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Estimating terrestrial snow depth with the Topex-Poseidon altimeter and radiometer

IEEE Transactions on Geoscience and Remote Sensing

By:
, , , ,
DOI: 10.1109/TGRS.2002.802463

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Abstract

Active and passive microwave measurements obtained by the dual-frequency Topex-Poseidon radar altimeter from the Northern Great Plains of the United States are used to develop a snow pack radar backscatter model. The model results are compared with daily time series of surface snow observations made by the U.S. National Weather Service. The model results show that Ku-band provides more accurate snow depth determinations than does C-band. Comparing the snow depth determinations derived from the Topex-Poseidon nadir-looking passive microwave radiometers with the oblique-looking Satellite Sensor Microwave Imager (SSM/I) passive microwave observations and surface observations shows that both instruments accurately portray the temporal characteristics of the snow depth time series. While both retrievals consistently underestimate the actual snow depths, the Topex-Poseidon results are more accurate.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Estimating terrestrial snow depth with the Topex-Poseidon altimeter and radiometer
Series title:
IEEE Transactions on Geoscience and Remote Sensing
DOI:
10.1109/TGRS.2002.802463
Volume
40
Issue:
10
Year Published:
2002
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
2162
Last page:
2169
Number of Pages:
8