Quantifying the snowmelt–albedo feedback at Neumayer Station, East Antarctica
We use 24 years (1992–2016) of high-quality meteorological observations at Neumayer Station, East Antarctica, to force a surface energy balance model. The modelled 24-year cumulative surface melt at Neumayer amounts to 1154 mm water equivalent (w.e.), with only a small uncertainty (±3 mm w.e.) from...
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Copernicus Publications
2019
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00002245 2023-05-15T13:49:21+02:00 Quantifying the snowmelt–albedo feedback at Neumayer Station, East Antarctica Jakobs, Constantijn L. Reijmer, Carleen H. Kuipers Munneke, Peter König-Langlo, Gert van den Broeke, Michiel R. 2019-05 electronic https://doi.org/10.5194/tc-13-1473-2019 https://noa.gwlb.de/receive/cop_mods_00002245 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00002203/tc-13-1473-2019.pdf https://tc.copernicus.org/articles/13/1473/2019/tc-13-1473-2019.pdf eng eng Copernicus Publications The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169 -- http://www.the-cryosphere.net/ -- 1994-0424 https://doi.org/10.5194/tc-13-1473-2019 https://noa.gwlb.de/receive/cop_mods_00002245 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00002203/tc-13-1473-2019.pdf https://tc.copernicus.org/articles/13/1473/2019/tc-13-1473-2019.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess CC-BY article Verlagsveröffentlichung article Text doc-type:article 2019 ftnonlinearchiv https://doi.org/10.5194/tc-13-1473-2019 2022-02-08T23:01:11Z We use 24 years (1992–2016) of high-quality meteorological observations at Neumayer Station, East Antarctica, to force a surface energy balance model. The modelled 24-year cumulative surface melt at Neumayer amounts to 1154 mm water equivalent (w.e.), with only a small uncertainty (±3 mm w.e.) from random measurement errors. Results are more sensitive to the chosen value for the surface momentum roughness length and new snow density, yielding a range of 900–1220 mm w.e. Melt at Neumayer occurs only in the months November to February, with a summer average of 50 mm w.e. and large interannual variability (σ=42 mm w.e.). This is a small value compared to an annual average (1992–2016) accumulation of 415±86 mm w.e. Absorbed shortwave radiation is the dominant driver of temporal melt variability at Neumayer. To assess the importance of the snowmelt–albedo feedback we include and calibrate an albedo parameterisation in the surface energy balance model. We show that, without the snowmelt–albedo feedback, surface melt at Neumayer would be approximately 3 times weaker, demonstrating how important it is to correctly represent this feedback in model simulations of surface melt in Antarctica. Article in Journal/Newspaper Antarc* Antarctica East Antarctica The Cryosphere Niedersächsisches Online-Archiv NOA East Antarctica Neumayer Neumayer Station The Cryosphere 13 5 1473 1485 |
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Open Polar |
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Niedersächsisches Online-Archiv NOA |
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ftnonlinearchiv |
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English |
topic |
article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Jakobs, Constantijn L. Reijmer, Carleen H. Kuipers Munneke, Peter König-Langlo, Gert van den Broeke, Michiel R. Quantifying the snowmelt–albedo feedback at Neumayer Station, East Antarctica |
topic_facet |
article Verlagsveröffentlichung |
description |
We use 24 years (1992–2016) of high-quality meteorological observations at Neumayer Station, East Antarctica, to force a surface energy balance model. The modelled 24-year cumulative surface melt at Neumayer amounts to 1154 mm water equivalent (w.e.), with only a small uncertainty (±3 mm w.e.) from random measurement errors. Results are more sensitive to the chosen value for the surface momentum roughness length and new snow density, yielding a range of 900–1220 mm w.e. Melt at Neumayer occurs only in the months November to February, with a summer average of 50 mm w.e. and large interannual variability (σ=42 mm w.e.). This is a small value compared to an annual average (1992–2016) accumulation of 415±86 mm w.e. Absorbed shortwave radiation is the dominant driver of temporal melt variability at Neumayer. To assess the importance of the snowmelt–albedo feedback we include and calibrate an albedo parameterisation in the surface energy balance model. We show that, without the snowmelt–albedo feedback, surface melt at Neumayer would be approximately 3 times weaker, demonstrating how important it is to correctly represent this feedback in model simulations of surface melt in Antarctica. |
format |
Article in Journal/Newspaper |
author |
Jakobs, Constantijn L. Reijmer, Carleen H. Kuipers Munneke, Peter König-Langlo, Gert van den Broeke, Michiel R. |
author_facet |
Jakobs, Constantijn L. Reijmer, Carleen H. Kuipers Munneke, Peter König-Langlo, Gert van den Broeke, Michiel R. |
author_sort |
Jakobs, Constantijn L. |
title |
Quantifying the snowmelt–albedo feedback at Neumayer Station, East Antarctica |
title_short |
Quantifying the snowmelt–albedo feedback at Neumayer Station, East Antarctica |
title_full |
Quantifying the snowmelt–albedo feedback at Neumayer Station, East Antarctica |
title_fullStr |
Quantifying the snowmelt–albedo feedback at Neumayer Station, East Antarctica |
title_full_unstemmed |
Quantifying the snowmelt–albedo feedback at Neumayer Station, East Antarctica |
title_sort |
quantifying the snowmelt–albedo feedback at neumayer station, east antarctica |
publisher |
Copernicus Publications |
publishDate |
2019 |
url |
https://doi.org/10.5194/tc-13-1473-2019 https://noa.gwlb.de/receive/cop_mods_00002245 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00002203/tc-13-1473-2019.pdf https://tc.copernicus.org/articles/13/1473/2019/tc-13-1473-2019.pdf |
geographic |
East Antarctica Neumayer Neumayer Station |
geographic_facet |
East Antarctica Neumayer Neumayer Station |
genre |
Antarc* Antarctica East Antarctica The Cryosphere |
genre_facet |
Antarc* Antarctica East Antarctica The Cryosphere |
op_relation |
The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169 -- http://www.the-cryosphere.net/ -- 1994-0424 https://doi.org/10.5194/tc-13-1473-2019 https://noa.gwlb.de/receive/cop_mods_00002245 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00002203/tc-13-1473-2019.pdf https://tc.copernicus.org/articles/13/1473/2019/tc-13-1473-2019.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/tc-13-1473-2019 |
container_title |
The Cryosphere |
container_volume |
13 |
container_issue |
5 |
container_start_page |
1473 |
op_container_end_page |
1485 |
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1766251208730738688 |