Temat: sea-level - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Atlantic meridional overturning circulation stable over the last 150 years
Autorzy:: Parker, Albert
Ollier, Clifford
Powiązania:: https://bibliotekanauki.pl/articles/1051199.pdf
Data publikacji:: 2019-09-30
Wydawca:: Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:: sea level rise
sea level acceleration
Atlantic Meridional Overturning Circulation
Opis:: The Atlantic Meridional Overturning Circulation (AMOC) describes the northward flow of warm, salty water in the upper layers, and the southward flow of colder water in the deep Atlantic layers. AMOC strength estimates at 41°N latitude based on satellite sea surface height (SSH), and ARGO ocean temperature, salinity and velocity, and finally the difference in between the absolute mean sea levels (MSL) of the tide gauges of The Battery, New York, 40.7°N latitude, and Brest, 48.3°N latitude. Results suggest that the AMOC has been minimally reducing but with a positive acceleration since 2002, has been marginally increasing but with a negative acceleration since 1993, and has not been reducing but only oscillating with clear periodicities up 18 years, 27 years and about 60 years since 1856.
Źródło:: Quaestiones Geographicae; 2019, 38, 3; 31-40
0137-477X
2081-6383
Pojawia się w:: Quaestiones Geographicae
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Estimation and impacts of sea level rise in Santos Port and Adjacent Areas (Brazil)
Autorzy:: Alfredini, P.
Arasaki, E.
Powiązania:: https://bibliotekanauki.pl/articles/117075.pdf
Data publikacji:: 2018
Wydawca:: Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:: Sea Level
Port of Santos
Brazilian Coast
Santos Bay
Mean Sea Level (MSL)
Sea Level Rise (SLR)
tide gauge
PIANC
Opis:: Santos Port is located in Brazilian coast, in an estuarine area inside Santos Bay named Baixada Santista. The currents behavior is forced by tides. The resulting tidal level variability (high tide, mean sea level and low tide) recorded from Santos Dock Company tide gauge (1940 to 2014) shows a consistent increasing trend. The estimation about the magnitude of mean sea level rise (MSLR) in recommendations, guidelines or requirements issued by different countries and agencies from 1990 provide examples of different approaches used around the world in comparison with the local trends obtained for Santos Port. It is concluded that MSLR will have a considerable impact upon the port and adjacent areas, with approximately 1.0 m rise estimated from 1990 to 2100. Baixada Santista is a lowland situated a few meters upper from the sea level and some areas are possible to be submerged in the end of this century. Not only the wetlands of mangroves will be affected, but also the infrastructures, residential zones and the port will face problems. The major SLR impacts upon port operation will be the reduction of freeboard of the quays, flooding of storage yards (and other low storage areas) and of the internal transport tracks or rails. Also the increasing sedimentation in the nautical areas of access channels, turning basins and berths, will induce more maintenance dredging.
Źródło:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2018, 12, 4; 739-744
2083-6473
2083-6481
Pojawia się w:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Predicting the Extent of Inundation due to Sea-Level Rise: Al Hamra Development, Ras Al Khaimah, UAE. A Pilot Project
Autorzy:: Arthur, Robert M.
Garland, G. G.
Powiązania:: https://bibliotekanauki.pl/articles/1035928.pdf
Data publikacji:: 2016
Wydawca:: Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:: Sea Level Rise
GIS
LiDAR
Opis:: As new information is received, predictions of sea-level rise resulting from global warming continue to be revised upwards. Measurements indicate that the rise in sea-level is continuing at, or close to, the worst case forecasts (Kellet et al. 2014). Coastal areas are coming under increasing risk of inundation and flooding as storms are predicted to increase in frequency and severity, adding to the risk of inundation due to higher sea levels. Stakeholders, government agencies, developers and land owners require accurate, up to date information to be able to protect coastal areas. Geographic Information Systems (GIS) along with accurate remote sensing technologies such as LiDAR provides the best means for delivering this information. Using these technologies, this paper predicts the risk posed to a large multi-use development in the emirate of Ras Al Khaimah, UAE. This development, Al Hamra Village, is situated on the coast of the Arabian Gulf. Al Hamra’s physical relationship to the Gulf is in common with other developments in Ras Al Khaimah in its and for this reason has been used as a pilot project. The resulting GIS model shows that Al Hamra is indeed at risk from predicted flood events. How this information can be used as a planning tool for numerous strategies is discussed in this paper.
