation of the water chemical composition. During wet seasons, the mineralization of water decreases due to dilution by rainwater and the water level of the lake rises (high water period). During dry seasons, lake water evaporates and consequently the mineralization of the water increases, which explains the increase in salinity during the low water period.

Źródło:

Journal of Water and Land Development; 2021, 49; 179-187
1429-7426
2083-4535

Pojawia się w:

Journal of Water and Land Development

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 18.

Tytuł:

Preliminary Phytotoxicity Test on Salinity Against Mangrove Plants of Rhizophora mucronata

Autorzy:

Titah, Harmin Sulistiyaning
Purwanti, Ipung Fitri
Pratikno, Herman
Chimayati, Rachmi Layina
Handayanu, -

Powiązania:

https://bibliotekanauki.pl/articles/952465.pdf

Data publikacji:

2019

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

bio-desalination
brackish water
mangrove
salinity
preliminary phytotoxicity

Opis:

The phytotechnology concept that is applied for a bio-desalination reactor become a new desalination technology. The desalination technology can be called as bio-desalination technology to remove ions of Na+ and Cl- in brackish or saline water using mangrove plant. Before the mangrove plants were used in bio-desalination technology, the preliminary phytotoxicity test was conducted. The purpose was to determine the salinity concentration at which the mangrove species of Rhizophora mucronata can survive. The preliminary phytotoxicty test was carried out using a plastic reactor that was designed as a reed bed system. The reactors filled with gravel, sand, and artificial saline water. The variation of the NaCl concentrations were 0 mg/L as control, 10,000; 20,000; 30,000; 40,000, and 50,000 mg/L. The physical observation of the survival condition of Rhizophora mucronata was carried out during the preliminary test for 7 days. The analysis of Scanning Electron Microscopy (SEM) on Rhizophora mucronata was conducted at the end of exposure. The results showed that Rhizophora mucronata could not survive at the concentrations of 40,000 and 50,000 mg/L. Rhizophora mucronata changed the color of the leaves to brown and the stems become softer. Multiple cell damage and the decreasing trend of sodium and chloride amounts occured on roots and stems at the salinity concentration of 50,000 mg/L. In conclusion, the high of salinity concentration (> 30,000 mg/L) can be toxic to Rhizophora mucronata.

Źródło:

Journal of Ecological Engineering; 2019, 20, 3; 126-134
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 19.

Tytuł:

Is practical salinity conservative in the Baltic Sea?

Autorzy:

Feistel, R.
Weinreben, S.

Powiązania:

https://bibliotekanauki.pl/articles/48152.pdf

Data publikacji:

2008

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

Standard Seawater
chemical composition
oceanographic measurement
Baltic water
temperature
Baltic Sea
practical salinity scale
salinity
calcium ion
sea water

Opis:

The conductivity-salinity conversion algorithm used for oceanographic measurements of Practical Salinity on the PSS-78 scale is designed for IAPSO Standard Seawater. The application of this formula to a given sample of non-standard seawater does not necessarily result in a constant salinity value when the sample’s conductivity is measured at different temperatures.We have experimentally studied the magnitude of this non-conservative effect of Practical Salinity using a sample of Baltic seawater possessing a density anomaly of about 50 g m−3. The apparent change of salinity observed is at the limit of experimental uncertainty and is not significantly different from the drift of Standard Seawater, which was measured for comparison.

Źródło:

Oceanologia; 2008, 50, 1; 73-82
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 20.

Tytuł:

Water Quality and Radionuclides Content Assessment of the Al-Najaf Sea: Case Study

Autorzy:

Zwain, Haider M.
Almurshedi, Kareem Radhi
Vakili, Mohammadtaghi
Dahlan, Irvan
Naje, Ahmed Samir

Powiązania:

https://bibliotekanauki.pl/articles/1839100.pdf

Data publikacji:

2021

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

irrigation water
water quality assessment
salinity
sodicity
radionuclide
Al-Najaf Sea

Opis:

The Al-Najaf state is witnessing an increased economic development and attracting more investments that require the development of new areas and exploring new water resources. This study evaluates the quality of 12 surface water samples and groundwater from 12 wells for irrigation according to the salinity and sodicity hazards based on electrical conductivity (EC) and sodium adsorption ratio (SAR). In addition, the concentrations of radionuclides, which include Thorium (232Th), Uranium (238U), Potassium (40K) and Cesium (137Cs) were tested in four soil samples in the study area. It was found that the average values of pH, total hardness, Na, Ca, Mg, K, Cl, SO4, NO3 for groundwater and surface water were 8 and 6, 2287 and 4006 mg/L, 1140 and 1232 mg/L, 378 and 637 mg/L, 327 and 587 mg/L, 2 and 2 mg/L, 989 and 2007 mg/L, 1149 and 1325 mg/L, as well as 2 and 2 mg/L, respectively. From salinity and sodicity hazards analysis, the groundwater had EC of 5242 µS/cm and SAR of 61, whereas surface water had EC of 6253 µS/cm and SAR of 50. Furthermore, the concentrations of radionuclides, i.e. 232Th, 238U, 40K and 137Cs in the soil samples were found to be 11.02, 34.12, 544.45, and 1.6 Bq/kg, respectively. The concentrations of radionuclides were within the worldwide baseline, expect for 40K. The study concluded that both water sources are classified as very high salinity and sodium water (class C4-S4), and it cannot be used for irrigation, only suitable for the salt tolerant crops.

Źródło:

Journal of Ecological Engineering; 2021, 22, 2; 262-271
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 21.

Tytuł:

On the buoyant sub-surface salinity maxima in the Gulf of Riga

Autorzy:

Liblik, T.
Skudra, M.
Lips, U.

Powiązania:

https://bibliotekanauki.pl/articles/48990.pdf

Data publikacji:

2017

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

thermohaline structure
Riga Gulf
water column
temperature
salinity
stratification
water exchange
intrusion

Opis:

Thermohaline structure in the Gulf of Riga (GoR) was investigated by a multiplatform measurement campaign in summer 2015. Stratification of the water column was mainly controlled by the temperature while salinity had only a minor contribution. Buoyant salinity maxima with variable strength were observed in the intermediate layer of the Gulf of Riga. The salinity maxima were likely formed by a simultaneous upwelling—downwelling event at the two opposite sides of the Irbe strait. The inflowing salty water did not reach the deeper (> 35 m) parts of the gulf and, therefore, the near-bottom layer of the gulf remained isolated throughout the summer. Thus, the lateral water exchange regime in the near bottom layer of the Gulf of Riga is more complicated than it was thought previously. We suggest that the occurrence of this type of water exchange resulting in a buoyant inflow and lack of lateral transport into the near-bottom layers might contribute to the rapid seasonal oxygen decline in the Gulf of Riga

Źródło:

Oceanologia; 2017, 59, 2
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 22.

