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Arctic Rapid Sea Ice Loss Events in Regional Coupled Climate Scenario Experiments : Volume 9, Issue 4 (09/07/2012)

By Döscher, R.

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Book Id: WPLBN0003986703
Format Type: PDF Article :
File Size: Pages 47
Reproduction Date: 2015

Title: Arctic Rapid Sea Ice Loss Events in Regional Coupled Climate Scenario Experiments : Volume 9, Issue 4 (09/07/2012)  
Author: Döscher, R.
Volume: Vol. 9, Issue 4
Language: English
Subject: Science, Ocean, Science
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2012
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Koenigk, T., & Döscher, R. (2012). Arctic Rapid Sea Ice Loss Events in Regional Coupled Climate Scenario Experiments : Volume 9, Issue 4 (09/07/2012). Retrieved from http://www.ebooklibrary.org/


Description
Description: SMHI/Rossby Centre Folkborgsvägen 1, 60176 Norrköping, Sweden. Rapid sea ice loss events (RILEs) in a mini-ensemble of regional Arctic coupled climate model scenario experiments are analyzed. Mechanisms of sudden ice loss are strongly related to atmospheric circulation conditions and preconditioning by sea ice thinning during the seasons and years before the event. Clustering of events in time suggests a strong control by large scale atmospheric circulation. Anomalous atmospheric circulation is forcing ice flow and providing warm air affecting winter ice growth. Even without a seasonal preconditioning during winter, ice drop events can be initiated by anomalous inflow of warm air from the Atlantic sector during summer. It is shown that RILE events can be generated solely based on atmospheric circulation changes without possible competing mechanisms, such as anomalous seasonal radiative forcing or short-lived forcers (e.g. soot). Such forces do merely play minor roles or no role at all in our model. Mechanisms found are qualitatively in line with observations of the 2007 RILE.

Summary
Arctic rapid sea ice loss events in regional coupled climate scenario experiments

Excerpt
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