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I. Introduction 
This data report presents current data of three measuring campaigns carried out in the 
framework of OPUS (Ostsee-Programm Umwelt und Strömung, Baltic Sea Program Environment 
and Currents) between 1993 and 1998: 
OPUS I: Mecklenburg Bight, November, 1993 - January, 1994 
OPUS II: Mecklenburg Bight, May, 1998 - June, 1998 
FBB 1995: Fehmambelt Buoy, April, 1995 - January, 1996 
Additionally shown are wind data of three meteorological stations, which are kindly provided by 
the Deutscher Wetterdienst, Geschäftsstelle Seeschiffahrt. 
OPUS I: 
Between November, 1993, and January, 1994, the Bundesamt für Seeschiffahrt und 
Hydrographie (BSH, Federal Maritime and Hydrographie Agency) carried out the measuring 
program OPUS I to monitore currents and circulation patterns in the Mecklenburg Bight. 
Especially in the eastern part of the bight, along the coast of the former German Democratic 
Republic, there was a great lack of current data. The aim was to create a set of synoptical current 
data records within the whole bight and to develop an idea about the winterly circulation pattern 
within the Mecklenburg Bight. Furtheron, the data may be used for the development and validation 
of numerical circulation models. 
During R/V "GAUSS" cruise 233 the BSH deployed at eight positions current meter 
moorings with two Aanderaa RCM4, -5, -7, or -8 current meters each. A bottom-mounted upward 
looking 600 kHz BroadBand ADCP (Acoustic Doppler Current Profiler, RD Instruments) was 
deployed in the centre of the Fehmambelt which is the main channel for the water exchange 
between the Baltic proper and the North Sea. The vertical resolution of the ADCP (bin length) was 
1 metre. Three positions were additionally equipped with an Aanderaa water level recorder (WLR). 
The record length varies between 19 and 67 days (see Table "Mooring Data OPUS F’). The 
sampling interval of all instruments was 10 minutes. The positions of all moorings and 
meteorological stations presented in this report are shown in Figure 1.