Tytuł:

Wheat yield response and seasonal salt profile evolution under irrigation with saline waters in a semi-arid region

Autorzy:

Cheraghi, Seyed A. M.

Powiązania:

https://bibliotekanauki.pl/articles/293346.pdf

Data publikacji:

2020

Wydawca:

Instytut Technologiczno-Przyrodniczy

Tematy:

saline water
soil salinity
wheat yield
rainfall
leaching fraction

Opis:

Scarcity of fresh water resources is the major constraint for agricultural development in Iran as in many other regions with arid and semi-arid climate. With the pressure on fresh water resources, the use of un-conventional water resources including brackish, saline and sewage water has received greater attentions in recent years. The objective of this study was to assess the impact of farmers' practices using saline groundwater on wheat yield and soil salinity in a Mediterranean climate of Fars province in southern Iran. The study was carried out in several commercial wheat production regions for two years. Chemical analysis of irrigation waters, volume of applied irrigation water, electrical conductivity of soil saturation extract (ECe) and yield were measured in each field. General information on agronomic practices was also collected using a questionnaire. Results demonstrate that waters with salinities higher than what has been classified as “suitable for irrigation” are being used for the production of wheat crop. Analysis of wheat yield response to saline irrigation water showed that for water salinities up to 10.7 mS∙cm^–1 (threshold value) variation in yield was relatively minor, above which wheat yield decreased at a greater rate. Root zone salinity profiles showed the effect of winter rainfall in reducing soil salinity. It is concluded that although acceptable yields are obtained with some of the highly brackish waters, over application of these waters would threaten the sustainability of crop production in the region.

Źródło:

Journal of Water and Land Development; 2020, 44; 26-32
1429-7426
2083-4535

Pojawia się w:

Journal of Water and Land Development

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 23.

Tytuł:

Możliwość pomiaru zasolenia w materiałach budowlanych za pomocą metody TDR
Possibility of salinity determination in building materials using TDR method

Autorzy:

Suchorab, Z.
Deneka, B.
Łagód, G.
Sobczuk, H.

Powiązania:

https://bibliotekanauki.pl/articles/125906.pdf

Data publikacji:

2009

Wydawca:

Towarzystwo Chemii i Inżynierii Ekologicznej

Tematy:

przegrody budowlane
woda
zasolenie
TDR
building barriers
water
salinity

Opis:

Zasolenie przegród budowlanych to powszechny problem wielu obiektów, a w szczególności historycznych. Jony soli przemieszczające się z wodą w przegrodach budowlanych są przyczyną ich zniszczenia. W dużych stężeniach krystalizują wewnątrz porów struktury materiału budowlanego i niszczą ją. Są również bardzo uciążliwe przy renowacjach obiektów zabytkowych ze względu na niekorzystny wpływ na zewnętrzne tynki elewacyjne. Możliwość pomiaru zasolenia przegród budowlanych daje informację na temat stężenia jonów w danym materiale i umożliwia dobór właściwej metody renowacyjnej z punktu widzenia istniejącego problemu. Praca przedstawia metodę TDR jako alternatywę w wyznaczaniu zasolenia przegród budowlanych. Udoskonalenie tej metody dałoby możliwość wyznaczania dwóch parametrów (wilgotności i zasolenia) w jednym kroku pomiarowym. Przedstawiono kalibrację oraz analizę przebiegu echa impulsu elektromagnetycznego przebiegającego w przegrodach budowlanych o różnej wilgotności i różnym zasoleniu.
Salinity of the building barriers is a common problem in many objects, especially the historical ones. Ions of salt which are moved by water through the walls are the reason of their destruction. In high concentrations they crystallize inside the pores of a building structure and destroy it. They are also very inconvenient in old building renovations because of their harmful influence on external plasters. The possibility of building barriers salinity measurement gives the information about the ions concentration in the material and enables finding the suitable renovation method from the point of view of the problem. This paper presents the TDR method as an alternative in determination of building barriers salinity. Development of this method would give the possibility to measure two parameters of the barrier (water content and salinity) in one single measurement step. In the paper there are presented calibration and the analysis of the TDR electromagnetic pulse echo running in building barriers with different moisture and salinity.

Źródło:

Proceedings of ECOpole; 2009, 3, 1; 199-205
1898-617X
2084-4557

Pojawia się w:

Proceedings of ECOpole

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 24.

Tytuł:

Increases in the temperature and salinity of deep and intermediate waters in the West Spitsbergen Current region in 1997–2016

Autorzy:

Merchel, M.
Walczowski, W.

Powiązania:

https://bibliotekanauki.pl/articles/2079090.pdf

Data publikacji:

2020

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

climate change
deep water
temperature
salinity
intermediate water
West Spitsbergen current
hydrographic data

Opis:

This study investigated the temporal variability in the basic physical properties of deep and intermediate waters in the West Spitsbergen Current region at 76°30’N latitude from 1997 to 2016. Emphasis was placed on quantifying the changes in temperature and salinity and determining the potential drivers of these changes. Hydrographic data were obtained during annual summer cruises aboard the r/v Oceania in the Nordic Seas. The increase in the water temperature, which was especially strong in the western part of the investigated section, was associated with considerable changes in the water layers salinity. The temperature and salinity of the intermediate water increased much faster (0.021°C yr−1 and 0.0022 yr−1, respectively) than those of the deep water (0.009°C yr−1 and 0.0004 yr−1, respectively). The warming rate in the upper 2000 m was also higher than the mean warming rate of the global ocean. The source of the deep water temperature and salinity increases was the deep water inflow from the Arctic Ocean into the Greenland Sea. In contrast, the increase in these properties in the intermediate water was associated with the advection of warmer and more saline Atlantic Water from the North Atlantic to the Nordic Seas.

Źródło:

Oceanologia; 2020, 62, 4PA; 501-510
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 25.