Źródło:: Miscellanea Geographica. Regional Studies on Development; 2016, 20, 2; 25-31
0867-6046
2084-6118
Pojawia się w:: Miscellanea Geographica. Regional Studies on Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: An attempt to resolve the partly conflicting data and ideas on the ancylus-littorina transition
Autorzy:: Björck, S.
Andrén, T.
Bo Jensen, J.
Powiązania:: https://bibliotekanauki.pl/articles/1204980.pdf
Data publikacji:: 2008
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: sea level
Ancylus Lake
Littorina Sea
Baltic Sea
Opis:: Lagoon gyttja layers occurring in anomalously high position (up to 2.5 m above the present-day sea level) The transition phase between the Ancylus and Littorina stages of the Baltic Sea is an old controversial topic. With the newest data available we try to reach a compromise between the "dramatic" model, including a sudden and large drainage of the Ancylus Lake, and the idea of a non-existing Ancylus drainage through Denmark. This new model includes a minor, perhaps 5 m, sudden erosion and forced regression slightly before 10,000 cal. yrs BP. This was followed by a 200–300 yr long period when the outlet through Denmark and Great Belt (Dana River) was characterized by a variable fluvial environment creating fluvial, levée and lacustrine deposits. During this period of rapidly rising sea level, we postulate that the gradient between the Ancylus Lake and sea level gradually decreased from some 5 m until sea level had reached the Ancylus and Darss Sill level. After this point in time occasional pulses of marine water could easier enter into the Baltic basin, which is seen as brackish pulses as early as 9800 cal. yrs BP in records from the Bornholm and Gotland basins, but also from Blekinge. It would, however, take another c. 1500 years before the Öresund threshold was flooded by the rising sea level, causing a significant rise in salinity sometime between 8500–8000 cal. yrs BP, and marking the true onset of the Littorina Sea.
Źródło:: Polish Geological Institute Special Papers; 2008, 23; 21-26
1507-9791
Pojawia się w:: Polish Geological Institute Special Papers
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: The role of neo-tectonics in the variation of the relative mean sea level throughout the last 6000 years on the Taman Peninsula (Black Sea, Azov Sea, Russia)
Autorzy:: Fouache, E.
Porotov, A.
Müller, C.
Gorlov, Y.
Powiązania:: https://bibliotekanauki.pl/articles/1187360.pdf
Data publikacji:: 2004
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: sea level
geoarchaeology
neotectonics
Holocene
Black Sea
Russia
Opis:: Sediments, carbon-datings on seashells, allow us to reconstruct the evolution of the average sea level for some 6000 years on the Taman Peninsula. The current sea level, regionally, appears to be the highest level ever reached on the peninsula. It seems that for the Anapa area and Tchouchtchka Spit area it is possible to propose a sea level curve characterised by a slow, continuous rising during the past 6000 years. On the Taman Peninsula itself, the sedimentary record of this slow ascent has been distorted by a heavy tectonic subsidence. We have identified this neo-tectonic subsidence effect on at least two areas on the peninsula. The south of the peninsula, Burgaz Spit and Vityazevos Lagoon, is the most affected area. The Taman Gulf is an intermediate area. The tectonic subsidence is particularly noticeable from 1500 to 500 BC, which we believe to have been misinterpreted until now, and to be at the origin of the notion of "Phanagorian Regression".
Źródło:: Polish Geological Institute Special Papers; 2004, 11; 47-57
1507-9791
Pojawia się w:: Polish Geological Institute Special Papers
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Vulnerability and adaptation of Polish coast to impact of sea-level rise (SLR)
Autorzy:: Pruszak, Z.
