Using Airborne SAR Interferometry to Measure the Elevation of a Greenland Ice Cap

Jørgen Dall, K. Keller, S.N. Madsen, René Forsberg

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Abstract

A digital elevation model (DEM) of an ice cap in Greenland has been generated from airborne SAR interferometry data, calibrated with a new algorithm, and compared with airborne laser altimetry profiles and carrier-phase differential GPS measurements of radar reflectors deployed on the ice cap. The accuracy of the DEM is found to be 1.5 m and it is demonstrated that surface penetration is an important issue. Penetration depths up to 13 m are measured in the percolation zone. The effective penetration i.e. the bias of the interferometric height, has not previously been measured directly via comparison with GPS data and calibrated laser data.
Original languageEnglish
Title of host publicationProceedings of the IEEE 2000 International Geoscience and Remote Sensing Symposium
PublisherIEEE
Publication date2000
ISBN (Print)0-7803-6359-0
DOIs
Publication statusPublished - 2000
EventIEEE 2000 International Geoscience and Remote Sensing Symposium - Honolulu, United States
Duration: 24 Jul 200028 Jul 2000
http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=6913

Conference

ConferenceIEEE 2000 International Geoscience and Remote Sensing Symposium
Country/TerritoryUnited States
CityHonolulu
Period24/07/200028/07/2000
Internet address

Bibliographical note

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