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The
ERS-1 SAR stripe is from February 16, 1993 and cuts across the Odden ice tongue
(see map ) which consists
mainly of pancake ice and grease ice. 
(A: open water, B: photos from R/V "Håkon Mosby" on 19 February 1993, C: grease ice and pancake ice, D: Jan Mayen island)
These ice types were documented by observations from R/V "Håkon Mosby", which operated in the northern part of the ice tongue (have a look at an example of grease ice, or an example of pancake ice).
The ice tongue usually develops in December and lasts until April, but not every year. Passive microwave data since 1978 from SMMR and SSM/I show that the ice tongue can be absent in some winters, such as in 1994.
The figure shows the ice concentration in % from SSM/I data on the same day as the SAR stripe. The rectangle indicates the location of the SAR stripe. White areas are due to masking of land effects.
NERSC, Bergen, Norway
Keywords: ESA European Space Agency - Agence spatiale europeenne, observation de la terre, earth observation, satellite remote sensing, teledetection, geophysique, altimetrie, radar, chimique atmospherique, geophysics, altimetry, radar, atmospheric chemistry