18 
In this report, the data gathered during an Airborne 
Remote Sensing Programme (FMP) sponsored by the German 
Federal Ministry of Research and Techology (BMFT) have 
been compiled together with data of sea wave measure- 
ments carried out parallelly. 
HYDROGRAPHY 
Observations (G.A, Becker) 
Within the framework of a German Airborne Remote 
Sensing Programme (FMP) sponsored by the BMFT infrared 
scanning sensors were investigated in a test area in 
the German Bight, to see how far they are suitable for 
providing sea surface temperature distributions with 
sufficient accuracy. 
For logistic reasons we selected, as a testing area, 
the inner part of the German Bight between the light- 
vessels "Elbe 1" and "Deutsche Bucht" and between the 
lightvessel "Weser" and the island of Helgoland. Fur- 
chermore the lightvesselsand the island of Helgoland 
were outstanding points for air navigation. In addition, 
comparative values could be obtained on board the 
lightvessels and on the island of Helgoland, 
For the £field-phase during which the aircraft of the 
DVFLR (Deutsche Versuchsanstalt für Luft- und Raumfahrt) 
was to undertake several fly-over, the period 15 August 
to 10 September 1976 had been envisaged, During this 
time, RSV GAUSS had to be in the area of investigations 
in order to carry out the observations necessary for 
the comparison and correction of the remote sensing 
data, As, for reasons of maintenance, the aircraft could 
only fly on very few days, RSV GAUSS was available for 
other investigations. There was sufficient time to de- 
dloy and recover instrument moorings and to carry out