Title :
Glacier flow and topography measurements with TerraSar-X and TanDEM-X
Author :
Eineder, M. ; Abdel Jaber, W. ; Floricioiu, D. ; Rott, H. ; Yague-Martinez, N.
Author_Institution :
German Aerosp. Center, Germany
Abstract :
We report on results from spaceborne velocity and topography measurements of the Drygalski glacier, Antarctic Peninsula. For our analysis we use a time series of TerraSAR-X data acquired between 2007 and 2010 which enables us to perform an error analysis and to determine higher order velocity parameters such as acceleration. Our estimated accuracy for velocity estimation is on the order of 2 cm/day and we find a weak slow down at the terminus of the glacier. Very first TanDEM-X single pass interferometric data sets acquired in 2010 allow us to reconstruct the 3D-glacier topography with unprecedented accuracy, delivering both, surface topography and roughness.
Keywords :
digital elevation models; geophysical fluid dynamics; geophysical image processing; glaciology; hydrological techniques; image reconstruction; radar interferometry; remote sensing by radar; synthetic aperture radar; topography (Earth); 3D-glacier topography; AD 2007 to 2010; Antarctic Peninsula; Drygalski glacier; TanDEM-X; TerraSAR-X; acceleration parameter; glacier flow; image reconstruction; single pass interferometric data sets; surface roughness; surface topography; time series; topography measurement; velocity estimation; velocity measurement; Acceleration; Accuracy; Antarctica; Correlation; Ice shelf; Time series analysis; Velocity measurement; Drygalski Glacier; TerraSAR-X; acceleration; feature tracking; glacier velocity;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2011 IEEE International
Conference_Location :
Vancouver, BC
Print_ISBN :
978-1-4577-1003-2
DOI :
10.1109/IGARSS.2011.6050067
