Title :
Evaluating ICESat full waveforms over the part of Nyainqêntanglha Mountain range, the Tibetan Plateau
Author :
Shi, Junchao ; Menenti, Massimo ; Lindenbergh, Roderik
Author_Institution :
Dept. of Geosci. & Remote Sensing, Delft Univ. of Technol., Delft, Netherlands
Abstract :
Glaciers in the Tibetan mountains are expected to be sensitive to climate change. The change of glacier mass is locally depending on e.g. precipitation, melting and variation in ice flow. In this paper we analyze the data acquired by ICESat/GLAS laser altimetry, along several tracks over the glaciers of the Nyainqêntanglha range from February, 2003 to November, 2004. The surface characteristics are evaluated within laser footprints over the glacier outlines based on the glaciological inventory on the Tibetan Plateau constructed by CAREERI, CAS. For this purpose, we extract two waveform parameters: the waveform width and the number of modes. These parameters are compared with surface slope and roughness obtained from the ASTER GDEM (Global Digital Elevation Model).
Keywords :
digital elevation models; feature extraction; geomorphology; geophysical image processing; glaciology; hydrological techniques; radiometry; remote sensing by laser beam; AD 2003 02 to 2004 11; ASTER GDEM; CAREERI; CAS; GLAS laser altimetry; ICESat full waveforms; Nyainqentanglha Mountain range; Tibetan Plateau; Tibetan mountains; climate change; glacier mass change; global digital elevation model; ice flow variation; melting; precipitation; surface roughness; surface slope; waveform parameter; waveform width; Altimetry; Ice; Rough surfaces; Surface morphology; Surface roughness; Surface topography; Surface waves; ASTER GDEM; ICESat/GLAS; waveform analysis;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2012 IEEE International
Conference_Location :
Munich
Print_ISBN :
978-1-4673-1160-1
Electronic_ISBN :
2153-6996
DOI :
10.1109/IGARSS.2012.6350483