The most up-to-date source with high-resolution sampled bottom parameter info seems to be the "IOW, Institut f. Ostseeforschung, Warnemuende/Germany". (They also possess hi-res digitized bathymetric maps of the Baltic Sea)

Send your request to: Torsten Seifert, e-mail:

address: P.O.Box 301038, D-18111 Rostock, Germany. Their home page in www is

Alternative sources for geologic info:

Dr. Birger Larsen, GEUS (Geological Survey of Denmark and Greenland), Thoravej 8, 2400 Copenhagen NV, Denmark. He is a geologist who knows at least where to find that data if it is available. This institute has its home page at