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Sea ice velocity in the Fram Strait monitored by moored instruments

Widell, K. LU ; Østerhus, S. and Gammelsrød, T. (2003) In Geophysical Research Letters 30(19).
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 79°N 5°W 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 cross-strait 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... (More)

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 79°N 5°W 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 cross-strait 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.

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author
publishing date
type
Contribution to journal
publication status
published
subject
in
Geophysical Research Letters
volume
30
issue
19
publisher
American Geophysical Union
external identifiers
  • scopus:17744421225
ISSN
0094-8276
language
English
LU publication?
no
id
eb53e435-bf64-46a9-882b-9026dc68bafe
date added to LUP
2017-06-14 16:45:42
date last changed
2018-10-03 11:40:21
@article{eb53e435-bf64-46a9-882b-9026dc68bafe,
  abstract     = {<p>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 79°N 5°W 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 cross-strait 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 km<sup>2</sup>/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 km<sup>3</sup> during the last decade with no significant trend.</p>},
  author       = {Widell, K. and Østerhus, S. and Gammelsrød, T.},
  issn         = {0094-8276},
  language     = {eng},
  month        = {10},
  number       = {19},
  publisher    = {American Geophysical Union},
  series       = {Geophysical Research Letters},
  title        = {Sea ice velocity in the Fram Strait monitored by moored instruments},
  volume       = {30},
  year         = {2003},
}