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Wyszukujesz frazę "shallow sea" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Some notes on safety measures when approaching port of Świnoujście
Autorzy:
Szymoński, M.
Powiązania:
https://bibliotekanauki.pl/articles/116241.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
safety at sea
safety measures
port of Swinoujscie
Pomeranian Bay
ferry
ship handling
shallow water
hydrodynamic effects
Opis:
The paper describes new directions in which the safety of navigation in Pomeranian Bay (Poland) became into a new era since the LNG Terminal in port of Świnoujście begun to attend to a large gas tankers at around 320 meters length, 50 meters breadth, and draught of 12.5 meters. For the safety of naviga-tion in Pomeranian Bay, the Maritime Administration has modified the traffic regulations, directing the ship's traffic to the zones outside the main approaching channel. For some of the ships navigating in to Świnoujście the new regulations mean the necessity of passing the shallow waters, with all consequences of that. The most important effect, being predominating in shallow waters, it is the squat effect. This effect is causing the ship's speed reduction and the increase of fuel consumption. It is very difficult to select the influence of the squat effect from others, like weather conditions, waves high and direction, and sea keeping qualities for ships of different type. This paper is giving the contribution to deep analysis of the above, and is presenting the test results done for passenger/cargo Ferries, travelling as per regular service to the port of Świnoujście: M/F "Gryf" and M/F "Wolin".
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2018, 12, 1; 77-80
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Holocene evolution of the Pomeranian Bay environment, Southern Baltic Sea
Autorzy:
Kostecki, R.
Janczak-Kostecka, B.
Powiązania:
https://bibliotekanauki.pl/articles/48852.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
aerobic condition
anaerobic condition
Ancylus Lake
Baltic Sea
diatom assemblage
ecological group
geochemistry
Holocene
lacustrine sediment
marine diatom
marine environment
paleogeographic development
Pomeranian Bay
sediment core
shallow lake
Opis:
This article focuses on the diatom assemblages and geochemical composition of sediment cores retrieved from the Pomeranian Bay. We also discuss similarities and differences in the diatom assemblages and the palaeogeographic development of nearby regions. Our main objective was to determine the characteristics and rate of the Littorina transgression in the Pomeranian Bay area. Sediments were divided into units based on differences in the distribution of diatom ecological groups and in geochemical ratios, such as Mg/Ca, Na/K and Fe/Mn. This study identified lacustrine sediments deposited during the time of the Ancylus Lake. This lacustrine-period sedimentation took place in a shallow lake under aerobic conditions. The record of the onset of marine environment dates to 8900–8300 cal BP and corresponds to the Littorina transgression. After about 8300 cal BP, sedimentation took place in a deeper marine environment with higher biogenic production and anaerobic conditions. The abrupt appearance of marine diatom species and increased geochemical salinity indicators reflect the large impact of the Littorina transgression on the Pomeranian Bay environment.
Źródło:
Oceanologia; 2011, 53, (1-TI)
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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