CHANGES OF WATER PHYSICAL FEATURES AS INDICATORS OF THE CONVECTION MOVEMENTS IN THE COASTAL ZONE OF THE POMERANIAN BAY

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Halina Kowalewska-Kalkowska Joanna Lejman

Abstract

In the study water temperature and salinity changes under different meteorological conditions were analysed to recognise convection movements of waters in the coastal zone of the Pomeranian Bay (near the Wolin Island). The summer period (1971-1990) was considered. The study revealed that a rapid up to 5.0ºC drop of sea surface temperature, which cannot be explained by the air temperature fall, may indicate the outflow of subsurface waters to the surface or along shore movement of waters coming from eastern upwelling regions. The contribution of easterly winds during such events reached 54% (Swinoujście). On the other hand a sea temperature increase can be the result of the movement of waters (mainly the Oder waters) caused by westerly winds. However since the Pomeranian Bay is shallow and exposed to enhanced dynamics it can’t be perceived as a typical upwelling or downwelling region.


Key words: water temperature, salinity, air temperature, wind conditions, the Pomeranian Bay

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How to Cite
KOWALEWSKA-KALKOWSKA, Halina; LEJMAN, Joanna. CHANGES OF WATER PHYSICAL FEATURES AS INDICATORS OF THE CONVECTION MOVEMENTS IN THE COASTAL ZONE OF THE POMERANIAN BAY. Baltic Coastal Zone, [S.l.], v. 7, p. 2002/2003, vol.7, pp. 5 - 20, oct. 2002. ISSN 1643-0115. Available at: <https://bcz.apsl.edu.pl/index.php/1/article/view/221>. Date accessed: 04 july 2022.
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