Wszystkie pola: river sediment - Katalog OPAC zbiorów

Skocz do pozycji: 1.

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: 2.

Tytuł:: Kelvin-Helmholtz instabilities in the Colorado River Delta, Gulf of California
Autorzy:: Carbajal, N.
Vargas, J.T.
Rodriguez, J.H.G.
Montano Ley, Y.
Salas de Leon, D.A.
Powiązania:: https://bibliotekanauki.pl/articles/2078904.pdf
Data publikacji:: 2021
Wydawca:: Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:: Kelvin-Helmholtz instability
Colorado River Delta
tidal current
bottom sediment
bathymetry
suspended sediment
satellite image
Opis:: In the Colorado River Delta, the interaction of tidal currents and sea-bottom sediment formed, in geological times, large-scale seabed patterns known as sandbanks. These patterns are oriented along the delta, almost parallel to the dominant tidal flow, with the bathymetry having an undulating character across the delta. Calculations and analysis showed that the interaction of tidal currents with the bathymetry causes velocity shears, faster flowing over the ridges than in the troughs. Kelvin-Helmholtz instabilities emerge from the velocity shear, and a large amount of suspended sediment makes the instabilities visible in satellite images. The physical and dynamic conditions allowed us to find an explanation for the existence of these Kelvin-Helmholtz instabilities. Since sandbanks have been observed in different seas such as the North Sea, The Gulf of Korea, the Gulf of Khambhat in India, the Jiangsu coast in China, the Persian Gulf, and Moreton Bay in Australia, the results suggest the existence of instabilities in these areas. Satellite images, intense tidal currents, undulating topography, and suspended sediment made it possible to explain the generation and identification of KelvinHelmholtz instabilities.
Źródło:: Oceanologia; 2021, 63, 3; 321-328
0078-3234
Pojawia się w:: Oceanologia
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Bedload transport in the Vistula River mouth derived from dune migration rates, Southern Baltic Sea
Autorzy:: Lisimenka, A.
Kubicki, A.
Powiązania:: https://bibliotekanauki.pl/articles/48035.pdf
Data publikacji:: 2019
Wydawca:: Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:: sand dune
bed load transport
hydroacoustic method
sediment transport
Vistula River
Baltic Sea
bathymetry
hydrological condition
Źródło:: Oceanologia; 2019, 61, 3
0078-3234
Pojawia się w:: Oceanologia
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Horizontal and vertical distribution of lignin in surface sediments of the Gdańsk Basin
Autorzy:: Staniszewski, A.
Lejman, A.
Pempkowiak, J.
Powiązania:: https://bibliotekanauki.pl/articles/47928.pdf
Data publikacji:: 2001
Wydawca:: Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:: oxidation provenience
organic matter
surface sediment
vertical distribution
accumulation area
Baltic Sea
Vistula River
Gdansk Basin
horizontal distribution
lignin
Opis:: The aim of this study was to identify and quantify lignin transported from the River Vistula to the accumulation area in the Gdańsk Basin. Sediment samples collected along the Vistula mouth –Gdańsk Deep transect were analysed for lignin. Lignin was characterised by oxidative degradation, cupric oxide being chosen as the most suitable oxidising agent. The polar functional groups of the oxidation products were silylated and the derivatives analysed by capillary gas chromatography on fused capillary silica columns with flame ionisation detection. Lignin-derived oxidation products were quantified in the range from 3 to 20 μg g−1 dry wt. for phenolic acids and from 6 to 12 μg g−1 dry wt. for phenolic aldehydes. Differences in oxidation products contents are assigned to different lignin sources in the marine environment. The horizontal and vertical gradients of these compounds in the sediments of the Gdańsk Basin are documented. The results are discussed in terms of the origin and fate of organic matter in the Gdańsk Basin. The measured differences in quality and quantity of the identified oxidation products provide insight into diagenetic processes in the surface marine sediments.
Źródło:: Oceanologia; 2001, 43, 4
0078-3234
Pojawia się w:: Oceanologia
Dostawca treści:: Biblioteka Nauki