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Wyszukujesz frazę "Marmara Sea" wg kryterium: Temat


Wyświetlanie 1-9 z 9
Tytuł:
Variation of the cold intermediate water in the Black Sea exit of the Strait of Istanbul (Bosphorus) and its transfer through the strait
Autorzy:
Altiok, H.
Sur, H.I.
Yuce, H.
Powiązania:
https://bibliotekanauki.pl/articles/48091.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
Istanbul Strait
monthly variation
intermediate water
seasonal thermocline
temperature
Black Sea
Marmara Sea
two-layer flow system
saline water
Opis:
The cold intermediate water (CIW, T<8◦C) entering the Strait of Istanbul and its variation along the strait have been studied by using monthly conductivitytemperature- depth (CTD) data sets collected during the period from 1996 to 2000. In the northern exit of the strait, CIW is located between the seasonal thermocline and Mediterranean water originating from the lower layer of the Sea of Marmara. The thickness of CIW decreases from April to October. In the Strait of Istanbul, CIW is observed as a layer of temperature <14◦C. The thickness of this modified cold intermediate water flowing southwards with the upper layer decreases, while its temperature increases along the strait due to mixing with adjacent water. In the southern exit of the strait, the modified cold intermediate water is observed during the period from May to October. If CIW exists in the Black Sea exit region of the strait, modified cold water is found in the Marmara exit region during the same period. The distribution of CIW in the Strait of Istanbul contributes to our understanding of the dynamics of the strait, especially in the summer months.
Źródło:
Oceanologia; 2012, 54, 2
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The determination of total protein, total soluble carbohydrate and pigment contents of some macroalgae collected from Gemlik-Karacaali (Bursa) and Erdek-Ormanli (Balikesir) in the Sea of Marmara, Turkey
Autorzy:
Dere, S.
Dalkiran, N.
Karacaoglu, D.
Yildiz, G.
Dere, E.
Powiązania:
https://bibliotekanauki.pl/articles/47690.pdf
Data publikacji:
2003
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
pigment
seaweed
Phaeophyta
chlorophyll b
Marmara Sea
Turkey
carotenoid
Chlorophyta
soluble carbohydrate
macroalga
chlorophyll c
Rhodophyta
chlorophyll a
Gemlik-Karacaali
protein
Erdek-Ormanli
Opis:
In this study, 12 taxa from the Chlorophyta, Phaeophyta and Rhodophyta were collected from different depths at Gemlik-Karacaali and Erdek-Ormanlı. A total of 175 specimens from these divisions were used to determine Total Protein (TP), Total Soluble Carbohydrate (TSCH) and Chlorophyll a (Chl a), Chlorophyll b (Chl b), Chlorophyll c (Chl c), total carotenoid (Car) contents and Chl b/Chl a, Chl c/Chl a, Car/Chl a, Car/Chl b, Car/Chl c ratios. TP, TSCH and pigment contents varied significantly with respect to the algal taxa, stations and depth distribution. In addition, individual differences were important in all of the measured parameters. The maximum TP contents (0.94%–31.03%) were determined in some of the Rhodophyta. In some green seaweeds belonging to the genus Ulva L., the TP content was determined between 2.9%–28.1%. Lower TP contents were determined in Cystoseira barbata (Good) C. Agardh (1.1%–4.3%). In contrast to TP contents, TSCH values were very low; maximum TSCH were determined in Ulva species, as were protein contents. In conclusion, the variations in TP, TSCH and pigment in 12 taxa of macroalgae were analysed according to station, depth, and environment.
Źródło:
Oceanologia; 2003, 45, 3
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Red tides of the dinoflagellate Noctiluca scintillans associated with eutrophication in the Sea of Marmara (the Dardanelles, Turkey)
Autorzy:
Turkoglu, M.
Powiązania:
https://bibliotekanauki.pl/articles/48916.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
Marmara Sea
Dardanelles
Turkey
Noctiluca scintillans
vertical distribution
red tide
dinoflagellate
eutrophication
marine plankton
bioluminescence
chlorophyll a
phytoplankton
quantitative analysis
Źródło:
Oceanologia; 2013, 55, 3
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimum site selection for oil spill response center in the Marmara Sea using the AHP-TOPSIS method
Autorzy:
Koseoglu, B.
Buber, M.
Toz, A. C.
Powiązania:
https://bibliotekanauki.pl/articles/205446.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
oil spill
MCDM
multi-criteria decision-making
Marmara Sea
AHP-TOPSIS
Response Center
Opis:
The aim of this study is to determine the optimum location for an oil spill response center in the Marmara Sea. The analytic hierarchy process (AHP) and technique for the order of preference by similarity to ideal solution (TOPSIS) method as the most preferred multi-criteria decision-making (MCDM) technique were used. The results reveal that the LOC criterion and PRA sub-criterion have the highest effects on the optimal location selection of the oil spill response center. According to the results, the most suitable location for the oil spill response center in the region is Izmit Bay Entrance. This location has been proposed for the response headquarters to manage the whole operation with the assistance of auxiliary installations in the area. In this study, only technical and operational variables are taken into account, but political and administrative criteria are excluded.