Tytuł:

A Study of the Processes of Desertification at the Modern Delta of the Ili River with the Application of Remote Sensing Data

Autorzy:

Laiskhanov, Shakhislam Uzakbaevich
Poshanov, Maksat Nurbaiuly
Smanov, Zhassulan Maratuly
Karmenova, Nursipa Nursanovna
Tleubergenova, Kenzhekey Akhmetvalievna
Ashimov, Tazhihan Ashimovish

Powiązania:

https://bibliotekanauki.pl/articles/1839177.pdf

Data publikacji:

2021

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

water supply
satellite imagery data
soil salinity
vegetation indices

Opis:

The water regime is the main factor contributing to the formation of landscapes in the river deltas of arid zones, any fluctuations in which lead to a change in the integral hydromorphic landscape. After the construction of the Kapshagai reservoir, the anthropogenic load on the ecosystem of the Ili River delta increased, as a result of which degradation processes, such as drying out and salinization, intensified. In the short term, this phenomenon may lead to the desertification of about 1 million ha of land in the modern river delta. In this regard, the main goal of this study is to look at the processes of desertification in the modern delta of the Ili River, using remote sensing data, which allows for quick identification of the long-term dynamics of degradation processes. For this, the authors used satellite data from Landsat 1–5 MSSS and Landsat 8OLI satellites for 1979 and 2019 and soil analysis data obtained through the ground (field) surveys. Using regression analysis of space and soil data, predictors for interpreting space images were identified and maps of landscape drying and soil salinization were compiled, reflecting the changes that have occurred over the past 40 years. As a result, it was found that in 2019, compared to 1979, the area of landscapes covered with vegetation had decreased by 12% and there was a transformation of hydromorphic landscapes into salt marshes and solonetzes. Over the past 40 years, the volume of non-saline soils has decreased by 41.3% and the volume of saline soils has increased to varying degrees. That is, at present, on the territory of the modern delta, a difficult land improvement situation has developed associated with the cessation of spring and summer floods due to the intensive water use at the Chinese and Kazakh sides.

Źródło:

Journal of Ecological Engineering; 2021, 22, 3; 169-178
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 26.

Tytuł:

Po co człowiekowi sól?
Why do we need salt?

Autorzy:

Kortas, G.

Powiązania:

https://bibliotekanauki.pl/articles/166974.pdf

Data publikacji:

2017

Wydawca:

Stowarzyszenie Inżynierów i Techników Górnictwa

Tematy:

ryft afrykański
ewolucja hominidów
słony pot
saliny
odpady solne
zasolenie wód i gleby
African Rift
hominid evolution
salty sweat
salinas
salt waste
water and soil salinity

Opis:

Praca przeglądowo przedstawia powiązanie człowieka z solą w perspektywie jego ewolucji ze świata zwierząt do współczesności. Na tle modelu powstania człowieka Y. Coppensa (1994), wskazuje na dostępność do soli, jako jednego z podstawowych warunków sukcesu ewolucyjnego hominidów i powstania homo sapiens. Wykorzystanie pierwszych narzędzi kamiennych w strefie Ryftu Afrykańskiego do skrobania osadów solnych było prawdopodobnie początkiem urabiania skał. Ze względu na biologiczne uwarunkowania człowieka, sól pełniła zawsze rolę ważnego składnika pokarmowego. Pokazane tu różnorodne związki ludzi z solą dokumentowane były od czasów powstania alfabetu. Dotyczy to sposobów wydobycia soli w odkrywkach, w kopalniach podziemnych i otworowych, transportu i wykorzystania soli. Pozyskiwanie soli wpływało znacząco na organizację i gospodarkę państw w starożytności, w średniowieczu i czasach współczesnych. Sól była i nadal jest pobierana z morza, słonych wycieków i zasolonych wód, z powierzchniowych osadów i podziemnych formacji solnych. Pokazując obecne jej wykorzystanie, wskazuje się na współczesne zróżnicowanie technik górniczych, sposobów i celów zagospodarowania przestrzeni wyrobisk, w tym dla podziemnego magazynowania i składowania czy udostępnienia ich turystom. Rośnie wykorzystanie walorów leczniczych solanki czy zasolonego powietrza w kopalniach podziemnych i tężniach. Złoża soli wykorzystywano także do przeprowadzania w nich próbnych wybuchów nuklearnych. Zwraca się również uwagę na rosnące niekorzystne oddziaływanie soli jako odpadu, postępujące zasolenie cieków i wielkich naturalnych zbiorników wodnych. Dlatego w pracy wskazano na potrzebę zwiększenia racjonalności i odpowiedzialności w gospodarce solą.
This study is a review of the association between man and salt during the evolution of the humans from the animals to the contemporary man. Based on the model of the origin of man by Yves Coppens (1994), the author indicates that the access to salt was one of the fundamental conditions of the evolutionary success of the hominids and the origin of the homo sapiens. Using the first rock tools to scratch salt deposits in the area of the African Rift was probably how mineral extraction began. Owing to the biological conditions of mankind, salt always played the role of an important nutrient. Various associations between man and salt were documented since the origin of alphabet. Those concerned the methods of salt extraction from open pits, underground mines, and solution mines, as well as salt transportation, and applications of salt. Salt extraction considerably influenced the organization and economies of states in ancient, medieval, and contemporary times. Salt was and has been collected from the sea, salt outcrops, brine leaks, surface deposits, and underground formations. Demonstrating the present-day uses of salt, we indicate the current diversity of mining technologies, methods, and types of working development, including the systems of underground storage in former workings and caverns, as well as making old workings available to tourists. The use of brines or salty air in underground mines and graduation towers for medical purposes is expanding. The workings in salt mines were also used for conducting nuclear tests. This paper also mentions the adverse effects of salt waste, including the increased salinity of watercourses and large, natural water reservoirs. For that reason, the need of increased rationality and responsibility in salt management has been indicated.

Źródło:

Przegląd Górniczy; 2017, 73, 7; 42-50
0033-216X

Pojawia się w:

Przegląd Górniczy

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 27.

Tytuł:

Investigation and calibration of thermal and salinity layering in surface water resources using Ce-Qual-W2 model

Autorzy:

Chen, Tzu-Chia
Yu, Shu-Yan
Wang, Chang-Ming
Xie, Sen
Barazandeh, Hanif

Powiązania:

https://bibliotekanauki.pl/articles/2048504.pdf

Data publikacji:

2021

Wydawca:

Instytut Technologiczno-Przyrodniczy

Tematy:

Ce-Qual-W2 model
salinity
surface water
thermal layering
water quality modelling
water resources

Opis:

In the discussion of water quality control, the first and most effective parameter that affects other variables and water quality parameters is the temperature situation and water temperature parameters that control many ecological and chemical processes in reservoirs. Additionally, one of the most important quality parameters studied in the quality of water resources of dams and reservoirs is the study of water quality in terms of salinity. The salinity of the reservoirs is primarily due to the rivers leading into them. The control of error in the reservoirs is always considered because the outlet water of the reservoirs, depending on the type of consumption, should always be standard in terms of salinity. Therefore, in this study, using the available statistics, the Ce-Qual-W2 two-dimensional model was used to simulate the heat and salinity layering of the Latyan Dam reservoir. The results showed that with warming and shifting from spring to late summer, the slope of temperature changes at depth increases and thermal layering intensifies, and a severe temperature difference occurs at depth. The results of sensitivity analysis also showed that by decreasing the wind shear coefficient (WSC), the reservoir water temperature increases, so that by increasing or decreasing the value of this coefficient by 0.4, the average water temperature by 0.56°C changes inversely, and the results also show that by increasing or decreasing the value of the shade coefficient by 0.85, the average water temperature changes by about 7.62°C, directly.

