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 th...
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ftdoajarticles:oai:doaj.org/article:fd9244af74b4437e91768baa0b39eacf 2023-05-15T13:59:28+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 U. Y. Jonsell F. J. Navarro M. Bañón J. J. Lapazaran J. Otero 2012-05-01T00:00:00Z https://doi.org/10.5194/tc-6-539-2012 https://doaj.org/article/fd9244af74b4437e91768baa0b39eacf EN eng Copernicus Publications http://www.the-cryosphere.net/6/539/2012/tc-6-539-2012.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 doi:10.5194/tc-6-539-2012 1994-0416 1994-0424 https://doaj.org/article/fd9244af74b4437e91768baa0b39eacf The Cryosphere, Vol 6, Iss 3, Pp 539-552 (2012) Environmental sciences GE1-350 Geology QE1-996.5 article 2012 ftdoajarticles https://doi.org/10.5194/tc-6-539-2012 2022-12-31T06:32:09Z 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 Directory of Open Access Journals: DOAJ Articles Hurd ENVELOPE(-60.366,-60.366,-62.682,-62.682) Hurd peninsula ENVELOPE(-60.366,-60.366,-62.676,-62.676) Livingston Island ENVELOPE(-60.500,-60.500,-62.600,-62.600) South Shetland Islands The Cryosphere 6 3 539 552 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental sciences GE1-350 Geology QE1-996.5 |
spellingShingle |
Environmental sciences GE1-350 Geology QE1-996.5 U. Y. Jonsell F. J. Navarro M. Bañón J. J. Lapazaran J. Otero 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 |
Environmental sciences GE1-350 Geology QE1-996.5 |
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 |
U. Y. Jonsell F. J. Navarro M. Bañón J. J. Lapazaran J. Otero |
author_facet |
U. Y. Jonsell F. J. Navarro M. Bañón J. J. Lapazaran J. Otero |
author_sort |
U. Y. Jonsell |
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 |
Copernicus Publications |
publishDate |
2012 |
url |
https://doi.org/10.5194/tc-6-539-2012 https://doaj.org/article/fd9244af74b4437e91768baa0b39eacf |
long_lat |
ENVELOPE(-60.366,-60.366,-62.682,-62.682) ENVELOPE(-60.366,-60.366,-62.676,-62.676) ENVELOPE(-60.500,-60.500,-62.600,-62.600) |
geographic |
Hurd Hurd peninsula Livingston Island South Shetland Islands |
geographic_facet |
Hurd Hurd peninsula Livingston Island South Shetland Islands |
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, Vol 6, Iss 3, Pp 539-552 (2012) |
op_relation |
http://www.the-cryosphere.net/6/539/2012/tc-6-539-2012.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 doi:10.5194/tc-6-539-2012 1994-0416 1994-0424 https://doaj.org/article/fd9244af74b4437e91768baa0b39eacf |
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_ |
1766268036418895872 |