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Sea ice velocity in the Fram Strait monitored by moored instruments

Widell, K.; Østerhus, Svein; Gammelsrød, Tor
Peer reviewed, Journal article
Published version
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URI
https://hdl.handle.net/1956/361
Date
2003-10-04
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  • Geophysical Institute [720]
Original version
Geophysical Research Letters 30(19): 1982   https://doi.org/10.1029/2003gl018119
Abstract
The Fram Strait sea ice velocity was measured by means of a new method using moored Doppler Current Meters in the period 1996–2000. Almost 3 years of ice velocity observations near 79N 5W are analyzed. The average southward ice velocity was 0.16 m/s. The correlation between the ice velocity and the cross-strait sea level pressure (SLP) difference was R = 0.76 for daily means and R = 0.79 for monthly means. The same crossstrait SLP difference exhibits a positive trend since 1950 of 10% of the mean per decade. By a simple linear model we compute mean sea ice area flux to 850 000 km2/year for the period 1950–2000. Ice thickness, monitored by means of Upward Looking Sonars since 1990, is also discussed. The combined data gave a monthly ice volume flux of 200 km3 during the last decade with no significant trend.
Publisher
American Geophysical Union
Journal
Geophysical Research Letters
Copyright
Copyright 2003 by the American Geophysical Union

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