Evaluating Landfast Sea Ice Ridging near UtqiagVik Alaska Using TanDEM-X Interferometry

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Marbouti , M , Eriksson , L , Dammann , D O , Demchev , D , Jones , J , Berg , A & Antropov , O 2020 , ' Evaluating Landfast Sea Ice Ridging near UtqiagVik Alaska Using TanDEM-X Interferometry ' , Remote Sensing , vol. 12 , no. 8 , 1247 . https://doi.org/10.3390/rs12081247

Title: Evaluating Landfast Sea Ice Ridging near UtqiagVik Alaska Using TanDEM-X Interferometry
Author: Marbouti, Marjan; Eriksson, Leif; Dammann, Dyre Oliver; Demchev, Denis; Jones, Joshua; Berg, Anders; Antropov, Oleg
Contributor: University of Helsinki, Department of Physics
Date: 2020-04-02
Language: eng
Number of pages: 18
Belongs to series: Remote Sensing
ISSN: 2072-4292
URI: http://hdl.handle.net/10138/314786
Abstract: Seasonal landfast sea ice stretches along most Arctic coastlines and serves as a platform for community travel and subsistence, industry operations, and as a habitat for marine mammals. Landfast ice can feature smooth ice and areas of m-scale roughness in the form of pressure ridges. Such ridges can significantly hamper trafficability, but if grounded can also serve to stabilize the shoreward ice. We investigate the use of synthetic aperture radar interferometry (InSAR) to assess the formation and movement of ridges in the landfast sea ice near Utqiagvik, Alaska. The evaluation is based on the InSAR-derived surface elevation change between two TanDEM-X bistatic image pairs acquired during January 2012. We compare the results with backscatter intensity, coastal radar data, and SAR-derived ice drift and evaluate the utility of this approach and its relevance for evaluation of ridge properties, as well as landfast sea ice evolution, dynamics, and stability.
Subject: 114 Physical sciences
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