Ice dynamics inside the ice edge
In
the area east of Svalbard multiyear ice from the Arctic is transported southwards
with the East Spitzbergen Current. The multiyear ice is identified as the brighter
floes or cluster of floes in the two ERS-1 SAR images. They are taken with 6 days
interval in February 92 and cover the same geographical area (see the location
of the SAR images ).
The ice pack is drifting southwestwards at a speed of about 10 km per day. The
largest floe (marked A) in the image to the left is a 40 km long multiyear floe.
After 6 days this floe has moved 60 km and is broken in several pieces. Another
interesting observation is the occurrence of several large leads oriented in an
east-west direction in the image to the left. The leads are characterized by dark
signature which is thin ice. These leads have disappeared 6 days later due to
a compaction of the ice field.
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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