Powiązania:: https://bibliotekanauki.pl/articles/241039.pdf
Data publikacji:: 2001
Wydawca:: Polska Akademia Nauk. Instytut Budownictwa Wodnego PAN
Tematy:: vulnerability
Polish coast
sea level rise (SLR)
Opis:: The paper presented contains results of the latest studies on assessment of the vulner-ability of the Polish coast to sea-level rise, thus providing the synthesis, development and update of all current works in this field. Apart from a general description of the basic physical and socio-economic coastal characteristics, boundary conditions were defined for further studies on Poland's vulnerability to ASLR. For each of the four areas, into which the Polish coastal zone was divided, a synthesis of threats and vul-nerability to the expected SLR was carried out, taking into account characteristic elements and features of the regions. Basing upon two extreme scenarios of sea-level rise, i.e. ASLR1 with 30 cm/100 yrs (optimistic variant) and ASLR2 with 100 cm/100 yrs (pessimistic variant), the assessment and cost calculation of total protection measures of the endangered areas in the coastal zone related to their capital value to be lost was executed. Finally, it was found that the protective investments should mainly be undertaken on the west and east coasts, where economically justified. Because of limited funds, it is necessary to concentrate on particularly important and simultaneously strongly threatened regions. The detailed analysis of costs implies that the activities should be undertaken first on the coastal segments adjacent to Gdańsk and Szczecin, where vast agglomerations are located, with concentrated industry and related infrastructure, as well as centres of science and culture.
Źródło:: Archives of Hydro-Engineering and Environmental Mechanics; 2001, 48, 2; 73-90
1231-3726
Pojawia się w:: Archives of Hydro-Engineering and Environmental Mechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Effects of global climate oscillations on intermonthly to interannual variability of sea levels along the English Channel Coasts (NW France)
Autorzy:: Turki, I.
Massei, N.
Laignel, B.
Shafiei, H.
Powiązania:: https://bibliotekanauki.pl/articles/2079277.pdf
Data publikacji:: 2020
Wydawca:: Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:: sea level
interannual variability
storm
atmospheric circulation
climatic oscillation
sea surface temperature
sea level pressure
North Atlantic oscillation
English Channel
Opis:: This work examines the multiscale variability in sea level along the English Channel coasts (NW France) using a wavelet multiresolution decomposition of water level values and climate oscillations in order to gain insights in the connection between the global atmospheric circulation and the local-scale variability of the monthly extreme surges. Changes in surges have exhibited different oscillatory components from the intermonthly (~3–6-months) to the interannual scales (~1.5-years, ~2–4-years, ~5–8-years) with mean explained variances of ~40% and ~25% of the total variability respectively. The correlation between the multiresolution components of surges and 28 exceptional stormy events with different intensities has revealed that energetic events are manifested at all timescales while moderate events are limited to short scales. By considering the two hypotheses of (1) the physical mechanisms of the atmospheric circulation change according to the timescales and (2) their connection with the local variability improves the prediction of the extremes, the multiscale components of the monthly extreme surges have been investigated using four different climate oscillations (Sea Surface Temperature (SST), Sea-Level Pressure (SLP), Zonal Wind (ZW), and North Atlantic Oscillation (NAO)); results show statistically significant correlations with ~3–6-months, ~1.5-years, ~2–4-years, and ~5–8-years, respectively. Such physical links, from global to local scales, have been considered to model the multiscale monthly extreme surges using a time-dependent Generalized Extreme Value (GEV) distribution. The incorporation of the climate information in the GEV parameters has considerably improved the fitting of the different timescales of surges with an explained variance higher than 30%. This improvement exhibits their nonlinear relationship with the large-scale atmospheric circulation.
Źródło:: Oceanologia; 2020, 62, 2; 226-242
0078-3234
Pojawia się w:: Oceanologia
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: A Required Data Span to Detect Sea Level Rise
Autorzy:: Niedzielski, T.
Kosek, W.
