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Albedo Parametrization and Reversibility of Sea Ice Decay : Volume 19, Issue 1 (09/02/2012)

By Müller-stoffels, M.

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Book Id: WPLBN0003977229
Format Type: PDF Article :
File Size: Pages 14
Reproduction Date: 2015

Title: Albedo Parametrization and Reversibility of Sea Ice Decay : Volume 19, Issue 1 (09/02/2012)  
Author: Müller-stoffels, M.
Volume: Vol. 19, Issue 1
Language: English
Subject: Science, Nonlinear, Processes
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


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Wackerbauer, R., & Müller-Stoffels, M. (2012). Albedo Parametrization and Reversibility of Sea Ice Decay : Volume 19, Issue 1 (09/02/2012). Retrieved from

Description: Physics Department, University of Alaska Fairbanks, AK 99775, USA. The Arctic's sea ice cover has been receding rapidly in recent years, and global climate models typically predict a further decline over the next century. It is an open question whether a possible loss of Arctic sea ice is reversible. We study the stability of Arctic model sea ice in a conceptual, two-dimensional energy-based regular network model of the ice-ocean layer that considers ARM's longwave radiative budget data and SHEBA albedo measurements. Seasonal ice cover, perennial ice and perennial open water are asymptotic states accessible by the model. We show that the shape of albedo parameterization near the melting temperature differentiates between reversible continuous sea ice decrease under atmospheric forcing and hysteresis behavior. Fixed points induced solely by the surface energy budget are essential for understanding the interaction of surface energy with the radiative forcing and the underlying body of ice/water, particularly close to a bifurcation point. Future studies will explore ice edge stability and reversibility in this lattice model, generalized to a latitudinal transect with spatiotemporal lateral atmospheric heat transfer and high spatial resolution.

Albedo parametrization and reversibility of sea ice decay

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