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The Use of Ground-Based Photogrammetry and SAR Interferometry to Characterize the Surface Motion of an Arctic Glacier

K. Whitehead, B. Moorman, P. Wainstein

In the proceedings of: GEO2010 Calgary: 63rd Canadian Geotechnical Conference & 6th Canadian Permafrost Conference

Session: M2-E

ABSTRACT: Measurements of surface displacement made using GPS, SAR interferometry, and ground-based photogrammetry were compared for a number of targets located close to the terminus of a polythermal arctic glacier. The results showed that average measurements for the winter period made using GPS and SAR interferometry agreed well at most locations. Horizontal and vertical photogrammetric measurements were more variable, reflecting a greater sensitivity to seasonal flow variations. This study shows how the combination of these different measurement techniques is naturally complementary for studies of glacial dynamics.

RÉSUMÉ: Des données de déplacement de surface prises à l'aide de GPS, d'interférométrie SAR et de photogrammétrie de surface ont été comparées parmi un certain nombre de lieux ciblés localisés à proximité du terminus d'un glacier subpolaire de l'Arctique. Les résultats ont démontré que, pour la période hivernale, les données moyennes obtenus par GPS et interférométrie SAR étaient semblables pour la plupart des sites. Toutefois, les mesures photogrammétriques horizontales et verticales variaient davantage, ce qui reflète leur plus grande sensibilité aux variations saisonnières de l'écoulement. Cette étude démontre comment la combinaison de ces différentes techniques d'échantillonnage de données permet d'obtenir de l'information appariée lors d'études sur la dynamique glaciaire. 1 INTRODUCTION

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Cite this article:
K. Whitehead; B. Moorman; P. Wainstein (2010) The Use of Ground-Based Photogrammetry and SAR Interferometry to Characterize the Surface Motion of an Arctic Glacier in GEO2010. Ottawa, Ontario: Canadian Geotechnical Society.

@article{GEO2010_172, author = K. Whitehead; B. Moorman; P. Wainstein,
title = The Use of Ground-Based Photogrammetry and SAR Interferometry to Characterize the Surface Motion of an Arctic Glacier,
year = 2010
}