Powiązania:: https://bibliotekanauki.pl/articles/117439.pdf
Data publikacji:: 2008
Wydawca:: Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:: Sea Level
Meteorological Aspects
Oceanography
Sea Level Anomalies (SLA)
Seasonal Oscillations
Climate Theory
Climate Changes
Prediction Technique
Opis:: Altimetric measurements indicate that the global sea level rises about 3 mm/year, however, in various papers different data spans are adopted to estimate this value. The minimum time span of TOPEX/Poseidon (T/P) and Jason-1 (J-1) global sea level anomalies (SLA) data required to detect a statisti-cally significant trend in sea level change was estimated. Seeking the trend in the global SLA data was per-formed by means of the Cox-Stuart statistical test. This test was supported by the stepwise procedure to make the results independent of the starting data epoch. The probabilities of detecting a statistically significant trend within SLA data were computed in the relation with data spans and significance levels of the above-mentioned test. It is shown that for the standard significance level of 0.05 approximately 5.5 years of the SLA data are required to detect a trend with the probability close to 1. If the seasonal oscillations are removed from the combined T/P and J-1 SLA data, 4.3 years are required to detect a statistically significant trend with a probability close to 1. The estimated minimum time spans required to detect a trend in sea level rise are ad-dressed to the problem of SLA data predictions. In what follows, the above-mentioned estimate is assumed to be minimum data span to compute the representative sample of SLA data predictions. The forecasts of global mean SLA data are shown and their mean prediction errors are discussed.
Źródło:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2008, 2, 2; 143-147
2083-6473
2083-6481
Pojawia się w:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Prediction of Wetland Loss Due to Sea Level Rise Around the Largest Port Area in Latin America
Autorzy:: Alfredini, P.
Arasaki, E.
Powiązania:: https://bibliotekanauki.pl/articles/2063962.pdf
Data publikacji:: 2021
Wydawca:: Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:: oceanographic phenomenon
wetland loss
sea level
sea level rise
santos bay
Brazilian Coast
Port of Santos
Latin America
Opis:: Santos’s mangroves are important wetlands located in Brazilian coast, a fishing area inside Santos Bay. The overall healthy mangroves area along the riparian zones influencing the Santos Estuary is around 25.20 km2. The resulting tidal level recorded from Port of Santos tide gauge (from 1940 to 2014), also located in the estuary, shows consistent increasing trend. One healthy mangrove was selected for a previous qualitative biological survey to better understand the characteristics of the habitat to be monitored and evaluated about the possible impacts in the next decades. The mangroves situated a few meters upper from the sea level and some other areas have the risk to be submerged till 2085 which will seriously affect the riparian mangroves biome. Indeed, the mangrove area is confined downward by the low tide level and upward by existing structures, roads, rural and urban areas.
Źródło:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2021, 15, 3; 677--682
2083-6473
2083-6481
Pojawia się w:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Testate Amoebae as Proxy for Water Level Changes in a Brackish Tidal Marsh
Autorzy:: Ooms, Marijke
Beyens, Louis
Temmerman, Stijn
Powiązania:: https://bibliotekanauki.pl/articles/763455.pdf
Data publikacji:: 2012
Wydawca:: Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
Tematy:: Testate amoebae, elevation, sea-level change, water-level change, estuary
Opis:: Few studies have examined testate amoebae assemblages of estuarine tidal marshes. This study investigates the possibility of using soil testate amoebae assemblages of a brackish tidal marsh (Scheldt estuary, Belgium) as a proxy for water level changes. On the marsh surface an elevation gradient is sampled to be analyzed for testate amoebae assemblages and sediment characteristics. Further, vegetation, flooding frequency and soil conductivity have been taken into account to explain the testate amoebae species variation. The data reveal that testate amoebae are not able to establish assemblages at the brackish tidal marsh part with flooding frequencies equal to or higher than 36.5%. Further, two separate testate amoebae zones are distinguished based on cluster analysis. The lower zone’s testate amoebae species composition is influenced by the flooding frequency (~ elevation) and particle size, while the species variability in the higher zone is related to the organic content of the soil and particle size. These observations suggest that the ecological meaning of elevation shifts over its range on the brackish tidal marsh Testate amoeba assemblages in such a brackish habitat show thus a vertical zonation (RMSEP: 0.19 m) that is comparable to the vertical zonation of testate amoebae and other protists on freshwater tidal marshes and salt marshes.
