Motion of Arctic glaciers derived from PALSAR DATA

Offset fields between pairs of JERS-1 SAR and ALOS PALSAR data acquired in winter with 44 respectively 46 days time interval were employed for the estimation of glacier motion over Novaya Zemlya in the Russian Arctic. The displacement maps show a number of clearly defined fast-flowing units with dis...

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Bibliographic Details
Main Authors: Tazio Strozzi, Urs Wegmüller
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Subjects:
ALOS PALSAR
offset tracking
glacier motion
Arctic
Novaya Zemlya
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.494.5258
http://www.eorc.jaxa.jp/ALOS/en/conf/Proc_PIsymp2007/contents/proceedings/International_Polar_Year/IPY05.pdf
Description
Summary:Offset fields between pairs of JERS-1 SAR and ALOS PALSAR data acquired in winter with 44 respectively 46 days time interval were employed for the estimation of glacier motion over Novaya Zemlya in the Russian Arctic. The displacement maps show a number of clearly defined fast-flowing units with displacement larger than about 50 m/year. The estimated error of the offset tracking derived displacement is on the order of 20 m/year. Comparison of JERS-1 SAR and ALOS PALSAR results obtained in 1998 and 2007 allows us to investigate past and recent behavior of Polar Regions and possibly detect changes in the velocity of the glaciers.

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