Conference paper
Using Airborne SAR Interferometry to Measure the Elevation of a Greenland Ice Cap
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.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2000 |
| Pages: | 1125,1126,1127 |
| Proceedings: | IEEE 2000 International Geoscience and Remote Sensing Symposium |
| ISBN: | 0780363590 and 9780780363595 |
| Types: | Conference paper |
| DOI: | 10.1109/IGARSS.2000.858043 |
| ORCIDs: | Dall, Jørgen and Forsberg, René |
Aircraft navigation Calibration DEM Digital elevation models Global Positioning System Greenland Ice Sheet Greenland ice cap Ice InSAR Interferometry Laser radar Layout SAR interferometry Satellites Spaceborne radar airborne radar algorithm digital elevation model elevation glaciology hydrological techniques ice cap measurement technique percolation zone polar ice sheet radar remote sensing remote sensing by radar surface penetration surface topography synthetic aperture radar
