GPS based surface displacements – a proxy for discharge and sediment transport from the Greenland Ice Sheet
The elastic respond of the Earth’s surface to mass changes has been measured with Global Positioning System (GPS). Mass loss as accumulated runoff and sediment transport from a 10000 km2 segment of the Greenland Ice Sheet (GrIS) correlated very well (R2=0.83) with GPS measured uplift. Accumulated wi...
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Online Access: | https://orbit.dtu.dk/en/publications/12d567b9-57f2-4992-aeea-20cc5f2ce55f https://doi.org/10.5194/tcd-8-3829-2014 https://backend.orbit.dtu.dk/ws/files/99555275/GPS_based_surface_displacements_a_proxy_for_discharge_and_sediment_transport_from_the_Greenland_Ice_Sheet.pdf |
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ftdtupubl:oai:pure.atira.dk:publications/12d567b9-57f2-4992-aeea-20cc5f2ce55f 2023-05-15T16:27:40+02:00 GPS based surface displacements – a proxy for discharge and sediment transport from the Greenland Ice Sheet Hasholt, Bent Khan, Shfaqat Abbas Mikkelsen, Andreas Bech 2014 application/pdf https://orbit.dtu.dk/en/publications/12d567b9-57f2-4992-aeea-20cc5f2ce55f https://doi.org/10.5194/tcd-8-3829-2014 https://backend.orbit.dtu.dk/ws/files/99555275/GPS_based_surface_displacements_a_proxy_for_discharge_and_sediment_transport_from_the_Greenland_Ice_Sheet.pdf eng eng info:eu-repo/semantics/openAccess Hasholt , B , Khan , S A & Mikkelsen , A B 2014 , ' GPS based surface displacements – a proxy for discharge and sediment transport from the Greenland Ice Sheet ' , The Cryosphere Discussions , vol. 8 , pp. 3829–3850 . https://doi.org/10.5194/tcd-8-3829-2014 article 2014 ftdtupubl https://doi.org/10.5194/tcd-8-3829-2014 2022-11-03T00:04:09Z The elastic respond of the Earth’s surface to mass changes has been measured with Global Positioning System (GPS). Mass loss as accumulated runoff and sediment transport from a 10000 km2 segment of the Greenland Ice Sheet (GrIS) correlated very well (R2=0.83) with GPS measured uplift. Accumulated winter precipitation correlated fairly well with surface depression (R2=0.69). The relationships are based on seven years of runoff and sediment transport observations from the Watson River (2007–2013), winter precipitation from Kangerlussuaq Airport and GPS observations at Kellyville. GPS recordings of surface subsidence and uplift from 1996–2013 are used to calculate 18 years time series of annual runoff, sediment and solute transport and 10 winter precipitation. Runoff and related transport of sediment and solutes increase over the period, while winter precipitation (land depression) tends to decrease. Based on the entire GPS record (1996–2013), it is shown that until 2005–2006 the mass balance of this segment of the GrIS was rather stable – since then there has been an increasing loss of mass, culminating in 2012. Article in Journal/Newspaper Greenland Ice Sheet Kangerlussuaq The Cryosphere The Cryosphere Discussions Technical University of Denmark: DTU Orbit Greenland Kangerlussuaq ENVELOPE(-55.633,-55.633,72.633,72.633) Kangerlussuaq Airport ENVELOPE(-50.714,-50.714,67.012,67.012) |
institution |
Open Polar |
collection |
Technical University of Denmark: DTU Orbit |
op_collection_id |
ftdtupubl |
language |
English |
description |
The elastic respond of the Earth’s surface to mass changes has been measured with Global Positioning System (GPS). Mass loss as accumulated runoff and sediment transport from a 10000 km2 segment of the Greenland Ice Sheet (GrIS) correlated very well (R2=0.83) with GPS measured uplift. Accumulated winter precipitation correlated fairly well with surface depression (R2=0.69). The relationships are based on seven years of runoff and sediment transport observations from the Watson River (2007–2013), winter precipitation from Kangerlussuaq Airport and GPS observations at Kellyville. GPS recordings of surface subsidence and uplift from 1996–2013 are used to calculate 18 years time series of annual runoff, sediment and solute transport and 10 winter precipitation. Runoff and related transport of sediment and solutes increase over the period, while winter precipitation (land depression) tends to decrease. Based on the entire GPS record (1996–2013), it is shown that until 2005–2006 the mass balance of this segment of the GrIS was rather stable – since then there has been an increasing loss of mass, culminating in 2012. |
format |
Article in Journal/Newspaper |
author |
Hasholt, Bent Khan, Shfaqat Abbas Mikkelsen, Andreas Bech |
spellingShingle |
Hasholt, Bent Khan, Shfaqat Abbas Mikkelsen, Andreas Bech GPS based surface displacements – a proxy for discharge and sediment transport from the Greenland Ice Sheet |
author_facet |
Hasholt, Bent Khan, Shfaqat Abbas Mikkelsen, Andreas Bech |
author_sort |
Hasholt, Bent |
title |
GPS based surface displacements – a proxy for discharge and sediment transport from the Greenland Ice Sheet |
title_short |
GPS based surface displacements – a proxy for discharge and sediment transport from the Greenland Ice Sheet |
title_full |
GPS based surface displacements – a proxy for discharge and sediment transport from the Greenland Ice Sheet |
title_fullStr |
GPS based surface displacements – a proxy for discharge and sediment transport from the Greenland Ice Sheet |
title_full_unstemmed |
GPS based surface displacements – a proxy for discharge and sediment transport from the Greenland Ice Sheet |
title_sort |
gps based surface displacements – a proxy for discharge and sediment transport from the greenland ice sheet |
publishDate |
2014 |
url |
https://orbit.dtu.dk/en/publications/12d567b9-57f2-4992-aeea-20cc5f2ce55f https://doi.org/10.5194/tcd-8-3829-2014 https://backend.orbit.dtu.dk/ws/files/99555275/GPS_based_surface_displacements_a_proxy_for_discharge_and_sediment_transport_from_the_Greenland_Ice_Sheet.pdf |
long_lat |
ENVELOPE(-55.633,-55.633,72.633,72.633) ENVELOPE(-50.714,-50.714,67.012,67.012) |
geographic |
Greenland Kangerlussuaq Kangerlussuaq Airport |
geographic_facet |
Greenland Kangerlussuaq Kangerlussuaq Airport |
genre |
Greenland Ice Sheet Kangerlussuaq The Cryosphere The Cryosphere Discussions |
genre_facet |
Greenland Ice Sheet Kangerlussuaq The Cryosphere The Cryosphere Discussions |
op_source |
Hasholt , B , Khan , S A & Mikkelsen , A B 2014 , ' GPS based surface displacements – a proxy for discharge and sediment transport from the Greenland Ice Sheet ' , The Cryosphere Discussions , vol. 8 , pp. 3829–3850 . https://doi.org/10.5194/tcd-8-3829-2014 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/tcd-8-3829-2014 |
_version_ |
1766017117334798336 |