Oceanologia (Mar 2008)

Upwelling events, coastal offshore exchange, links to biogeochemical processes - Highlights from the Baltic Sea Science Congress

  • Bogdan Ołdakowski,
  • Alicja Krajewska-Sołtys,
  • Łukasz Kozłowski,
  • Marcin Kaluźny,
  • Jan Jędrasik,
  • Sławomira Gromisz,
  • Anna Gałkowska,
  • Katarzyna Bradtke,
  • Luiza Bielecka,
  • Anetta Ameryk,
  • Lena Szymanek,
  • Dorota Burska,
  • Adam Krężel,
  • Marek Kowalewski,
  • Maciej Matciak,
  • Urmas Lips,
  • Inga Lips,
  • Maria Szymelfenig,
  • Urmas Raudsepp,
  • Andreas Lehmann,
  • Kai Myrberg,
  • Michał Ostrowski,
  • Mariusz Zalewski,
  • Oleg Andrejev,
  • Irene Suomi,
  • Victor Zhurbas3,
  • Olli-Kalle Kauppinen1,
  • Edith Soosaar3,
  • Jaan Laanemets3,,
  • Rivo Uiboupin3,,
  • Lembit Talpsepp3,,
  • Maria Golenko,
  • Nikolai Golenko,
  • Emil Vahtera

Journal volume & issue
Vol. 50, no. 1
pp. 95 – 113

Abstract

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The Baltic Sea Science Congress was held at Rostock University, Germany, from 19 to 22 March 2007. In the session entitled"Upwelling events, coastal offshore exchange, links to biogeochemical processes" 20 presentations were given,including 7 talks and 13 posters related to the theme of the session.This paper summarises new findings of the upwelling-related studies reported in the session. It deals with investigationsbased on the use of in situ and remote sensing measurements as well as numerical modelling tools. The biogeochemicalimplications of upwelling are also discussed.Our knowledge of the fine structure and dynamic considerations of upwelling has increased in recent decades with the advent ofhigh-resolution modern measurement techniques and modelling studies. The forcing and the overall structure, duration and intensity ofupwelling events are understood quite well. However, the quantification of related transports and the contribution to the overall mixingof upwelling requires further research. Furthermore, our knowledge of the links between upwelling and biogeochemical processes is stillincomplete. Numerical modelling has advanced to the extent that horizontal resolutions of c. 0.5 nautical miles can now be applied,which allows the complete spectrum of meso-scale features to be described. Even the development of filaments can be describedrealistically in comparison with high-resolution satellite data.But the effect of upwelling at a basin scale and possible changes under changing climatic conditions remain open questions.

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