From Greenland Coast towards Jan Mayen
In
February 1993 R/V "Håkon Mosby" operated in the central Greenland
Sea (75ºN, 2ºW) where deep water formation occurs in winter time. SAR
images from ERS-1 as well as SSM/I data were used to map the sea ice extent, especially
the ice tongue Odden and the bay of open water between Odden and the main pack
ice (Nordbukta). This image has been acquired by ERS-1 SAR on 13-2-1993.
(A: large multiyear-floes, B: small floes broken up by waves, C: ice edge, D:
mostly open water less than 20% ice concentration, E: formation of bands of new
ice in the Odden ice tounge)
The SAR stripe, which is 700 km long, was taken on February 13 and extends from
the Greenland Coast at about 77ºN in a southeasterly direction into the ice
tongue (see map ).
The SAR stripe covers several ice types and the open water in Nordbukta. In the
interior of the ice pack most of the ice consist of large multiyear floes which
can be up to several tens of kilometers in diameter. Between the large floes,
young ice and firstyear ice with lower backscatter are seen in the SAR stripe.
The ice tongue was well developed in this period, as seen in the SSM/I map (see
this figure ).
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
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