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This paper describes a classification algorithm using dual-polarized scatterometer measurements to identify the edge of the sea ice cover. The distinct polarization scattering signatures of sea ice and open water are discussed and illustrated with the dual-polarized radar measurements from the Seasat-A scatterometer (SASS). The analysis of SASS data suggests that the ratio of vertical and horizontal polarization backscatter, denoted as the copol ratio, is a useful discriminator of sea ice and open ocean. A simple classification algorithm using the thresholds of the copol ratio and backscatter levels is proposed. The feasibility of this algorithm is demonstrated using the SASS data from the single-sided, dual-polarization mode. The results indicate that the dual-polarized measurements from the NASA scatterometer (NSCAT) can be used to produce routine maps of sea ice edges
Published in:
Geoscience and Remote Sensing, IEEE Transactions on
(Volume:35
,
Issue:
3
)
Date of Publication: May 1997
- Page(s):
- 560 - 569
- ISSN :
- 0196-2892
- INSPEC Accession Number:
- 5598643
- Digital Object Identifier :
- 10.1109/36.581968
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 06 August 2002
- Issue Date :
- May 1997
- Sponsored by :
- IEEE Geoscience and Remote Sensing Society
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