Seasonal velocities of eight major marine-terminating outlet glaciers of the Greenland ice sheet from continuous in situ GPS instruments
We present 17 velocity records derived from in situ stand-alone single-frequency Global Positioning System (GPS) receivers placed on eight marine-terminating ice sheet outlet glaciers in South, West and North Greenland, covering varying parts of the period summer 2009 to summer 2012. Common to all t...
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Language: | English |
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ftvliz:oai:oma.vliz.be:257406 2023-05-15T16:21:25+02:00 Seasonal velocities of eight major marine-terminating outlet glaciers of the Greenland ice sheet from continuous in situ GPS instruments Ahlstrom, A. Andersen, S. Andersen, M. Machguth, H. Nick, F.M. Joughin, I. Reijmer, C. van de Wal, R. Boncori, J. Box, J. Citterio, M. van As, D. Fausto, R. Hubbard, A. 2013 application/pdf https://www.vliz.be/imisdocs/publications/291374.pdf en eng info:eu-repo/semantics/altIdentifier/wos/000209415500004 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.5194/essd-5-277-2013 https://www.vliz.be/imisdocs/publications/291374.pdf info:eu-repo/semantics/openAccess %3Ci%3EESSD+5%282%29%3C%2Fi%3E%3A+277-287.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.5194%2Fessd-5-277-2013%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.5194%2Fessd-5-277-2013%3C%2Fa%3E info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2013 ftvliz https://doi.org/10.5194/essd-5-277-2013 2022-05-01T10:40:19Z We present 17 velocity records derived from in situ stand-alone single-frequency Global Positioning System (GPS) receivers placed on eight marine-terminating ice sheet outlet glaciers in South, West and North Greenland, covering varying parts of the period summer 2009 to summer 2012. Common to all the observed glacier velocity records is a pronounced seasonal variation, with an early melt season maximum generally followed by a rapid mid-melt season deceleration. The GPS-derived velocities are compared to velocities derived from radar satellite imagery over six of the glaciers to illustrate the potential of the GPS data for validation purposes. Three different velocity map products are evaluated, based on ALOS/PALSAR data, TerraSAR-X/Tandem-X data and an aggregate winter TerraSAR-X data set. The velocity maps derived from TerraSAR-X/Tandem-X data have a mean difference of 1.5% compared to the mean GPS velocity over the corresponding period, while velocity maps derived from ALOS/PALSAR data have a mean difference of 9.7 %. The velocity maps derived from the aggregate winter TerraSAR-X data set have a mean difference of 9.5% to the corresponding GPS velocities. The data are available from the GEUS repository at doi:10.5280/GEUS000001. Article in Journal/Newspaper glacier Greenland Ice Sheet North Greenland Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) Greenland Earth System Science Data 5 2 277 287 |
institution |
Open Polar |
collection |
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) |
op_collection_id |
ftvliz |
language |
English |
description |
We present 17 velocity records derived from in situ stand-alone single-frequency Global Positioning System (GPS) receivers placed on eight marine-terminating ice sheet outlet glaciers in South, West and North Greenland, covering varying parts of the period summer 2009 to summer 2012. Common to all the observed glacier velocity records is a pronounced seasonal variation, with an early melt season maximum generally followed by a rapid mid-melt season deceleration. The GPS-derived velocities are compared to velocities derived from radar satellite imagery over six of the glaciers to illustrate the potential of the GPS data for validation purposes. Three different velocity map products are evaluated, based on ALOS/PALSAR data, TerraSAR-X/Tandem-X data and an aggregate winter TerraSAR-X data set. The velocity maps derived from TerraSAR-X/Tandem-X data have a mean difference of 1.5% compared to the mean GPS velocity over the corresponding period, while velocity maps derived from ALOS/PALSAR data have a mean difference of 9.7 %. The velocity maps derived from the aggregate winter TerraSAR-X data set have a mean difference of 9.5% to the corresponding GPS velocities. The data are available from the GEUS repository at doi:10.5280/GEUS000001. |
format |
Article in Journal/Newspaper |
author |
Ahlstrom, A. Andersen, S. Andersen, M. Machguth, H. Nick, F.M. Joughin, I. Reijmer, C. van de Wal, R. Boncori, J. Box, J. Citterio, M. van As, D. Fausto, R. Hubbard, A. |
spellingShingle |
Ahlstrom, A. Andersen, S. Andersen, M. Machguth, H. Nick, F.M. Joughin, I. Reijmer, C. van de Wal, R. Boncori, J. Box, J. Citterio, M. van As, D. Fausto, R. Hubbard, A. Seasonal velocities of eight major marine-terminating outlet glaciers of the Greenland ice sheet from continuous in situ GPS instruments |
author_facet |
Ahlstrom, A. Andersen, S. Andersen, M. Machguth, H. Nick, F.M. Joughin, I. Reijmer, C. van de Wal, R. Boncori, J. Box, J. Citterio, M. van As, D. Fausto, R. Hubbard, A. |
author_sort |
Ahlstrom, A. |
title |
Seasonal velocities of eight major marine-terminating outlet glaciers of the Greenland ice sheet from continuous in situ GPS instruments |
title_short |
Seasonal velocities of eight major marine-terminating outlet glaciers of the Greenland ice sheet from continuous in situ GPS instruments |
title_full |
Seasonal velocities of eight major marine-terminating outlet glaciers of the Greenland ice sheet from continuous in situ GPS instruments |
title_fullStr |
Seasonal velocities of eight major marine-terminating outlet glaciers of the Greenland ice sheet from continuous in situ GPS instruments |
title_full_unstemmed |
Seasonal velocities of eight major marine-terminating outlet glaciers of the Greenland ice sheet from continuous in situ GPS instruments |
title_sort |
seasonal velocities of eight major marine-terminating outlet glaciers of the greenland ice sheet from continuous in situ gps instruments |
publishDate |
2013 |
url |
https://www.vliz.be/imisdocs/publications/291374.pdf |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
glacier Greenland Ice Sheet North Greenland |
genre_facet |
glacier Greenland Ice Sheet North Greenland |
op_source |
%3Ci%3EESSD+5%282%29%3C%2Fi%3E%3A+277-287.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.5194%2Fessd-5-277-2013%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.5194%2Fessd-5-277-2013%3C%2Fa%3E |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/000209415500004 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.5194/essd-5-277-2013 https://www.vliz.be/imisdocs/publications/291374.pdf |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/essd-5-277-2013 |
container_title |
Earth System Science Data |
container_volume |
5 |
container_issue |
2 |
container_start_page |
277 |
op_container_end_page |
287 |
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1766009420608700416 |