The German Institute had conducted the complementary TRUMP research project ('Transport and Turnover in the Pomeranian Bay') in 1994-1996.
The main phase of that project had been preceded by Polish-German pilot studies in September/October 1993, the aim of which was to acquire knowledge providing a platform for the formulation of detailed research objectives in the main studies.
The main phase of the present studies was conducted in 1996 and 1997 on board r/v 'Baltica', 'Oceania' and the motorboat 'Stynka', each vessel having different objectives. This approach was reflected in the cruise schedules, the distribution of measuring stations and the measurement and sampling strategy. The task of the 'Stynka' included hydrological measurements and the sampling of water for the determination of chemical parameters in the Swina outlet from January 1996 to January 1998.