Źródło:

Journal of Water and Land Development; 2021, 51; 117-123
1429-7426
2083-4535

Pojawia się w:

Journal of Water and Land Development

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 28.

Tytuł:

Variability of temperature and salinity over the last decade in selected regions of the Southern Baltic Sea

Autorzy:

Rak, D.
Wieczorek, P.

Powiązania:

https://bibliotekanauki.pl/articles/48785.pdf

Data publikacji:

2012

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

temperature
salinity
Southern Baltic Sea
trend
seasonal variability
physical property
water column
water exchange
water circulation

Opis:

Changes in the basic physical properties of selected areas of the Baltic Proper were analysed on the basis of the results of a 12-year series of high-resolution measurements collected during cruises of r/v ‘Oceania’. The high-resolution CTD sections covered three main basins: the Bornholm Basin, Słupsk Furrow and Gdańsk Basin. Positive temperature trends of 0.11 and 0.16◦C year−1 were observed in the surface and deep layers respectively. The salinity trend was also positive. The rise in the air temperature has probably caused the increase in surface water temperature, while advection has been of greater significance in the deep layer. The increase in salinity coincides with the more frequent occurrence of small and medium-size inflows through the Danish Straits, even though large inflows are evidently less frequent than used to be the case. The seasonal variability of temperature in the water column was analysed. The phase shift in the seasonal evolution with depth is described. The maximum temperature shift in the waters investigated varies from 32 to 38 days.

Źródło:

Oceanologia; 2012, 54, 3
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 29.

Tytuł:

Attenuation of ultraviolet irradiance in North European coastal waters

Autorzy:

Aas, E.
Hojerslev, N.K.

Powiązania:

https://bibliotekanauki.pl/articles/48908.pdf

Data publikacji:

2001

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

attenuation
coastal water
fjord
salinity
Europe
optical property
ultraviolet irradiance

Opis:

A total of 439 measurements of downward ultraviolet irradiance in North European coastal waters have been analysed,half of which have been taken from other authors. The depths Z(10%) where the irradiance is reduced to 10% of its surface value vary by one order of magnitude in the open coastal waters,b oth at wavelengths of 310 nm (0.3–10.4 m) and 380 nm (1.2–13.0 m). In the fjords and estuaries the depth ranges are reduced to 0.08–6.1 m at 310 nm and 0.18–7.7 m at 380 nm. Mixing with saline ocean waters can increase these light penetration depths to more than 10 m,while river water can reduce them to a few centimetres.

Źródło:

Oceanologia; 2001, 43, 2
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 30.

Tytuł:

Changes of water pollution dynamics in Vistula river on Warsaw city area

Autorzy:

Dębska, K.
Rutkowska, B.

Powiązania:

https://bibliotekanauki.pl/articles/101015.pdf

Data publikacji:

2017

Wydawca:

Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN

Tematy:

water quality
Vistula river
Warsaw
salinity
biogenic elements
permanganate index

Opis:

The paper presents change of water quality within Vistula River in the city of Warsaw. Water samples for analysis were taken from four different measurement points in the period from February to June 2016. Based on the results of laboratory studies it was demonstrated that the Vistula River in Warsaw is exposed to the input of pollutants contributing to increase the salinity, especially in winter and early spring. The concentration of both chlorides and sulphates were highest in February and was decreasing in subsequent months of the year. At the same time it has been shown that during the entire study period the concentration of Cl– ion exceeded the limit values for water quality II class in Poland. While the SO4 2– concentrations in water samples taken in the winter months (February-March) exceeded the limit values for the second quality class, in April, it was within the acceptable range for II class water quality, and in May and June does not exceed the value referred to as standard for I class of water quality. Based on the analysis of indicators of nutrients (N-NH4 , N-NO3 , Ptot.) it was found that the Vistula is not exposed to eutrophication due to their low concentration, which indicates a very good water quality. At the same time permanganate index (CODMn) indicates a low organic load of Vistula.

Źródło:

Infrastruktura i Ekologia Terenów Wiejskich; 2017, II/2; 849-861
1732-5587

Pojawia się w:

Infrastruktura i Ekologia Terenów Wiejskich

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 31.

Tytuł:

Assessment of Shoreline Changes and the Groundwater Quality along the Coast of Kuakata, Patuakhali, Bangladesh

Autorzy:

Goswami, Sukhen
Rahman, Shaikh Ashikur
Alam, Mir Md. Tasnim
Rahman, Mahfuzur
Rafiq, Md. Risalat
Jaman, Md. Hasnat
Roy, Dhiman Kumer

Powiązania:

https://bibliotekanauki.pl/articles/2173235.pdf

Data publikacji:

2022

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

saline water intrusion
hydrogeochemical analysis
digital shoreline analysis system
salinity

Opis:

Shoreline changes and groundwater quality monitoring have become pressing issues for the coastal region of Bangladesh. This study investigated the shoreline changes from 2000 to 2020 and evaluated the groundwater quality, as well as SWI in the Kuakata coastal area. While analyzing satellite images, the temporal shoreline changes were assessed through the Digital Shoreline Analysis System (DSAS) in ArcGIS 10.4.1. Higher erosion rates (>2 m/year) were found in the southernmost part and the SE part of the studied area. Twenty-five groundwater samples were collected, and the physicochemical parameters were measured to assess the groundwater quality. The geographic information system (GIS) was used to assess the spatial variation of the EC, pH, and Cl⁻ contents through the inverse distance weighted (IDW) interpolation method. The EC, Cl⁻, and pH values of the studied groundwater ranged from (1.2 mS/cm to 19.5 mS/cm), (79.88 mg/L to 11241.67 mg/L), and (7.9 to 8.7), repectively. The analysis revealed that the majority of the groundwater samples were unsuitable for drinking purpose due to higher EC and Cl⁻ values. Saline water intrusion (SWI) was determined by using the alternative EC vs Cl⁻ method in the southern part of the Kuakata beach area, which was closest to the sea.

Źródło:

Journal of Ecological Engineering; 2022, 23, 7; 323--332
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 32.

