Error Analysis for Interferometric SAR Measurements of Ice Sheet Flow

• Published in: IEEE 1999 International Geoscience and Remote Sensing Symposium. IGARSS'99 (Cat. No.99CH36293)
• Main Authors: Mohr, Johan Jacob, Madsen, Søren Nørvang
• Format: Other Non-Article Part of Journal/Newspaper
• Language: English
• Published: IEEE 1999
• Subjects: Ice Sheet
• Online Access: https://orbit.dtu.dk/en/publications/99885399-9866-4f93-85cb-9d45e9ffbc09; https://doi.org/10.1109/IGARSS.1999.773413; https://backend.orbit.dtu.dk/ws/files/5385487/Mohr.pdf

This article concerns satellite interferometric radar measurements of ice elevation and three-dimensional flow vectors. It describes sensitivity to (1) atmospheric path length changes, and other phase distortions, (2) violations of the stationary flow assumption, and (3) unknown vertical velocities and slope errors in conjunction with a surface parallel flow assumption. The most surprising result is that assuming a stationary flow the east component of the three-dimensional flow derived from ascending and descending orbit data is independent of slope errors and of the vertical flow.