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Evaluation of new s...
Evaluation of new spaceborne SAR sensors for sea-ice monitoring in the Baltic Sea
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Eriksson, Leif E. B. (författare)
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- Borenas, Karin (författare)
- UMFpub
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Dierking, Wolfgang (författare)
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Berg, Anders (författare)
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Santoro, Maurizio (författare)
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Pemberton, Per (författare)
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- Lindh, Henrik (författare)
- UMF
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Karlson, Bengt (författare)
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(creator_code:org_t)
- CANADIAN AERONAUTICS SPACE INST, 2010
- 2010
- Engelska.
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Ingår i: Canadian journal of remote sensing. - : CANADIAN AERONAUTICS SPACE INST. - 0703-8992 .- 1712-7971. ; 36, s. S56-S73
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.5...
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Abstract
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- In this study, synthetic aperture radar (SAR) data from the Advanced Land Observing Satellite (ALOS) and the Envisat, RADARSAT-2, and TerraSAR-X satellites were compared to evaluate their usefulness for sea-ice monitoring in the Baltic Sea. Radar signature characteristics at different frequencies, polarizations, and spatial resolutions are presented for three examples from 2009. C-band like-polarization data, which have been used for operational sea-ice mapping since the early 1990s, serve as a reference. Advantages and disadvantages were identified for the different SAR systems and imaging modes. One conclusion is that cross-polarized data improve the discrimination between sea ice and open water. Another observation is that it is easier to identify ice ridges in L-band data than in images from shorter wavelengths. The information content of X-and C-band images is largely equivalent, whereas L-band data provide complementary information. L-band SAR also seems to be less sensitive to wet snow cover on the ice.
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- art (ämneskategori)
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