Tytuł:

The influence of fertilisation on the water-salt regime in the conditions of the Mugan-Salyan massif, Azerbaijan

Autorzy:

Mustafayev, Mustafa
Tukenova, Zulfiya
Alimzhanova, Mereke
Ashimuly, Kazhybek
Mustafayev, Farid

Powiązania:

https://bibliotekanauki.pl/articles/2174323.pdf

Data publikacji:

2022

Wydawca:

Instytut Technologiczno-Przyrodniczy

Tematy:

convective diffusion
forecast
ground water
irrigation norm
reclamation
salinity soils

Opis:

The article presents research data on the amount of salts in the irrigated soils of the Mughan-Salyan massif, their composition, water-salt regime, and their forecast. It was found that the soils on the territory of the massif were saline to varying degrees. In general, the area of non-saline soils in the massif is 125,650 ha, mildly - 272,070 ha, moderately - 210,560 ha, highly - 125,850 ha, very highly - 109,450 ha and saline soils - 27,520 ha. The absorbed bases in the soils of the massif were studied, and it was determined that they change depending on the amount of salts as follows: in mildly saline soils, Ca - 57.82-68.31%, Mg - 25.26-36.28%, Na - 5.49-6.43%; in moderately saline soils - 56.77-65.76%, 27.03-35.58%, 7.12-7.94%, respectively; in highly saline areas - 54.05–64.75%, 24.94-43.67% and 9.19-14.42%. As you can see, the soils are mildly and moderately saline. The soils in the surveyed areas are saline to varying degrees (i.e., the average value of salts in the 0-100 cm layer of the soil varies between 0.25 and 1.00%). The biological product used in these soils contains a wide range of macro and microelements, humic acids, fulvic acids, amino acids, vitamins and enzymes that do not contain BioEcoGum mineral fertilisers. This biological product was used for the first time and one of the main goals was to study the improvement of water-physical properties of soils after its use. Therefore, the water-salt regime of the soils of the study area was studied on three experimental sites selected for the area, the number of irrigations for different plants, and their norms were determined taking into account the depth of groundwater in the soils and shown in tabular form. They are widely used in farms and these regions, taking into account the proposed irrigation norms and their quantity.

Źródło:

Journal of Water and Land Development; 2022, 55; 276--285
1429-7426
2083-4535

Pojawia się w:

Journal of Water and Land Development

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 33.

Tytuł:

Contrasting zooplankton communities (Arctic vs. Atlantic) in the European Arctic Marginal Ice Zone

Autorzy:

Blachowiak-Samolyk, K.

Powiązania:

https://bibliotekanauki.pl/articles/47495.pdf

Data publikacji:

2008

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

zooplankton community
Arctic water
Fram Strait
temperature
Barents Sea
Atlantic water
salinity
environmental factor

Opis:

Relationships between the zooplankton community andv arious environmental factors (salinity, temperature, sampling depth and bottom depth) were established in the European Arctic Marginal Ice Zone (MIZ) using multivariate statistics. Three main zooplankton communities were identified: an Atlantic Shallow Community (AtSC), an Arctic Shallow Community (ArSC) anda Deep Water Community (DWC). All species belonging to AtSC andArSC were pooledandtheir relative abundances in the total zooplankton calculated with respect to a particular layer (surface, midan dd eep strata), regions (the Barents Sea, Fram Strait andt he waters off northern Svalbard), years (1999 or 2003) and seasons (spring or autumn). Mapping of the proportions of Arctic andA tlantic species ledto the conclusion that zooplankton from the MIZs do not exactly follow complementary water masses, although the general pattern of AtSC and ArSC dominance accords with the physical oceanography of the study area (AtW and ArW respectively). The mid layer proved to be a better predictor of mesozooplankton distribution than the unstable conditions near the surface.

Źródło:

Oceanologia; 2008, 50, 3; 363-389
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 34.

Tytuł:

Oceanographic observations in the Nordic Sea and Fram Strait in 2016 under the IO PAN long-term monitoring program AREX

Autorzy:

Walczowski, W.
Beszczynska-Moller, A.
Wieczorek, P.
Merchel, M.
Grynczel, A.

Powiązania:

https://bibliotekanauki.pl/articles/48885.pdf

Data publikacji:

2017

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

Nordic Sea
Fram Strait
spatial distribution
salinity
water temperature
Atlantic water
physical oceanography
monitoring programme

Opis:

Since 1987 annual summer cruises to the Nordic Seas and Fram Strait have been conducted by the IO PAN research vessel Oceania under the long-term monitoring program AREX. Here we present a short description of measurements and preliminary results obtained during the open ocean part of the AREX 2016 cruise. Spatial distributions of Atlantic water temperature and salinity in 2016 are similar to their long-term mean fields except for warmer recirculation of Atlantic water in the northern Fram Strait. The longest observation record from the section N along 768300N reveals a steady increase of Atlantic water salinity, while temperature trend depends strongly on parametrization used to define the Atlantic water layer. However spatially averaged temperature at different depths indicate an increase of Atlantic water temperature in the whole layer from the surface down to 1000 m.

Źródło:

Oceanologia; 2017, 59, 2
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 35.

Tytuł:

A comparison of salinity changes in the Szczecin Lagoon along the fairway Szczecin-Swinoujscie during 1956-57, 1973-76 and 1991-94

Autorzy:

Poleszczuk, G.

Powiązania:

https://bibliotekanauki.pl/articles/84930.pdf

Data publikacji:

1997

Wydawca:

Akademia Pomorska w Słupsku

Tematy:

salinity change
Szczecin Lagoon
Szczecin-Swinoujscie fairway
ichthyofauna
animal species
fish
water quality
bottom water

Źródło:

Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline; 1997, 01
1643-0115

Pojawia się w:

Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 36.

Tytuł:

Warm waters of summer 2002 in the deep Baltic Proper

Autorzy:

Feistel, R.
Nausch, G.
Mohrholz, V.
Lysiak-Pastuszak, E.
Seifert, T.
Matthaus, W.
Kruger, S.
Hansen, I.S.

Powiązania:

https://bibliotekanauki.pl/articles/47540.pdf

Data publikacji:

2003

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

temperature
hydrography
inflow
warm water
summer
salinity
Baltic Sea
oxygen condition

Opis:

From October 2002 until March 2003 surprisingly warm, oxygenated waters were frequently encountered in the Baltic Sea in the area between the Bornholm and Fårö Deeps from the halocline down to the bottom. Owing to their ventilation effect in the stagnating deep waters, their occasional observations have partly been incorrectly attributed to the inflow events of October 2002 or January 2003. The emergence of some of these waters can be traced back to the exceptional summer weather conditions in August and September 2002 in central Europe. The warm waters played a remarkable renewal pacemaker role for the subsequent important winter inflow of January 2003. The evolution of this summer inflow is described and possible causes are discussed.

Źródło:

Oceanologia; 2003, 45, 4
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 37.

Tytuł:

Eutrophication problems in the Western Harbour of Alexandria, Egypt

Autorzy:

Dorgham, M.M.
Abdel-Aziz, N.E.
El-Deeb, K.Z.
Okbah, M.A.

