Geodetic and satellite derived ice surface velocities of Vestfonna ice cap
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| Format: | Dataset Open Access |
| Sprache: | en |
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PANGAEA
2011
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| author | Pohjola, Veijo A Christoffersen, Poul Kolondra, Leszek Moore, John C Pettersson, Rickard Schäfer, Martina Strozzi, Tazio Reijmer, Carleen H |
| author_facet | Pohjola, Veijo A Christoffersen, Poul Kolondra, Leszek Moore, John C Pettersson, Rickard Schäfer, Martina Strozzi, Tazio Reijmer, Carleen H |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | During 2007 we launched a geodetic campaign on the Svalbard ice cap Vestfonna in order to estimate the velocity field of the ice cap. This was done within the frame of the IPY project KINNVIKA. We present here the velocity measurements derived from our campaigns 2007-2010 and compare the geodetic measurements against InSAR velocity fields from satellite platforms from 1995/96 and 2008. We find the spatial distribution of ice speeds from the InSAR is in good agreement within the uncertainty limits with our geodetic measurements. We observe no clear indication of seasonal ice speed differences, but we find a speed-up of the outlet glacier Franklinbreen between the InSAR campaigns, and speculate the outlet is having a surge phase. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_818291 |
| institution | PANGAEA |
| language | en |
| publishDate | 2011 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Geodetic and satellite derived ice surface velocities of Vestfonna ice cap Pohjola, Veijo A Christoffersen, Poul Kolondra, Leszek Moore, John C Pettersson, Rickard Schäfer, Martina Strozzi, Tazio Reijmer, Carleen H International Polar Year (2007-2008); IPY During 2007 we launched a geodetic campaign on the Svalbard ice cap Vestfonna in order to estimate the velocity field of the ice cap. This was done within the frame of the IPY project KINNVIKA. We present here the velocity measurements derived from our campaigns 2007-2010 and compare the geodetic measurements against InSAR velocity fields from satellite platforms from 1995/96 and 2008. We find the spatial distribution of ice speeds from the InSAR is in good agreement within the uncertainty limits with our geodetic measurements. We observe no clear indication of seasonal ice speed differences, but we find a speed-up of the outlet glacier Franklinbreen between the InSAR campaigns, and speculate the outlet is having a surge phase. |
| title | Geodetic and satellite derived ice surface velocities of Vestfonna ice cap |
| topic | International Polar Year (2007-2008); IPY |
| url | https://doi.org/10.1594/PANGAEA.818291 |