Physical and Chemical Oceanographic Data from the Baltic Sea, Kattegat (Sound and Belts) and Skagerrak

Station Data from 70,000 stations, some from as far back as 1890, are available. The principal parameters are temperature, salinity, O2 (from 1900), PO4P, pH (from 1955), P, NO2N, NO3N, NH4N, N, SiO2, Alkalinity (from 1965), and Surface meteorology. 3 magnetic tapes (1,600 BPI). 3,000 CTD casts (Plessey and Neil-Brown CTD-sond) are available from 1979 to the present, on 4 magnetic tapes (1600 BPI); data consist of conductivity, salinity, and temperature versus depth.

Hydrography, physical and dynamic data are available from 11 lightships, taken by water bottle and current meters. In the earlier years, monthly means, then daily/every other day. There are 25,000 series, from 1880 to 1970, of varying duration.