Powiązania:

https://bibliotekanauki.pl/articles/49044.pdf

Data publikacji:

2004

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

biomass
nutrient
water quality
Alexandria Western Harbour
plankton
salinity
Egypt
eutrophication

Opis:

Eutrophication-related problems in the Western Harbour ofA lexandria were studied monthly from April 1999 to March 2000. Variation in salinity appeared to be the key to all changes in water quality and plankton abundance in the harbour. Both at the surface and near the bottom the salinity was lower (annual average: 35.1 and 38.3 PSU respectively) than in the open sea (39 PSU). Dissolved oxygen levels indicated poor aeration conditions along the water column (2.3–3.98 mg l−1). Average pH values were approximately similar in the two layers (8.1 and 8 respectively) but exhibited different ranges ofv ariations. Nutrient salts varied widely, often occurring in high concentrations, with ranges of 0.12–5.7 and 0.06–2.6 μM at the surface and the bottom respectively for phosphate, 0.21–20.46 and 0.25–18.12 μM for nitrate, 0.29–3.3 and 0.23–1.66 μM f or nitrite, 0.56–57.46 and 2.32–43.73 μM for ammonia and 0.3–36.3 and 0.48–38.4 μM for silicate. As a result ofn utrient enrichment, phytoplankton growth was very intensive, reflected by an abnormally high concentration ofc hlorophyll a (annual average: 33.82 μg l−1). At the same time the death ofl arge numbers ofp hytoplankton cells could be inferred from the relatively large amount of phaeopigment (annual average: 10.39 μg l−1). The high levels ofn utrient salts and phytoplankton biomass together serve as a good indicator ofhig h eutrophication levels in the Western Harbour throughout the year. These conditions clearly affected the zooplankton stock, which varied between 5.8–93.6×103 indiv. m−3, although for most of the time values remained at a low level (annual average: 26 728 indiv. m−3).

Źródło:

Oceanologia; 2004, 46, 1
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 38.

Tytuł:

Simultaneous measurement of oxygen flux and salinity of the water saturated mineral soils

Autorzy:

Bieganowski, A.

Powiązania:

https://bibliotekanauki.pl/articles/24164.pdf

Data publikacji:

2003

Wydawca:

Polska Akademia Nauk. Instytut Agrofizyki PAN

Tematy:

mineral soil
simultaneous measurement
electrical conductivity
saturated soil
oxygen flux
soil oxygen
soil salinity
water
salinity
flux density

Źródło:

International Agrophysics; 2003, 17, 3
0236-8722

Pojawia się w:

International Agrophysics

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 39.

Tytuł:

Changes in Atlantic water characteristics in the South-Eastern Mediterranean Sea as a result of natural and anthropogenic activities

Autorzy:

Said, M.A.
Gerges, M.A.
Maiyza, I.A.
Hussein, M.A.
Radwan, A.A.

Powiązania:

https://bibliotekanauki.pl/articles/47724.pdf

Data publikacji:

2011

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

Atlantic water
change
Mediterranean Sea
Egypt
natural activity
anthropogenic activity
temperature
salinity
trend
water mass
subsurface water
water column

Źródło:

Oceanologia; 2011, 53, 1
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 40.

Tytuł:

A study of episodic events in the Baltic Sea – combined in situ and satellite observations

Autorzy:

Lysiak-Pastuszak, E.
Bartoszewicz, M.
Bradtke, K.
Darecki, M.
Drgas, N.
Kowalczuk, P.
Krasniewski, W.
Krezel, A.
Krzyminski, W.
Lewandowski, L.
Mazur-Marzec, H.
Piliczewski, B.
Sagan, S.
Sutryk, K.
Witek, B.

Powiązania:

https://bibliotekanauki.pl/articles/48563.pdf

Data publikacji:

2012

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

Baltic Sea
Ferry Box project
algal bloom
hepatotoxin
satellite image
coastal water
oceanic water
salinity
temperature

Opis:

A project was developed concerning the operational system of surveillance and the recording of episodic events in the Baltic Sea. In situ information was to be combined with multi-sensory satellite imagery to determine the extent of algal blooms, to track their evolution and that of rapid environmental events like hydrological fronts. The main element of the system was an autonomous Ferry Box module on a ferry operating between Gdynia and Karlskrona, automatically measuring temperature, salinity and chlorophyll a fluorescence. At pre-selected locations, discrete water samples were collected, which were subsequently analysed for their phytoplankton content, and algal hepato- and neurotoxins; they were also used in toxicity tests with Artemia franciscana.

Źródło:

Oceanologia; 2012, 54, 2
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 41.

Tytuł:

Impact of shelf-transformed waters (STW) on foraminiferal assemblages in the outwash and glacial fjords of Adventfjorden and Hornsund, Svalbard

Autorzy:

Szymanska, N.
Pawlowska, J.
Kucharska, M.
Kujawa, A.
Lacka, M.
Zajaczkowski, M.

Powiązania:

https://bibliotekanauki.pl/articles/48678.pdf

Data publikacji:

2017

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

Atlantic water
foraminiferal assemblage
glacial fjord
outwash fjord
Adventfjorden
Hornsund
Svalbard
inflow water
salinity
water temperature
environment change

Opis:

A new dataset of benthic foraminiferal assemblages from Adventfjorden (tributary fjord of Isfjorden, West Spitsbergen) was compared with the results of a study conducted by Zajączkowski et al. (2010) in Hornsund (West Spitsbergen). According to Nilsen et al. (2016), Atlantic water inflow to the Isfjorden Trough occurs more readily than to anywhere else along the shelf of Spitsbergen; thus, we compared the foraminiferal assemblages of the outwash Adventfjorden fjord, located in the Isfjorden system, with glacial Hornsund, located in southwest Spitsbergen. Despite the juxtaposition of Adventfjorden and Hornsund the data revealed varying impacts of shelf-transformed water (STW) on the benthic foraminiferal assemblages. Outer and central Adventfjorden was dominated by Adercotryma glomerata, Recurvoides turbinata and Spiroplectammina sp., reflecting the presence of STW, while abundant Melonis barleeanus in the central area of the fjord indicated a large flux of unaltered organic matter. Only the head of the fjord was dominated by the glaciomarine taxa Cassidulina reniforme and Elphidium clavatum. Foraminiferal fauna characteristic of STW-influenced environments (i.e., Nonionellina labradorica and R. turbinata) were also observed in outer Hornsund. However, the glacier-proximal taxa E. clavatum and C. reniforme were dominant throughout the fjord, demonstrating the impacts of meltwater and high sedimentation. Therefore, it is likely that in Hornsund, glacial impact is a major environmental factor, which is stronger than the influence of STW.

Źródło:

Oceanologia; 2017, 59, 4
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 42.

