Open water detection from Baltic Sea ice Radarsat-1 SAR imagery

Author

Karvonen, Juha ; Similä, Markku ; Mäkynen, Marko

Author_Institution

Finnish Inst. of Marine Res., Helsinki, Finland

Volume

2

Issue

3

fYear

2005

fDate

7/1/2005 12:00:00 AM

Firstpage

275

Lastpage

279

Abstract

An algorithm for open water and sea ice discrimination for Radarsat-1 ScanSAR images is presented. The algorithm is based on segmentation and local synthetic aperture radar signal intensity autocorrelation. The algorithm performance is evaluated by comparing the results to operational digitized ice charts, in which the sea ice information is based on human interpretation of multiple data sources, including remote sensing data. The algorithm locates the open water of the digitized ice charts with about 90% accuracy.

Keywords

image segmentation; radar imaging; remote sensing by radar; sea ice; spaceborne radar; synthetic aperture radar; Baltic Sea ice; Gulf of Bothnia; Radarsat-1 ScanSAR images; SAR imagery; local synthetic aperture radar signal intensity autocorrelation; open water detection; operational digitized ice charts comparison; sea ice discrimination; sea ice information; segmentation; Autocorrelation; Backscatter; Radar detection; Radar scattering; Remote monitoring; Sea ice; Sea measurements; Sea surface; Spatial resolution; Synthetic aperture radar; Autocorrelation; Baltic sea ice; Radarsat-1; open water; synthetic aperture radar (SAR);

fLanguage

English

Journal_Title

Geoscience and Remote Sensing Letters, IEEE

Publisher

ieee

ISSN

1545-598X

Type

jour

DOI

10.1109/LGRS.2005.847930

Filename

1468080