Źródło:
Archives of Environmental Protection; 2018, 44, 4; 38-49
2083-4772
2083-4810
Pojawia się w:
Archives of Environmental Protection
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Intruder in the Harem, or Captain Martin Eric Nasmith’s Oriental Adventures
Autorzy:
Nykiel, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/30146175.pdf
Data publikacji:
2022
Wydawca:
Uniwersytet Szczeciński. Wydawnictwo Naukowe Uniwersytetu Szczecińskiego
Tematy:
Martin Eric Dunbar-Nasmith
Dardanelles
Gallipoli
Sea of Marmara
"E11"
WW1
Dardanele
Morze Marmara
pierwsza wojna światowa
Opis:
Niniejszy artykuł poświęcony jest początkowemu okresowi kariery adm. Martina Erica Dunbar-Nasmitha (1883–1965) i stanowi próbę podsumowania jego osiągnięć podczas trzech podwodnych patroli w Dardanelach i na Morzu Marmara w 1915 r. Misje te przyniosły mu miano najskuteczniejszego brytyjskiego “podwodniaka” pierwszej wojny światowej. W anglosaskiej historiografii wszystkie publikacje poświęcone działaniom Nasmitha na wodach tureckich stanowią jednostronną narrację, opartą wyłącznie na źródłach brytyjskich. Autor podjął więc pierwszą w zachodniej historiografii próbę skonfrontowania brytyjskiego i tureckiego punktu widzenia. Podobnej konfrontacji podejmowano się kilkukrotnie w Turcji, ale jej efekty nie są powszechnie znane zachodnim historykom i w kilku przypadkach budzą zastrzeżenia. Decyzja o podjęciu się niniejszego wyzwania wynika ze świadomości tego, że ocena sytuacji dokonywana przez Nasmitha, w chwili, gdy osobiście obserwował efekty swych ataków, nie mogła być pełna i całkowicie obiektywna. Nie miał prawa wiedzieć, że niektóre z zatopionych przez niego na płytkich wodach przybrzeżnych jednostek zostały przez Turków podniesione z dna i przywrócone do służby. Artykuł ten stanowi szczegółowe omówienie ataków na osmańskie okręty wojenne, statki handlowe o napędzie parowym i cele lądowe, podjętych przez Nasmitha podczas wszystkich trzech patroli okrętu podwodnego “E11.” W rezultacie swoich badań autor zwraca uwagę na to, iż bilans drugiego patrolu, zarówno pod względem strat zadanych osmańskiej marynarce wojennej, jak i flocie transportowej był bez porównania lepszy niż pierwszego (za który Nasmith odznaczony został Krzyżem Wiktorii). W przypadku strat floty transportowej łączny tonaż definitywnie zatopionych jednostek o napędzie parowym był o ponad 470 procent większy. Choć Nasmith twierdził, że podczas wszystkich trzech patroli zatopił co najmniej 122 osmańskie jednostki pływające, to według źródeł tureckich liczba okrętów i parowców, które definitywnie unieszkodliwił nie przekroczyła piętnastu.
The article is devoted to the early phase of the career of Martin Eric Nasmith (1883–1965) and is an attempt to summarise his achievements during three underwater patrols in the Dardanelles and the Sea of Marmara in 1915. Those missions brought him the appellation of the most effective British submariner of WW1. In Anglophone historiography, all the books and articles related to this subject constitute a one-sided narrative based solely on British sources. Thus, the author has made the first attempt in western historiography to compare the British and Turkish points of view. Although a few such efforts have been made in Turkey, their results are not widely known to western historians, and in some cases, they raise objections. The decision to take up this challenge came from an awareness that Nasmith’s view of the situation at the moment when he was personally observing the effects of his attacks could not be complete and entirely objective. He could not have known that some of the vessels he had sunk in shallow coastal waters were salvaged by the Turks and restored to service. The article gives detailed coverage of the attacks conducted by Nasmith on Ottoman warships, steam-powered merchant ships and land targets, during all three patrols of the “E11” submarine. As a result of his research, the author was able to draw attention to the fact that the results of “E11”’s second patrol were incomparably more favourable than those of the first one (for which Nasmith was awarded the Victoria Cross), both in terms of losses inflicted on the Ottoman Navy and on the transport fleet. In the case of the latter, the total tonnage of definitively sunken steam-powered vessels was more than 470 percent higher. While Nasmith claimed that he had sunk at least 122 Ottoman vessels during all three patrols, Turkish sources indicate that the total number of warships and steam-powered transport ships definitively destroyed by him did not exceed fifteen.