Źródło:: Acta Protozoologica; 2012, 51, 3
1689-0027
Pojawia się w:: Acta Protozoologica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: The completeness of the fossil record of plesiosaurs, marine reptiles from the Mesozoic
Autorzy:: TUTIN, SAMUEL L.
BUTLER, RICHARD J.
Powiązania:: https://bibliotekanauki.pl/articles/945627.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:: plesiosauria
ichthyosauria
diversity
macroevolution
sea level
jurassic
cretaceous
Opis:: Plesiosaurs were a highly successful group of marine reptiles occurring worldwide in the Jurassic and Cretaceous, but to date few studies have focused on their preservation through time. Here, we conduct the first detailed assessment of the quality of the plesiosaur fossil record. Data was compiled for 178 specimens representing 114 valid species. For each species we calculated the character completeness metric (CCM: percentage of phylogenetic characters from a cladistic dataset that can be scored for that species) and the skeletal completeness metric (SCM: percentage of the overall skeleton that is preserved for that species). Average CCM and SCM values were calculated for individual geological stages. A strong significant positive correlation was recovered between CCM and SCM, suggesting that the two metrics are recording the same signal, at least for this clade. Although a significant correlation between changes in sea level and changes in plesiosaur completeness was not recovered, an underlying negative relationship may be present but obscured by poorly sampled time bins. Plesiosaur completeness though time is not significantly correlated with that for contemporary terrestrial groups (sauropods, pterosaurs, birds), but is significantly correlated with that for ichthyosaurs, suggesting common controls on skeletal preservation in the marine realm. Significantly higher median completeness values in plesiosaurs and ichthyosaurs than in contemporary terrestrial groups support the hypothesis that the marine tetrapod fossil record is more complete than that of terrestrial tetrapods. A collector’s curve for plesiosaurs shows a generally slow constant rate of discovery from the latter part of the 19th century until the 1990s, at which point the rate of discovery increased substantially and shows no sign of slowing. A significant but very weak negative correlation between SCM and the year in which a taxon was named suggests a weak tendency for more recently named species to have less complete skeletons.
Źródło:: Acta Palaeontologica Polonica; 2017, 62, 3; 563-573
0567-7920
Pojawia się w:: Acta Palaeontologica Polonica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: PACIFIC SEA LEVELS RISING VERY SLOWLY AND NOT ACCELERATING
Autorzy:: Parker, Albert
Ollier, Clifford
Powiązania:: https://bibliotekanauki.pl/articles/1051047.pdf
Data publikacji:: 2019-03-31
Wydawca:: Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:: sea level rise
tide gauges
subsidence
Pacific Ocean
Opis:: Over the past decades, detailed surveys of the Pacific Ocean atoll islands show no sign of drowning because of accelerated sea-level rise. Data reveal that no atoll lost land area, 88.6% of islands were either stable or increased in area, and only 11.4% of islands contracted. The Pacific Atolls are not being inundated because the sea level is rising much less than was thought. The average relative rate of rise and acceleration of the 29 long-term-trend (LTT) tide gauges of Japan, Oceania and West Coast of North America, are both negative, −0.02139 mm yr−1 and −0.00007 mm yr−2 respectively. Since the start of the 1900s, the sea levels of the Pacific Ocean have been remarkably stable.
Źródło:: Quaestiones Geographicae; 2019, 38, 1; 179-184
0137-477X
2081-6383
Pojawia się w:: Quaestiones Geographicae
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Consequences of global warming in cryosphere
Autorzy:: Jania, Jacek A.
