Relationship between sea-ice motion and geostrophic wind in the Northern Hemisphere

Details Relationship between sea-ice motion and geostrophic wind in the Northern Hemisphere Relationship between sea-ice motion and geostrophic wind in the Northern Hemisphere

Nov 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000georl..27.3735k&link_type=abstract

Geophysical Research Letters, Volume 27, Issue 22, p. 3735-3738

Mathematics

Logic

14

Oceanography: Physical: Ice Mechanics And Air/Sea/Ice Exchange Processes

Scientific paper

This paper presents maps showing the relationship between sea-ice motion derived from Defense Meteorological Satellite Program (DMSP) Special Sensor Microwave Imager (SSM/I) imagery and the geostrophic wind in the Northern Hemisphere for seven winters (1991/92-1997/98). The sea-ice motion is highly correlated with the geostrophic wind except for some coastal regions. Overall the direction of the ice motion is nearly parallel to the wind. An obvious contrast between seasonal ice zones and the interior of the Arctic is observed in the speed reduction factor (ratio of ice speed to wind speed), which is probably caused by the spatial variation of internal ice stress. Surface ocean currents are also derived by subtracting the wind effect from the ice motion.

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