112 
40. Jahresber. Dt. Hydrogr. Inst. 1985 
Internationale Vereinigung der Vermessungsingenieure (FIG, Federation 
Internationale des Geometres) 
Commission IV (Hydrographie Surveys): Prof. Dr.-Ing. Bettac 
Working Group 416: Prof. Dr.-Ing. Bettac 
Working Group Positioning Systems: Berger 
Working Group Detection of Depth Anomalies : Berger 
Conference of Baltic Oceanographers 
Dr. Mittelstaedt 
International Council on Scientific Unions (ICSIJ) 
Panel on World Data Centres: Kohnke (ex officio) 
Internationaler Normenausschuß (ISO, International Organization for 
Standardization) 
Subcommittee ISO/TC 8/SC 16 (Magnetic Compasses and Accessories): 
Uhlig 
Working Group 3 (Magnetic moment): Uhlig (Koordinator) 
European Control Data Users Group (ECODU) 
DHI ist Mitglied. Brockmann, Grünewald, Hecht 
Internationale Elektrotechnische Kommission (IEC, International 
Electrotechnical Commission) 
Arbeitsgruppe TC80/WG5 (Environmental Conditions): Stahlke 
Union Radio-Scientifique Internationale (URSI) 
Deutscher URSI-Landesausschuß: Voppel 
International Cartographic Association 
Commission on Marine Cartography: Prof. Dr.-Ing. Bettac 
X-SAR Science Group 
Arbeitsgruppe "Ice and Snow": Strübing (Leiter)