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...
Published in: | Earth System Science Data |
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Copernicus Publications
2013
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Online Access: | https://doi.org/10.5194/essd-5-277-2013 http://www.earth-syst-sci-data.net/5/277/2013/essd-5-277-2013.pdf https://doaj.org/article/e6d11ca289fc4fce8f9caa48a9fbb26e |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:e6d11ca289fc4fce8f9caa48a9fbb26e 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 A. P. Ahlstrøm S. B. Andersen M. L. Andersen H. Machguth F. M. Nick I. Joughin C. H. Reijmer R. S. W. van de Wal J. P. Merryman Boncori J. E. Box M. Citterio D. van As R. S. Fausto A. Hubbard 2013-07-01 https://doi.org/10.5194/essd-5-277-2013 http://www.earth-syst-sci-data.net/5/277/2013/essd-5-277-2013.pdf https://doaj.org/article/e6d11ca289fc4fce8f9caa48a9fbb26e en eng Copernicus Publications 1866-3508 1866-3516 doi:10.5194/essd-5-277-2013 http://www.earth-syst-sci-data.net/5/277/2013/essd-5-277-2013.pdf https://doaj.org/article/e6d11ca289fc4fce8f9caa48a9fbb26e undefined Earth System Science Data, Vol 5, Iss 2, Pp 277-287 (2013) geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2013 fttriple https://doi.org/10.5194/essd-5-277-2013 2023-01-22T19:05:28Z 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 Unknown Greenland Earth System Science Data 5 2 277 287 |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
geo envir |
spellingShingle |
geo envir A. P. Ahlstrøm S. B. Andersen M. L. Andersen H. Machguth F. M. Nick I. Joughin C. H. Reijmer R. S. W. van de Wal J. P. Merryman Boncori J. E. Box M. Citterio D. van As R. S. Fausto A. Hubbard Seasonal velocities of eight major marine-terminating outlet glaciers of the Greenland ice sheet from continuous in situ GPS instruments |
topic_facet |
geo envir |
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 |
A. P. Ahlstrøm S. B. Andersen M. L. Andersen H. Machguth F. M. Nick I. Joughin C. H. Reijmer R. S. W. van de Wal J. P. Merryman Boncori J. E. Box M. Citterio D. van As R. S. Fausto A. Hubbard |
author_facet |
A. P. Ahlstrøm S. B. Andersen M. L. Andersen H. Machguth F. M. Nick I. Joughin C. H. Reijmer R. S. W. van de Wal J. P. Merryman Boncori J. E. Box M. Citterio D. van As R. S. Fausto A. Hubbard |
author_sort |
A. P. Ahlstrøm |
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 |
publisher |
Copernicus Publications |
publishDate |
2013 |
url |
https://doi.org/10.5194/essd-5-277-2013 http://www.earth-syst-sci-data.net/5/277/2013/essd-5-277-2013.pdf https://doaj.org/article/e6d11ca289fc4fce8f9caa48a9fbb26e |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
glacier Greenland Ice Sheet North Greenland |
genre_facet |
glacier Greenland Ice Sheet North Greenland |
op_source |
Earth System Science Data, Vol 5, Iss 2, Pp 277-287 (2013) |
op_relation |
1866-3508 1866-3516 doi:10.5194/essd-5-277-2013 http://www.earth-syst-sci-data.net/5/277/2013/essd-5-277-2013.pdf https://doaj.org/article/e6d11ca289fc4fce8f9caa48a9fbb26e |
op_rights |
undefined |
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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1766009423223848960 |