| Title | Repeat pass InSAR observations of river and lake ice cover: a preliminary evaluation of information content |
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| Author | van der Sanden, J J ; Drouin, H; Bian, Y |
| Source | Proceedings of the CGU HS Committee on River Ice Processes and the Environment 17th Workshop on River Ice; 2013 p. 258-271 |
| Links | Online - En ligne
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| Image |  |
| Year | 2013 |
| Alt Series | Earth Sciences Sector, Contribution Series 20130199 |
| Publisher | Canadian Geophysical Union |
| Meeting | CGU HS Committee on River Ice Processes and the Environment 17th Workshop on River Ice; Edmonton; CA; July 21-24, 2013 |
| Document | book |
| Lang. | English |
| Media | paper; on-line; digital |
| File format | pdf |
| Subjects | surficial geology/geomorphology; geophysics; Nature and Environment; ice; glacial lakes; remote sensing; satellite imagery; mapping techniques; computer mapping; ice thickness; SAR; RADARSAT |
| Program | Remote Sensing Science |
| Released | 2013 01 01 |
| Abstract | This paper introduces end users with an interest in river and lake ice to repeat pass SAR interferometry and demonstrates some of its potential as a tool in support of their monitoring and mapping
needs. Specifically, the preliminary results shown in this text showcase the utility of SAR interferometry for the detection of temporal, small-scale physical change in ice cover and the mapping of ice cover thickness. The study area is located in
the Mackenzie Delta near the town of Inuvik, Northwest Territories, Canada. The change detection results
reveal remarkable change in ice cover during the winter season over time periods in the order of days or more. The mapping of ice thickness
requires minimal change between contributing SAR acquisitions and therefore benefits from the short imaging repeat cycles offered by existing and forthcoming (e.g. Canada's RADARSAT Constellation Mission) multi-satellite SAR configurations. The
images applied in the present study were acquired by the Italian COSMO-Skymed SAR constellation. Even though this constellation is
not optimal for ice cover thickness mapping, the results achieved are encouraging because they agree with available
ground reference data. However, it should be noted that SAR interferometry will not support consistent mapping of the thickness of all types of river and lake ice. |
| Summary | (Plain Language Summary, not published)
River and lake ice cover are an integral part of cold region environments such as Canada. This paper introduces persons involved with the study or
management of freshwater ice to SAR interferometry and demonstrates some of its potential to provide information in support of their goals. Specifically, the paper addresses the utility of SAR interferometry for the detection of temporal change in
ice cover properties and the mapping of ice cover thickness. The study area is located in the Mackenzie Delta near the town of Inuvik, Northwest Territories, Canada. During March of 2012 the area was imaged three times over a period of four days by
the Italian COSMO-Skymed SAR constellation. The short imaging repeat cycle offered by this constellation is shown to be critical for the mapping of ice cover thickness in particular. The RADARSAT Constellation Mission will offer similar capabilities
and thus facilitate the future use of SAR interferometry for the observation of ice cover in Canada. |
| GEOSCAN ID | 293010 |
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