Tytuł:

Identifying the main sources of silicate in coastal waters of the Southern Gulf of Valencia (Western Mediterranean Sea)

Autorzy:

Sospedra, J.
Niencheski, L.F.H.
Falco, S.
Andrade, C.F.F.
Attisano, K.K.
Rodilla, M.

Powiązania:

https://bibliotekanauki.pl/articles/48753.pdf

Data publikacji:

2018

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

silicon
coastal water
Valencia Gulf
Mediterranean Sea
salinity
discharge
nutrient
marine environment

Opis:

Silicon is a major nutrient for siliceous primary producers, which can become a potential limiting nutrient in oligotrophic areas. Most of the silicon inputs to the marine environment come from continental discharges, from both superficial and ground waters. This study analyses the main sources of silicon and their dynamics along the southernmost 43 km of shoreline in the Gulf of Valencia (Western Mediterranean Sea). The salinity and silicate concentration in the different compartments (springs, freshwater wells, beach groundwater, surf zone and coastal waters) in this coastal area were determined. In addition, chlorophyll a and phytoplankton community were analyzed in the surf zone and coastal waters. Silicate concentrations in freshwater wells ranged between 130 and 150 μM, whereas concentrations of this nutrient declined to 49 μM in freshwater–seawater mixture transects. At the same time, there was a positive gradient in silicate for both freshwater and coastal waters southward. An amount of 18.7 t of dissolved silicate was estimated in the nearest first kilometre nearest to the coastline, 6 t of this silicate belonged to the background sea level. On the other hand, the sum of the main rivers in the area supplies 1.6 t of dissolved silicate per day. This implies that a large amount of the remaining 11.1 t must derive from submarine groundwater discharges, which would thus represent 59% of the coastal dissolved silicate budget. Overall, it is suggested that a subterranean transport pathway must contribute considerably to silicate concentrations throughout this zone, which is characterized as permeable.

Źródło:

Oceanologia; 2018, 60, 1
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 43.

Tytuł:

Calculating the water and heat balances of the Eastern Mediterranean Basin using ocean modelling and available meteorological, hydrological and ocean data

Autorzy:

Shaltout, M.
Omstedt, A.

Powiązania:

https://bibliotekanauki.pl/articles/48470.pdf

Data publikacji:

2012

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

Mediterranean Sea
heat budget
water budget
Sicily Channel
meteorological data
hydrological data
water balance
salinity
solar radiation

Opis:

Eastern Mediterranean water and heat balances were analysed over 52 years. The modelling uses a process-oriented approach resolving the one-dimensional equations of momentum, heat and salt conservation; turbulence is modelled using a twoequation model. The results indicate that calculated temperature and salinity follow the reanalysed data well. The water balance in the Eastern Mediterranean basin was controlled by the difference between inflows and outflows through the Sicily Channel and by net precipitation. The freshwater component displayed a negative trend over the study period, indicating increasing salinity in the basin. The heat balance was controlled by heat loss from the water surface, solar radiation into the sea and heat flow through the Sicily Channel. Both solar radiation and net heat loss displayed increasing trends, probably due to decreased total cloud cover. In addition, the heat balance indicated a net import of approximately 9 W m−2 of heat to the Eastern Mediterranean Basin from the Western Basin.

Źródło:

Oceanologia; 2012, 54, 2
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 44.

Tytuł:

A deep palaeovalley in the floor of Polish Carpathian Foredeep Basin near Pilzno and its control on facies of Badenian (Middle Miocene) evaporite facies

Autorzy:

Głuszyński, A.
Aleksandrowski, P.

Powiązania:

https://bibliotekanauki.pl/articles/2059869.pdf

Data publikacji:

2016

Wydawca:

Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy

Tematy:

Carpathian foredeep
reflection seismics
deep-water evaporites
Badenian salinity crisis
Paratethys
Cenozoic

Opis:

The Pogórska Wola palaeovalley of combined tectonic and erosional origin dissects the Mesozoic floor of the Carpathian Foredeep Basin to a depth exceeding 1200 m. It formed during Paleogene times presumably due to fluvial and submarine erosion, concentrated along a local pre-Late Badenian graben system. All members of the foredeep’s Badenian-Sarmatian sedimentary fill attain distinctly greater values inside the palaeovalley than on top of elevated plateaux on palaeovalley shoulders. The fill comprises the Early to Late Badenian sub-evaporite Skawina Formation, the laterally equivalent Late Badenian evaporite Krzyżanowice and Wieliczka formations and the supra-evaporite Late Badenian to Early Sarmatian Machów Formation. Over the plateaux and in the highest palaeovalley segment, the evaporites are developed in the sulphate facies Krzyżanowice Formation, whereas in the lower palaeovalley segments chloride-sulphate facies evaporites of the Wieliczka Formation occur. The rock salt-bearing rocks are involved in thrusting and folding at the Carpathian orogenic front, which helps to assess the lateral extent of the Wieliczka Formation in seismic records. The deep palaeotopographic position of the evaporites inside the palaeovalley, combined with their lithological and sedimentary features, point to their formation via subaqueous gravity flow-driven redeposition of originally shallow-water evaporites, preferentially halite-bearing, presumably combined with precipitation from sulphate and chloride brines at the palaeovalley floor. Both the redeposited sediments and the brines must have come from the adjacent plateaux and from a thrust-sheet top basin, approaching from the south on top of the Cretaceous-Paleogene Carpathian flysch thrust wedge.

Źródło:

Geological Quarterly; 2016, 60, 2; 493--516
1641-7291

Pojawia się w:

Geological Quarterly

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 45.

Tytuł:

Adopting adequate leaching requirement for practical response models of basil to salinity

Autorzy:

Babazadeh, H.
Tabrizi, M.S.
Darvishi, H.H.

Powiązania:

https://bibliotekanauki.pl/articles/24673.pdf

Data publikacji:

2016

Wydawca:

Polska Akademia Nauk. Instytut Agrofizyki PAN

Tematy:

irrigation water
mathematical model
plant response
root zone
basil
salinity
threshold value

Źródło:

International Agrophysics; 2016, 30, 3
0236-8722

Pojawia się w:

International Agrophysics

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 46.

Tytuł:

Validation of the hydrodynamic part of the ecohydrodynamic model for the Southern Baltic

Autorzy:

Jedrasik, J.

