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Snow Melting Bias in Microwave Mapping of Antarctic Snow Accumulation : Volume 2, Issue 2 (24/04/2008)

By Magand, O.

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Book Id: WPLBN0003979026
Format Type: PDF Article :
File Size: Pages 19
Reproduction Date: 2015

Title: Snow Melting Bias in Microwave Mapping of Antarctic Snow Accumulation : Volume 2, Issue 2 (24/04/2008)  
Author: Magand, O.
Volume: Vol. 2, Issue 2
Language: English
Subject: Science, Cryosphere, Discussions
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2008
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Picard, G., Brucker, L., Fily, M., Genthon, C., & Magand, O. (2008). Snow Melting Bias in Microwave Mapping of Antarctic Snow Accumulation : Volume 2, Issue 2 (24/04/2008). Retrieved from http://www.ebooklibrary.org/


Description
Description: Laboratoire de Glaciologie et Géophysique de l'Environnement, CNRS, Université Joseph Fourier-Grenoble, 54 Rue Molière, BP 96, 38402 St Martin d'Hères Cedex, France. Satellite records of microwave surface emission have been used to interpolate in-situ observations of Antarctic surface mass balance (SMB) and build continental-scale maps of accumulation. Using a carefully screened subset of accumulation measurements in the 90°–180° E sector, we show a reasonable agreement with microwave-based accumulation map in the dry-snow regions, but large discrepancies in the coastal regions where melt occurs during summer. Using an emission microwave model, we explain the failure of microwave sensors to retrieve accumulation by the presence of layers created by melt/re-freeze cycles. We conclude that regions potentially affected by melting should be masked-out in microwave-based interpolation schemes.

Summary
Snow melting bias in microwave mapping of Antarctic snow accumulation

Excerpt
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