Comparison between Atmospheric Reanalysis Models ERA5 and ERA-Interim at the North Antarctic Peninsula Region
The availability of accurate meteorological data is important for the modeling of atmospheric flows, enabling the understanding of climate change in a given environment over time. Therefore, this study aimed to evaluate the quality of the meteorological data of 2 m temperature (T) and mean sea level...
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ftunivfrgs:oai:www.lume.ufrgs.br:10183/242050 2023-05-15T14:04:08+02:00 Comparison between Atmospheric Reanalysis Models ERA5 and ERA-Interim at the North Antarctic Peninsula Region Hillebrand , Fernando Luis Bremer, Ulisses Franz Arigony Neto, Jorge Rosa, Cristiano Niederauer da Mendes Junior, Claudio Wilson Costi, Juliana Freitas, Marcos Wellausen Dias de Schardong, Frederico 2021 application/pdf http://hdl.handle.net/10183/242050 eng eng Annals of the association of american geographers. Vol. 111, n. 4 (2021), 13 p. 0004-5608 http://hdl.handle.net/10183/242050 001124896 Restricted Access Temperatura do ar Mudanças climáticas : Antártica Pressao atmosferica Análise estatística Weather stations Artigo de periódico Estrangeiro 2021 ftunivfrgs 2022-07-09T23:15:11Z The availability of accurate meteorological data is important for the modeling of atmospheric flows, enabling the understanding of climate change in a given environment over time. Therefore, this study aimed to evaluate the quality of the meteorological data of 2 m temperature (T) and mean sea level pressure (MSLP), obtained through the atmospheric reanalysis models ERA5 and ERA-Interim (ERA-i) in the northern region of the Antarctic Peninsula, covering the period from 1979 to 2018. To carry out the statistical process, local observations from nine weather stations installed in the study region were used, with data available from the Scientific Committee on Antarctic Research. Statistical analysis evaluated Pearson’s linear correlation coefficient (R), standard deviation (r), normalized bias, normalized mean absolute error, and normalized root mean square error. Regarding the difference in T between weather stations and reanalysis models, we found a better result for ERA5 (DT ¼ 0.34 C) compared to ERA-i (DT ¼ 0.37 C); however, for the difference in MSLP the ERA-i (DMSLP ¼ 0.04 hPa) presented a better response in relation to ERA5 (DMSLP ¼ 0.24 hPa). When verifying the local meteorological observations trend, an increase of T in 0.31 C decade 1 (Esperanza station) and a reduction of MSLP between 0.56 (Bellingshausen station) and 0.80 hPa decade 1 (Jubany station) were recorded. Key Words: air temperature, Antarctic, atmospheric pressure, weather stations. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antártica Scientific Committee on Antarctic Research Universidade Federal do Rio Grande do Sul (UFRGS): Lume Antarctic Antarctic Peninsula Bellingshausen Station ENVELOPE(-58.950,-58.950,-62.183,-62.183) Esperanza ENVELOPE(-56.983,-56.983,-63.400,-63.400) Esperanza Station ENVELOPE(-56.996,-56.996,-63.395,-63.395) The Antarctic |
institution |
Open Polar |
collection |
Universidade Federal do Rio Grande do Sul (UFRGS): Lume |
op_collection_id |
ftunivfrgs |
language |
English |
topic |
Temperatura do ar Mudanças climáticas : Antártica Pressao atmosferica Análise estatística Weather stations |
spellingShingle |
Temperatura do ar Mudanças climáticas : Antártica Pressao atmosferica Análise estatística Weather stations Hillebrand , Fernando Luis Bremer, Ulisses Franz Arigony Neto, Jorge Rosa, Cristiano Niederauer da Mendes Junior, Claudio Wilson Costi, Juliana Freitas, Marcos Wellausen Dias de Schardong, Frederico Comparison between Atmospheric Reanalysis Models ERA5 and ERA-Interim at the North Antarctic Peninsula Region |
topic_facet |
Temperatura do ar Mudanças climáticas : Antártica Pressao atmosferica Análise estatística Weather stations |
description |
The availability of accurate meteorological data is important for the modeling of atmospheric flows, enabling the understanding of climate change in a given environment over time. Therefore, this study aimed to evaluate the quality of the meteorological data of 2 m temperature (T) and mean sea level pressure (MSLP), obtained through the atmospheric reanalysis models ERA5 and ERA-Interim (ERA-i) in the northern region of the Antarctic Peninsula, covering the period from 1979 to 2018. To carry out the statistical process, local observations from nine weather stations installed in the study region were used, with data available from the Scientific Committee on Antarctic Research. Statistical analysis evaluated Pearson’s linear correlation coefficient (R), standard deviation (r), normalized bias, normalized mean absolute error, and normalized root mean square error. Regarding the difference in T between weather stations and reanalysis models, we found a better result for ERA5 (DT ¼ 0.34 C) compared to ERA-i (DT ¼ 0.37 C); however, for the difference in MSLP the ERA-i (DMSLP ¼ 0.04 hPa) presented a better response in relation to ERA5 (DMSLP ¼ 0.24 hPa). When verifying the local meteorological observations trend, an increase of T in 0.31 C decade 1 (Esperanza station) and a reduction of MSLP between 0.56 (Bellingshausen station) and 0.80 hPa decade 1 (Jubany station) were recorded. Key Words: air temperature, Antarctic, atmospheric pressure, weather stations. |
format |
Article in Journal/Newspaper |
author |
Hillebrand , Fernando Luis Bremer, Ulisses Franz Arigony Neto, Jorge Rosa, Cristiano Niederauer da Mendes Junior, Claudio Wilson Costi, Juliana Freitas, Marcos Wellausen Dias de Schardong, Frederico |
author_facet |
Hillebrand , Fernando Luis Bremer, Ulisses Franz Arigony Neto, Jorge Rosa, Cristiano Niederauer da Mendes Junior, Claudio Wilson Costi, Juliana Freitas, Marcos Wellausen Dias de Schardong, Frederico |
author_sort |
Hillebrand , Fernando Luis |
title |
Comparison between Atmospheric Reanalysis Models ERA5 and ERA-Interim at the North Antarctic Peninsula Region |
title_short |
Comparison between Atmospheric Reanalysis Models ERA5 and ERA-Interim at the North Antarctic Peninsula Region |
title_full |
Comparison between Atmospheric Reanalysis Models ERA5 and ERA-Interim at the North Antarctic Peninsula Region |
title_fullStr |
Comparison between Atmospheric Reanalysis Models ERA5 and ERA-Interim at the North Antarctic Peninsula Region |
title_full_unstemmed |
Comparison between Atmospheric Reanalysis Models ERA5 and ERA-Interim at the North Antarctic Peninsula Region |
title_sort |
comparison between atmospheric reanalysis models era5 and era-interim at the north antarctic peninsula region |
publishDate |
2021 |
url |
http://hdl.handle.net/10183/242050 |
long_lat |
ENVELOPE(-58.950,-58.950,-62.183,-62.183) ENVELOPE(-56.983,-56.983,-63.400,-63.400) ENVELOPE(-56.996,-56.996,-63.395,-63.395) |
geographic |
Antarctic Antarctic Peninsula Bellingshausen Station Esperanza Esperanza Station The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula Bellingshausen Station Esperanza Esperanza Station The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula Antártica Scientific Committee on Antarctic Research |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antártica Scientific Committee on Antarctic Research |
op_relation |
Annals of the association of american geographers. Vol. 111, n. 4 (2021), 13 p. 0004-5608 http://hdl.handle.net/10183/242050 001124896 |
op_rights |
Restricted Access |
_version_ |
1766275137006469120 |