Źródło:
Studia Maritima; 2022, 35; 41-84
0137-3587
2353-303X
Pojawia się w:
Studia Maritima
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Estimation of standard duration maximum rainfall by using regression models
Autorzy:
Yerdelen, Cahit
Asikoglu, Ömer Levend
Abdelkader, Mohamed
Eris, Ebru
Powiązania:
https://bibliotekanauki.pl/articles/1841938.pdf
Data publikacji:
2021
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
Eastern Black Sea Region
Marmara Region
regression model
standard duration maximum rainfall
temporal distribution of maximum daily rainfall
Opis:
Gauging stations of meteorological networks generally record rainfall on a daily basis. However, sub-daily rainfall observations are required for modelling flood control structures, or urban drainage systems. In this respect, determination of temporal distribution of daily rainfall, and estimation of standard duration of rainfall are significant in hydrological studies. Although sub-daily rainfall gauges are present at meteorological networks, especially in the developing countries, their number is very low compared to the gauges that record daily rainfall. This study aims at developing a method for estimating temporal distribution of maximum daily rainfall, and hence for generating maximum rainfall envelope curves. For this purpose, the standard duration of rainfall was examined. Among various regression methods, it was determined that the temporal distribution of 24-hour rainfall successfully fits the logarithmic model. The logarithmic model’s regression coefficients (named a and b) were then linked to the geographic and meteorological characteristics of the gauging stations. The developed model was applied to 47 stations located at two distinct geographical regions: the Marmara Sea Region and Eastern Black Sea Region, Turkey. Various statistical criteria were used to test the method's accuracy, and the proposed model provided successful results. For instance, the RMSE values of the regression coefficients a and b in Marmara Regions are 0.004 and 0.027. On the other hand, RMSE values are 0.007 and 0.02 for Eastern Black Sea Region.
Źródło:
Journal of Water and Land Development; 2021, 50; 281-288
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Calibration of the Benthic Foraminiferal Oxygen Index in the Marmara Sea
Autorzy:
Kamiński, M. A.
Powiązania:
https://bibliotekanauki.pl/articles/2060479.pdf
Data publikacji:
2012
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
foraminifera
oxygen
ecology
Benthic Foraminiferal Oxygen Index (BFOI)
BFOI
Marmara Sea
Opis:
Benthic foraminifera (total assemblages) were studied from 30 sea-floor samples collected along a bathymetric transect on the southern shelf of the Marmara Sea from depths of 15–350 m. At each station, Kaiho’s Benthic Foraminiferal Oxygen Index (BFOI) was calculated based on species abundances using the methods outlined by Kaiho (1994). The calculated BFOI values were converted to analogue oxygen values, and calibrated to the dissolved oxygen values measured 1 m above the sea floor at each station. In the surface waters and central part of the Marmara Shelf transect, the BFOI values reproduce the measured dissolved oxygen values with a remarkable degree of accuracy. Beneath the pycnocline at depths of 30 to 75 m, the BFOI underestimated the measured oxygen values. This discrepancy is attributed to seasonally higher summer oxygen values within the chlorophyll maximum, corresponding to the position of the Mediterranean Inflow Water (MIW) present during summer. In the deeper part of the transect (below 140 m), BFOI values overestimated the measured oxygen values. This discrepancy is attributed to the presence of denser MIW that cascades down the submarine canyon beneath the Marmara ship channel during winter, ventilating the deep Marmara Sea. The BFOI accurately points out the seasonal differences in the position and depth of the MIW in the southwestern Marmara Sea. The BFOI likely reflects the longer-term oxygen values averaged over the span of many years.
Źródło:
Geological Quarterly; 2012, 56, 4; 757--764
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Bio-optical trends of seas around Turkey: An assessment of the spatial and temporal variability
Autorzy:
Bengil, F.
Mavruk, S.
Powiązania:
https://bibliotekanauki.pl/articles/48746.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
chlorophyll a
coloured dissolved organic matter
optical property
backscattering coefficient
marine ecosystem
spatial variability
temporal variability
bio-optical property
Aegean Sea
Marmara Sea
Black Sea
Turkey
Źródło:
Oceanologia; 2018, 60, 4
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of recent and chalcolithic period environmental pollution using Mytilus galloprovincialis Lamarck, 1819 from Yarimburgaz Cave, the Northern Marmara Sea and Bosphorus coasts
Autorzy:
Barut, I.F.
Meric, E.
Yokes, M.B.
Powiązania:
https://bibliotekanauki.pl/articles/47682.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
geochemistry
Mytilus galloprovincialis
shell
monitoring
metal pollution
environment pollution
Yarimburgaz Cave
Marmara Sea
Bosphorus coast
Źródło:
Oceanologia; 2016, 58, 2
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-9 z 9

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