Status Report October 2003

• the reconstruction of historical CTD- and bottle data is completed
• the quality control of the data due to certain validity limits has finished
• the processing of temperature/salinity/oxygen as well as nutrient measurements of the IOW database in layers of every ten meters has successfully been carried out
• we generated climatological monthly maps for each parameter in each layer and a mesh size of 1° x 1° (average, RMS, min, max and total number of samples)

State of data holdings in the IOW data base as by October 2003:

• Monitoring (BMP) data from 1951 - 2003 (CTD, hydrochemical bottle data)
• current meter data Darss Sill (Baltic Sea) 1973 - 1992
• various (Baltic Sea) from 1970 - 2003
• various (Atlantic) 1976 - 1992
• data from 472 cruises, thereof 305 cruises in the Baltic Sea
• about 52 700 hydrographic stations (CTD profiles, hydrochemical bottle data),
  thereof 44 700 in the Baltic with about 9 200 000 measured samples
  (1 907 000 temperature, 1 515 000 oxygen, 1 866 000 salinity)