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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ftdoajarticles:oai:doaj.org/article:6afda579a9604292af77c333ef1add55 2023-05-15T13:48:14+02:00 Quantifying the snowmelt–albedo feedback at Neumayer Station, East Antarctica C. L. Jakobs C. H. Reijmer P. Kuipers Munneke G. König-Langlo M. R. van den Broeke 2019-05-01T00:00:00Z https://doi.org/10.5194/tc-13-1473-2019 https://doaj.org/article/6afda579a9604292af77c333ef1add55 EN eng Copernicus Publications https://www.the-cryosphere.net/13/1473/2019/tc-13-1473-2019.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 doi:10.5194/tc-13-1473-2019 1994-0416 1994-0424 https://doaj.org/article/6afda579a9604292af77c333ef1add55 The Cryosphere, Vol 13, Pp 1473-1485 (2019) Environmental sciences GE1-350 Geology QE1-996.5 article 2019 ftdoajarticles https://doi.org/10.5194/tc-13-1473-2019 2022-12-31T14:47:26Z 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 Directory of Open Access Journals: DOAJ Articles East Antarctica Neumayer Neumayer Station The Cryosphere 13 5 1473 1485 |
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 C. L. Jakobs C. H. Reijmer P. Kuipers Munneke G. König-Langlo M. R. van den Broeke Quantifying the snowmelt–albedo feedback at Neumayer Station, East Antarctica |
topic_facet |
Environmental sciences GE1-350 Geology QE1-996.5 |
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 |
C. L. Jakobs C. H. Reijmer P. Kuipers Munneke G. König-Langlo M. R. van den Broeke |
author_facet |
C. L. Jakobs C. H. Reijmer P. Kuipers Munneke G. König-Langlo M. R. van den Broeke |
author_sort |
C. L. Jakobs |
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://doaj.org/article/6afda579a9604292af77c333ef1add55 |
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_source |
The Cryosphere, Vol 13, Pp 1473-1485 (2019) |
op_relation |
https://www.the-cryosphere.net/13/1473/2019/tc-13-1473-2019.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 doi:10.5194/tc-13-1473-2019 1994-0416 1994-0424 https://doaj.org/article/6afda579a9604292af77c333ef1add55 |
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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1766249017589628928 |