Anomalies of Sea Ice Transports in the Arctic.

Martin, Torge and Martin, Thomas (2006) Anomalies of Sea Ice Transports in the Arctic. Open Access Annals of Glaciology, 44 . pp. 310-316.

[thumbnail of Martin2006.pdf]
Martin2006.pdf - Published Version
Available under License Creative Commons: Attribution 3.0.

Download (483kB) | Preview


In the Arctic, sea-ice motion and ice export are prominent processes and good indicators of Arctic climate system variability. Sea-ice drift is simulated using a dynamic–hermodynamic sea-ice model, validated with retrievals from SSM/I satellite observations. Both datasets agree well in reproducing the main Arctic drift patterns. In order to study inner Arctic transports and ice volume anomalies, the Arctic Ocean is split by ten boundaries, separating the central Arctic Ocean from the Nordic and marginal seas. It is found that the already dominant sea-ice export through Fram Strait has
increased at the expense of export through the Barents Sea in the most recent years investigated.
Furthermore, ice export from the Eurasian marginal seas increased slightly, followed by greater ice production during the winter. In contrast to this, the sea-ice volume moved within the Beaufort Gyre distinctly decreased. In total, the ice volume in the central Arctic decreased during the 40 year period covered by this study. The changes in the ice volume correspond to two wind-driven circulation regimes of the Arctic sea-ice motion, which recur approximately every 11 years. For the volume anomalies we derived a correlation of –0.59 to the North Atlantic Oscillation (NAO) index, lagging the NAOby 2 years.

Document Type: Article
Research affiliation: OceanRep > GEOMAR > FB1 Ocean Circulation and Climate Dynamics > FB1-ME Maritime Meteorology
Refereed: Yes
Open Access Journal?: No
Publisher: International Glaciological Society
Date Deposited: 03 Dec 2008 16:52
Last Modified: 05 Sep 2016 13:09

Actions (login required)

View Item View Item