Powiązania:

https://bibliotekanauki.pl/articles/48134.pdf

Data publikacji:

2005

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

fluctuation
water temperature
hydrodynamic model
validation
sea level
ecohydrodynamic model
salinity
Baltic Sea

Opis:

The first part of the Baltic Sea ecohydrodynamic model, based on the Princeton Ocean Model (POM), was validated by long-term observations of sea level, salinity and water temperature fluctuations. The modelled sea surface temperature (SST) fields were also compared to satellite images – satisfactory correlation coefficients were obtained. The model bias and efficiency coefficients of the modelled variables in relation to the observed values were determined. The quality of model simulations in relation to measured values was estimated with respect to spatial and seasonal variability in shallow and deep coastal waters as well as in the open sea. The results indicated the high quality of simulations by the hydrodynamic model.

Źródło:

Oceanologia; 2005, 47, 4
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 47.

Tytuł:

Processes and factors influencing the through-flow of new deepwater in the Bornholm Basin

Autorzy:

Stigebrandt, A.

Powiązania:

https://bibliotekanauki.pl/articles/49102.pdf

Data publikacji:

2017

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

hydrographic condition
Bornholm Basin
salinity
oxygen concentration
vertical stratification
deep water
Baltic Sea

Opis:

This paper is based on the idea that the hydrographical conditions in the Bornholm Basin, and any other basin, can be understood from knowledge of general hydromechanical principles and basin-specific factors. Published results on the variability of the vertical stratification are shown and discussed. Such analyses demonstrate the residence time of water at different depth levels. Different modes of currents forced by winds and by stratification gradients at open vertical boundaries are presented. Vertical mixing is discussed and published results for the Bornholm Basin are shown. An experiment demonstrates that the diffusive properties of the enclosed basin, i.e. below the sill depth of the Słupsk Furrow, can be computed quite well from the horizontal mean vertical diffusivity obtained from historical hydrographical observations. A published two decades long simulation of the vertical stratification shows that the through flow and modification of new deepwater in the Bornholm Basin can be well described based on existing knowledge regarding crucial hydromechanical processes. It also suggests, indirectly, that there should be a weak anticyclonic circulation above the sill depth, which is supported by current measurements.

Źródło:

Oceanologia; 2017, 59, 1
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 48.

Tytuł:

Microorganisms associated with charophytes under different salinity conditions

Autorzy:

Katarzyte, M.
Vaiciute, D.
Bucas, M.
Gyraite, G.
Petkuviene, J.

Powiązania:

https://bibliotekanauki.pl/articles/48156.pdf

Data publikacji:

2017

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

microorganism
aquatic macrophyte
salinity
charophyte
primary production
bacterial abundance
fungi
brackish water
fresh water
Curonian Lagoon
Baltic Sea

Opis:

Microorganisms associated with aquatic macrophytes can in various ways interact with a plant and influence its activity and vice versa. A low-salinity intrusion into freshwater environment can affect plant-microorganism interactions. In this study, effects of different salinity conditions on the abundance and community composition of associated microorganisms with charophytes in the Curonian Lagoon were assessed. From the results, we found that short term salinity changes affected the abundance of bacteria and fungi associated with charophytes, whereas no response was reflected in the taxa composition of fungi, showing that other factors could be of more importance. The increased fungi abundances and different fungi composition in August in comparison to June was probably related to senescence process of aquatic vegetation. 8 fungi taxa were isolated and identified in association with charophytes, while higher diversity was revealed by DGGE technique.

Źródło:

Oceanologia; 2017, 59, 2
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 49.

Tytuł:

Total suspended particulate matter in the Porsanger fjord (Norway) in the summers of 2014 and 2015

Autorzy:

Bialogrodzka, J.
Stramska, M.
Ficek, D.
Wereszka, M.

Powiązania:

https://bibliotekanauki.pl/articles/48580.pdf

Data publikacji:

2018

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

suspended particulate matter
Porsanger fjord
Norway
Barents Sea
global change
coastal water
water temperature
salinity
inherent optical property

Opis:

High-latitude fjords, very vulnerable to global change, are impacted by their land and ocean boundaries, and they may be influenced by terrestrial water discharges and oceanic water inputs into them. This may be reflected by temporal and spatial patterns in concentrations of biogeochemically important constituents. This paper analyses information relating to the total suspended matter (TSM) concentration in the Porsanger fjord (Porsangerfjorden), which is situated in the coastal waters of the Barents Sea. Water samples and a set of physical data (water temperature, salinity, inherent optical properties) were obtained during two field expeditions in the spring and summer of 2014 and 2015. Bio-optical relationships were derived from these measurements, enabling optical data to be interpreted in terms of TSM concentrations. The results revealed significant temporal variability of TSM concentration, which was strongly influenced by precipitation, terrestrial water discharge and tidal phase. Spatial distribution of TSM concentration was related to the bathymetry of the fjord, dividing this basin into three subregions. TSM concentrations ranged from 0.72 to 0.132 g m−3 at the surface (0–2 m) and from 0.5 to 0.67 g m−3 at 40 m depth. The average mineral fraction was estimated to be 44% at surface and 53% at 40 m.

Źródło:

Oceanologia; 2018, 60, 1
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 50.

Tytuł:

The relationship between dissolved carbohydrates and carbohydrate-degrading enzymes in the salinity gradient of the Pomeranian Bight (Southern Baltic)

Autorzy:

Nausch, M.
Kerstan, E.

Powiązania:

https://bibliotekanauki.pl/articles/47549.pdf

Data publikacji:

2003

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

polysaccharide
glucosaminidase activity
water
Baltic Sea
glucosidase activity
salinity gradient
carbohydrate
Odra River

Opis:

From 1994 to 1996 changes in the concentrations of dissolved mono- (MCHO) and total dissolved polysaccharides (TCHO) as well as the activities of carbohydratedegrading enzymes (α- and β-glucosidase, glucosaminidase) were investigated during mixing of water from the River Odra and the open Pomeranian Bight. This study addresses the question of whether their distribution was a result of physical dilution alone or if biological interactions were detectable. Within the salinity gradient, ranging from 1.9 to 7.8 PSU, TCHO declined from 13.2 μmol l−1 near the Świna mouth to 2.8 μmol l−1 after mixing. Concentrations of MCHO decreased from 3.4 μmol l−1 to 1.1 μmol l−1 but its distribution pattern varied more between summer and autumn than that of TCHO. The hydrolysis rate (Hr) by glucosidase and glucosaminidase activities was reduced from 13.9% h−1 to 0.3% h−1 and 9.9% h−1 to 0.2% h−1, respectively, and correlated with the uptake rate of glucose (To) by bacteria. In summer, the To/Hr ratio increased from about 1.2 to 29.4, mainly because of stronger decreases in Hr than in To. It was shown that the relationship between enzymatic release and uptake of carbohydrates influences the concentration of dissolved carbohydrates within the salinity gradient. Most probably, the decrease in carbohydrate-degrading enzymes is the result of reduced substrate stimulation and the lower number of particle-associated bacteria.

Źródło:

Oceanologia; 2003, 45, 3
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

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