| Title | Stereo radargrammetry with Radarsat-2 in the Canadian Arctic |
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| Author | Toutin, T; Blondel, E; Clavet, D; Schmitt, C |
| Source | IEEE Transactions on Geoscience and Remote Sensing (Institute of Electrical and Electronics Engineers) vol. PP, issue 99, 2012 p. 1-9, https://doi.org/10.1109/TGRS.2012.2211605  Open
Access |
| Image |  |
| Year | 2012 |
| Alt Series | Earth Sciences Sector, Contribution Series 20120240 |
| Publisher | Institute of Electrical and Electronics Engineers (IEEE) |
| Document | serial |
| Lang. | English |
| Media | paper; on-line; digital |
| File format | pdf |
| Province | Nunavut |
| NTS | 27F/13 |
| Area | Baffin Island; Gibbs Fiord; Sillem Island |
| Lat/Long WENS | -72.0000 -71.5000 71.0000 70.7500 |
| Subjects | geophysics; remote sensing; radar methods; radar imagery; ice; ice conditions; icefields; Radarsat-2 |
| Illustrations | location maps; satellite images; tables; plots |
| Program | Topographic Mapping |
| Released | 2013 05 01 |
| Abstract | A digital elevation model (DEM) is generated using a Radarsat-2 (R-2) high-resolution stereo pair acquired over challenging icefields and fjords site in the Canadian Arctic (80$%$ of ice-covered areas
and almost 50$%$ of $>40{circ}$ slopes). The stereo DEM was produced using a new hybrid radargrammetric model, which did not need any reference cartographic data. The accuracy of the stereo DEM was quantified with a topographic 1959 DEM and Ice,
Cloud, and land Elevation Satellite (ICESat) data, over and outside the icefields and as a function of slope. The method could be applied to ice-covered areas with 1-sigma 25- or 18-m accuracy over less than 30${circ}$ or 5${circ}$ slopes,
respectively. In addition, a systematic elevation lowering of around 10 m computed between 1959 DEM and recent elevation data (R-2 and ICESat) could be due to icefield wastage over the last 50 years. |
| GEOSCAN ID | 291927 |
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