Sensitivity of a distributed temperature-radiation index melt model based on AWS observations and surface energy balance fluxes, Hurd Peninsula glaciers, Livingston Island, Antarctica
We use an automatic weather station and surface mass balance dataset spanning four melt seasons collected on Hurd Peninsula Glaciers, South Shetland Islands, to investigate the point surface energy balance, to determine the absolute and relative contribution of the various energy fluxes acting on the...
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ftunivpmadrid:oai:oa.upm.es:14171 2023-06-11T04:06:44+02:00 Sensitivity of a distributed temperature-radiation index melt model based on AWS observations and surface energy balance fluxes, Hurd Peninsula glaciers, Livingston Island, Antarctica Jonsell, Ulf Navarro Valero, Francisco José Bañón, Manolo Lapazaran Izargain, Javier Jesús Otero García, Jaime 2012 application/pdf https://oa.upm.es/14171/ eng eng E.T.S.I. Telecomunicación (UPM) http://www.the-cryosphere.net/6/issue3.html info:eu-repo/semantics/altIdentifier/doi/10.5194/tc-6-539-2012 https://oa.upm.es/14171/ https://creativecommons.org/licenses/by-nc-nd/3.0/es/ info:eu-repo/semantics/openAccess The Cryosphere, ISSN 1994-0416, 2012, Vol. 6, No. 3 Geología info:eu-repo/semantics/article Artículo PeerReviewed 2012 ftunivpmadrid https://doi.org/10.5194/tc-6-539-2012 2023-04-18T23:15:39Z We use an automatic weather station and surface mass balance dataset spanning four melt seasons collected on Hurd Peninsula Glaciers, South Shetland Islands, to investigate the point surface energy balance, to determine the absolute and relative contribution of the various energy fluxes acting on the glacier surface and to estimate the sensitivity of melt to ambient temperature changes. Long-wave incoming radiation is the main energy source for melt, while short-wave radiation is the most important flux controlling the variation of both seasonal and daily mean surface energy balance. Short-wave and long-wave radiation fluxes do, in general, balance each other, resulting in a high correspondence between daily mean net radiation flux and available melt energy flux. We calibrate a distributed melt model driven by air temperature and an expression for the incoming short-wave radiation. The model is calibrated with the data from one of the melt seasons and validated with the data of the three remaining seasons. The model results deviate at most 140 mm w.e. from the corresponding observations using the glaciological method. The model is very sensitive to changes in ambient temperature: a 0.5 ◦ C increase results in 56 % higher melt rates. Article in Journal/Newspaper Antarc* Antarctica Livingston Island South Shetland Islands The Cryosphere Archivo Digital UPM (Universidad Politécnica de Madrid) South Shetland Islands Livingston Island ENVELOPE(-60.500,-60.500,-62.600,-62.600) Hurd ENVELOPE(-60.366,-60.366,-62.682,-62.682) Hurd peninsula ENVELOPE(-60.366,-60.366,-62.676,-62.676) The Cryosphere 6 3 539 552 |
institution |
Open Polar |
collection |
Archivo Digital UPM (Universidad Politécnica de Madrid) |
op_collection_id |
ftunivpmadrid |
language |
English |
topic |
Geología |
spellingShingle |
Geología Jonsell, Ulf Navarro Valero, Francisco José Bañón, Manolo Lapazaran Izargain, Javier Jesús Otero García, Jaime Sensitivity of a distributed temperature-radiation index melt model based on AWS observations and surface energy balance fluxes, Hurd Peninsula glaciers, Livingston Island, Antarctica |
topic_facet |
Geología |
description |
We use an automatic weather station and surface mass balance dataset spanning four melt seasons collected on Hurd Peninsula Glaciers, South Shetland Islands, to investigate the point surface energy balance, to determine the absolute and relative contribution of the various energy fluxes acting on the glacier surface and to estimate the sensitivity of melt to ambient temperature changes. Long-wave incoming radiation is the main energy source for melt, while short-wave radiation is the most important flux controlling the variation of both seasonal and daily mean surface energy balance. Short-wave and long-wave radiation fluxes do, in general, balance each other, resulting in a high correspondence between daily mean net radiation flux and available melt energy flux. We calibrate a distributed melt model driven by air temperature and an expression for the incoming short-wave radiation. The model is calibrated with the data from one of the melt seasons and validated with the data of the three remaining seasons. The model results deviate at most 140 mm w.e. from the corresponding observations using the glaciological method. The model is very sensitive to changes in ambient temperature: a 0.5 ◦ C increase results in 56 % higher melt rates. |
format |
Article in Journal/Newspaper |
author |
Jonsell, Ulf Navarro Valero, Francisco José Bañón, Manolo Lapazaran Izargain, Javier Jesús Otero García, Jaime |
author_facet |
Jonsell, Ulf Navarro Valero, Francisco José Bañón, Manolo Lapazaran Izargain, Javier Jesús Otero García, Jaime |
author_sort |
Jonsell, Ulf |
title |
Sensitivity of a distributed temperature-radiation index melt model based on AWS observations and surface energy balance fluxes, Hurd Peninsula glaciers, Livingston Island, Antarctica |
title_short |
Sensitivity of a distributed temperature-radiation index melt model based on AWS observations and surface energy balance fluxes, Hurd Peninsula glaciers, Livingston Island, Antarctica |
title_full |
Sensitivity of a distributed temperature-radiation index melt model based on AWS observations and surface energy balance fluxes, Hurd Peninsula glaciers, Livingston Island, Antarctica |
title_fullStr |
Sensitivity of a distributed temperature-radiation index melt model based on AWS observations and surface energy balance fluxes, Hurd Peninsula glaciers, Livingston Island, Antarctica |
title_full_unstemmed |
Sensitivity of a distributed temperature-radiation index melt model based on AWS observations and surface energy balance fluxes, Hurd Peninsula glaciers, Livingston Island, Antarctica |
title_sort |
sensitivity of a distributed temperature-radiation index melt model based on aws observations and surface energy balance fluxes, hurd peninsula glaciers, livingston island, antarctica |
publisher |
E.T.S.I. Telecomunicación (UPM) |
publishDate |
2012 |
url |
https://oa.upm.es/14171/ |
long_lat |
ENVELOPE(-60.500,-60.500,-62.600,-62.600) ENVELOPE(-60.366,-60.366,-62.682,-62.682) ENVELOPE(-60.366,-60.366,-62.676,-62.676) |
geographic |
South Shetland Islands Livingston Island Hurd Hurd peninsula |
geographic_facet |
South Shetland Islands Livingston Island Hurd Hurd peninsula |
genre |
Antarc* Antarctica Livingston Island South Shetland Islands The Cryosphere |
genre_facet |
Antarc* Antarctica Livingston Island South Shetland Islands The Cryosphere |
op_source |
The Cryosphere, ISSN 1994-0416, 2012, Vol. 6, No. 3 |
op_relation |
http://www.the-cryosphere.net/6/issue3.html info:eu-repo/semantics/altIdentifier/doi/10.5194/tc-6-539-2012 https://oa.upm.es/14171/ |
op_rights |
https://creativecommons.org/licenses/by-nc-nd/3.0/es/ info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/tc-6-539-2012 |
container_title |
The Cryosphere |
container_volume |
6 |
container_issue |
3 |
container_start_page |
539 |
op_container_end_page |
552 |
_version_ |
1768378816896434176 |