Title :
Seasat, ERS-1/2 and NSCAT scatterometer observed changes on the large ice sheets
Author :
Drinkwater, Mark R. ; Long, David G.
Author_Institution :
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
Abstract :
Satellite-borne wind scatterometers are effective tools for monitoring ice sheets and microwave imaging techniques enable comparison of historic and contemporary scatterometer data in climate change studies. The authors document scattering characteristics of the Greenland ice sheet using data from the NSCAT, ERS-1/2 and Seasat SASS instruments. C- and Ku-band data enable characterization of frequency-dependent scattering characteristics and regional melting delineation. SASS-NSCAT differences show 18 year changes in dry-snow zone extent and indicate the decadal response to changes in the spatial patterns of accumulation and ablation
Keywords :
glaciology; hydrological techniques; remote sensing by radar; spaceborne radar; C-band; ERS-1; ERS-2; Greenland ice sheet; Ku-band; NSCAT scatterometer; SHF; Seasat; Seasat SASS; ablation; accumulation; change; dry-snow zone; glaciology; large ice sheet; measurement technique; melting; microwave imaging; polar ice sheet; radar remote sensing; radar scatterometry; spaceborne radar; temporal variation; Backscatter; Electromagnetic heating; Ice; Image resolution; Laboratories; Propulsion; Radar measurements; Radar scattering; Snow; Spaceborne radar;
Conference_Titel :
Geoscience and Remote Sensing Symposium Proceedings, 1998. IGARSS '98. 1998 IEEE International
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-4403-0
DOI :
10.1109/IGARSS.1998.703803
