Aspects of weather parameters at Neumayer station, Antarctica, and their representation in reanalysis and climate model data
ERA-Interim reanalysis data and data of the Hadley Centre Global Environmental Model version 2 (HadGEM2) are compared with continuous meteorological observations of near-surface wind and temperature carried out for more than 30 years at Neumayer station, situated on the Ekström Ice Shelf of Antarcti...
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ftdoajarticles:oai:doaj.org/article:845f957c20fd49bc9ed51bf228eb0edd 2024-09-15T17:43:03+00:00 Aspects of weather parameters at Neumayer station, Antarctica, and their representation in reanalysis and climate model data Milan Klöwer Thomas Jung Gert König-Langlo Tido Semmler 2013-12-01T00:00:00Z https://doi.org/10.1127/0941-2948/2013/0505 https://doaj.org/article/845f957c20fd49bc9ed51bf228eb0edd EN eng Borntraeger http://dx.doi.org/10.1127/0941-2948/2013/0505 https://doaj.org/toc/0941-2948 0941-2948 doi:10.1127/0941-2948/2013/0505 https://doaj.org/article/845f957c20fd49bc9ed51bf228eb0edd Meteorologische Zeitschrift, Vol 22, Iss 6, Pp 699-709 (2013) antarctica climate model katabatic winds neumayer observations reanalysis southern annular mode Meteorology. Climatology QC851-999 article 2013 ftdoajarticles https://doi.org/10.1127/0941-2948/2013/0505 2024-08-05T17:50:05Z ERA-Interim reanalysis data and data of the Hadley Centre Global Environmental Model version 2 (HadGEM2) are compared with continuous meteorological observations of near-surface wind and temperature carried out for more than 30 years at Neumayer station, situated on the Ekström Ice Shelf of Antarctica. Significant temperature correlations between Neumayer climate and the climate of both the interior of the Antarctic continent and oceanic regions north of Neumayer are investigated using observational data and model data. Mean sea level pressure fluctuations at Neumayer can be connected to changes in the Southern Annular Mode (SAM). Shortcomings in the ERA-Interim reanalysis data with spurious trends of up to 7 °C over 31 years are identified at several places in Antarctica. Furthermore, it is shown that katabatic winds in both the ERA-Interim reanalysis data and in the HadGEM2 climate model are underrepresented in frequency and speed, presumably due to the problems in representing topography in these relatively coarse resolution models. This may be one reason for the positive 2m air temperature bias of 3 °C in the models at Neumayer station. The results of this study reemphasize that climatic trends in regions with a low station density can not be assessed solely from model data. Thus, it is absolutely necessary to maintain polar observatories such as Neumayer station to quantify climate change over the Southern Ocean and Antarctica. Article in Journal/Newspaper Antarc* Antarctic Antarctica Ice Shelf Southern Ocean Directory of Open Access Journals: DOAJ Articles Meteorologische Zeitschrift 22 6 699 709 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
antarctica climate model katabatic winds neumayer observations reanalysis southern annular mode Meteorology. Climatology QC851-999 |
spellingShingle |
antarctica climate model katabatic winds neumayer observations reanalysis southern annular mode Meteorology. Climatology QC851-999 Milan Klöwer Thomas Jung Gert König-Langlo Tido Semmler Aspects of weather parameters at Neumayer station, Antarctica, and their representation in reanalysis and climate model data |
topic_facet |
antarctica climate model katabatic winds neumayer observations reanalysis southern annular mode Meteorology. Climatology QC851-999 |
description |
ERA-Interim reanalysis data and data of the Hadley Centre Global Environmental Model version 2 (HadGEM2) are compared with continuous meteorological observations of near-surface wind and temperature carried out for more than 30 years at Neumayer station, situated on the Ekström Ice Shelf of Antarctica. Significant temperature correlations between Neumayer climate and the climate of both the interior of the Antarctic continent and oceanic regions north of Neumayer are investigated using observational data and model data. Mean sea level pressure fluctuations at Neumayer can be connected to changes in the Southern Annular Mode (SAM). Shortcomings in the ERA-Interim reanalysis data with spurious trends of up to 7 °C over 31 years are identified at several places in Antarctica. Furthermore, it is shown that katabatic winds in both the ERA-Interim reanalysis data and in the HadGEM2 climate model are underrepresented in frequency and speed, presumably due to the problems in representing topography in these relatively coarse resolution models. This may be one reason for the positive 2m air temperature bias of 3 °C in the models at Neumayer station. The results of this study reemphasize that climatic trends in regions with a low station density can not be assessed solely from model data. Thus, it is absolutely necessary to maintain polar observatories such as Neumayer station to quantify climate change over the Southern Ocean and Antarctica. |
format |
Article in Journal/Newspaper |
author |
Milan Klöwer Thomas Jung Gert König-Langlo Tido Semmler |
author_facet |
Milan Klöwer Thomas Jung Gert König-Langlo Tido Semmler |
author_sort |
Milan Klöwer |
title |
Aspects of weather parameters at Neumayer station, Antarctica, and their representation in reanalysis and climate model data |
title_short |
Aspects of weather parameters at Neumayer station, Antarctica, and their representation in reanalysis and climate model data |
title_full |
Aspects of weather parameters at Neumayer station, Antarctica, and their representation in reanalysis and climate model data |
title_fullStr |
Aspects of weather parameters at Neumayer station, Antarctica, and their representation in reanalysis and climate model data |
title_full_unstemmed |
Aspects of weather parameters at Neumayer station, Antarctica, and their representation in reanalysis and climate model data |
title_sort |
aspects of weather parameters at neumayer station, antarctica, and their representation in reanalysis and climate model data |
publisher |
Borntraeger |
publishDate |
2013 |
url |
https://doi.org/10.1127/0941-2948/2013/0505 https://doaj.org/article/845f957c20fd49bc9ed51bf228eb0edd |
genre |
Antarc* Antarctic Antarctica Ice Shelf Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica Ice Shelf Southern Ocean |
op_source |
Meteorologische Zeitschrift, Vol 22, Iss 6, Pp 699-709 (2013) |
op_relation |
http://dx.doi.org/10.1127/0941-2948/2013/0505 https://doaj.org/toc/0941-2948 0941-2948 doi:10.1127/0941-2948/2013/0505 https://doaj.org/article/845f957c20fd49bc9ed51bf228eb0edd |
op_doi |
https://doi.org/10.1127/0941-2948/2013/0505 |
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Meteorologische Zeitschrift |
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22 |
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6 |
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699 |
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