Powiązania:: https://bibliotekanauki.pl/articles/703326.pdf
Data publikacji:: 2008
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: cryosphere
climate warming
sea ice
glacier dynamics
sea level rise
Opis:: Scale of changes of particular components of cryosphere due to global warming is presented. Cryosphere diminishes its spatial extend and the total volume of all kinds of ice is reduced. The Arctic sea ice cover has recently diminished most intensely. It reached its minimal extend (4.28 mln km2) in September 2007. One expects accelerated disintegration of sea ice of the Arctic as a result of coadjuvancy of oceanic and atmospheric factors. In consequence, more intense warming of climate coming from warmer ocean water is predicted in the Arctic basin. Increase of melting of glaciers during the last three decades results in decrease of their extend and thickness. Additionally, more meltwater is reaching bed of glaciers and is accelerating their flow velocity due to faster basal sliding. Such processes result in more intense breaking off the icebergs from fronts of glaciers terminating into the sea. Dynamic response of Greenland outlet tidewater glaciers has been detected after 2000 and it affects significantly global ocean level rise by ca 0.5 mm/yr. The Antarctic Ice Sheet is actually only insignificantly reacting to global warming. The paper discusses possible scenarios of the consequences of dynamic reaction of the West Antarctic Ice Sheet for increasing warming and slow sea level rise. Permafrost is reacting in a less distinct but detectable scale. The paper is giving not only description of consequences of climate warming for cryosphere, important impact of its spatial extend and features on atmosphere and oceans are considered either. A series of positive feedacks between warming climate and cryosphere are listed. Described evolution of cryosphere is suggesting that distinct trend of climate warming is irreversible for the next centuries. One can also expect systematic rise of global ocean level as the consequence of glacier melting and dynamic transfer of ice masses based on land to the sea.
Źródło:: Nauka; 2008, 3
1231-8515
Pojawia się w:: Nauka
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Review and reinterpretation of the pollen and diatom data from the deposits of the Southern Baltic lagoons
Autorzy:: Miotk-Szpiganowicz, G.
Zachowicz, J.
Uścinowicz, Sz.
Powiązania:: https://bibliotekanauki.pl/articles/1205002.pdf
Data publikacji:: 2008
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: pollen and diatom analyses
lagoons
sea-level changes
Baltic Sea
Opis:: According to their origin, geomorphology and hydrology, the fresh/brackish-water bays and coastal lakes of the Southern Baltic coast can be treated as lagoons. They developed at the time of and as a result of the Atlantic (Litorina) transgression of the Southern Baltica. There are many publications about the origin and evolution of the lagoons and lakes along the Polish coast of the Southern Baltic (e.g. Przybyłowska-Lange, 1973a, b, 1974, 1979, 1981; Zaborowska, 1977; Zachowicz, 1977, 1985; Wypych, 1980a, b; Zachowicz et al., 1982; Bogaczewicz-Adamczak, Miotk, 1985a, b; Dąbrowski et al., 1985; Zachowicz, Zaborowska, 1985; Borówka et al., 2001a, b, 2002). Nevertheless, the origin of the lagoons has not been fully explained. In the light of present-day information the results of earliest investigations often need to be reinterpreted. The aim of this work was the correlation of the published and unpublished pollen and diatom diagrams from Late Pleistocene and Holocene sediments of the Southern Baltic lagoons, and their relation with radiocarbon dating. The pollen and diatom diagrams from the area of north-east Germany and the Curonian Lagoon (Kabailiene., 1999; Jahns, 2000; Kaiser et al., 2000; Endtmann, 2002; Bitinas et al., 2002) have been used for comparison. For the palynological sites, the local pollen assemblage zones (L PAZ) have been identified according to Janczyk-Kopikowa (1987). Comparison of the biostratigraphical data allowed us to define the approach time of the formation of the lagoons in their present-day position on the coast as well as to determine the periods of an accelerated sea-level rise and increased frequency of storm surges (so-called marine transgression phases) when the investigated areas had been under the direct influence of the sea. Such influences are visible about 7000, 6000, 5000 and 4000 years BP. This period of marine influences, about 1000-year long, corresponds very well to the same period of climate oscillations mentioned by Stuiver and Braziunas (1993), Stuiver et al. (1995) and Chapman and Shackelton (2000). The influence of the sea in the Post-Litorina period was associated mainly with the inflow of sea water through more or less developed barriers, so they are not synchronous.
Źródło:: Polish Geological Institute Special Papers; 2008, 23; 45-70
1507-9791
Pojawia się w:: Polish Geological Institute Special Papers
Dostawca treści:: Biblioteka Nauki