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Evaluation of new spaceborne SAR sensors for sea-ice monitoring in the Baltic Sea
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2010 (English)In: Canadian journal of remote sensing, ISSN 0703-8992, E-ISSN 1712-7971, Vol. 36, p. S56-S73Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
CANADIAN AERONAUTICS SPACE INST , 2010. Vol. 36, p. S56-S73
Identifiers
URN: urn:nbn:se:umu:diva-140776ISI: 000282371000006OAI: oai:DiVA.org:umu-140776DiVA, id: diva2:1150510
Available from: 2017-10-19 Created: 2017-10-19 Last updated: 2018-06-09

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Eriksson, Leif E. B.

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  • apa
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  • Other locale
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  • asciidoc
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