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TitleMonitoring lake ice during spring melt using RADARSAT-2 SAR
AuthorGeldsetzer, TORCID logo; van der Sanden, JORCID logo; Brisco, B
SourceCanadian Journal of Remote Sensing vol. 36, no. 2, 2010 p. S391-S400,
Alt SeriesEarth Sciences Sector, Contribution Series 20100440
PublisherInforma UK Limited
Mediapaper; on-line; digital
File formatpdf
NTS116N/15; 116N/16; 116O/13; 116O/14; 117A/04; 117B/01
AreaOld Crow Flats; Old Crow River
Lat/Long WENS-141.0000 -139.0000 68.2500 67.7500
Subjectsgeophysics; remote sensing; ice; ice conditions; RADARSAT-2; SAR
Illustrationslocation maps; graphs; plots; images; photographs
ProgramRemote Sensing Science
Released2014 06 02
AbstractMultipolarized RADARSAT-2 SAR imagery is used to monitor lake ice during the spring melt period. The study area is Old Crow Flats, Yukon, in the Canadian Arctic. HH and HV backscatter from lake ice is shown to have significant temporal variability and interlake diversity. Backscatter thresholds are statistically estimated to discriminate decaying lake ice from open water. A classification methodology is described that uses a HH backscatter threshold to identify initial break-up and a HV backscatter threshold for the main period of break-up. Classification accuracies are .81% (K= 0.189) prior to initial break-up and 66% - 97% (K=0.353 - 0.868) during break-up. This study demonstrates the potential of RADARSAT-2 imagery and, by extension, other C-band SAR satellites, to provide lake ice break-up information in support of monitoring and reporting requirements, subsequent decision-making, and scientific tasks for the Government of Canada.

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