Comparison of 850-hPa relative humidity between ERA-40 and NCEP/NCAR re-analyses: detection of suspicious data in ERA-40
[Departement_IRSTEA]Eaux [TR1_IRSTEA]ARCEAU International audience An exploratory study is performed on the 850-hPa relative humidity data (RH850) extracted from the Re-Analysis Project (ERA-40) and National Centers for Environmental Prediction (NCEP)/National Center for Atmospheric Research (NCAR)...
Published in: | Atmospheric Science Letters |
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Online Access: | https://hal-insu.archives-ouvertes.fr/insu-00411903 https://doi.org/10.1002/asl.208 |
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ftunivnantes:oai:HAL:insu-00411903v1 2023-05-15T17:32:45+02:00 Comparison of 850-hPa relative humidity between ERA-40 and NCEP/NCAR re-analyses: detection of suspicious data in ERA-40 Ben Daoud, Aurélien Sauquet, Eric Lang, Michel Obled, Charles Bontron, Guillaume Hydrologie-Hydraulique (UR HHLY) Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA) Laboratoire d'étude des transferts en hydrologie et environnement (LTHE) Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique de Grenoble (INPG)-Centre National de la Recherche Scientifique (CNRS) Compagnie Nationale du Rhône (CNR) 2009-03 https://hal-insu.archives-ouvertes.fr/insu-00411903 https://doi.org/10.1002/asl.208 en eng HAL CCSD Wiley info:eu-repo/semantics/altIdentifier/doi/10.1002/asl.208 insu-00411903 https://hal-insu.archives-ouvertes.fr/insu-00411903 doi:10.1002/asl.208 IRSTEA: PUB00026017 ISSN: 1530-261X EISSN: 1530-261X Atmospheric Science Letters https://hal-insu.archives-ouvertes.fr/insu-00411903 Atmospheric Science Letters, 2009, 10 (1), pp.43-47. ⟨10.1002/asl.208⟩ relative humidity re-analyses ERA-40 NCEP/NCAR western Europe radio sounding anomalous values [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDE.MCG]Environmental Sciences/Global Changes info:eu-repo/semantics/article Journal articles 2009 ftunivnantes https://doi.org/10.1002/asl.208 2023-03-01T00:44:15Z [Departement_IRSTEA]Eaux [TR1_IRSTEA]ARCEAU International audience An exploratory study is performed on the 850-hPa relative humidity data (RH850) extracted from the Re-Analysis Project (ERA-40) and National Centers for Environmental Prediction (NCEP)/National Center for Atmospheric Research (NCAR) re-analyses covering a domain centred on western Europe (60°W-60°E, 15°N-75°N). The largest deviations between the two data archives are observed over the North Atlantic Ocean. In addition, unrealistic values of RH850 are detected in the ERA-40 re-analysis at resolutions of both 2.5° and 1.125°. There is no strong correlation between RH850 provided by ERA-40 and observations from radio sounding stations, thus ruling out a straightforward correction of the detected anomalous values. Copyright © 2009 Royal Meteorological Society Article in Journal/Newspaper North Atlantic Université de Nantes: HAL-UNIV-NANTES Atmospheric Science Letters 10 1 43 47 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
relative humidity re-analyses ERA-40 NCEP/NCAR western Europe radio sounding anomalous values [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDE.MCG]Environmental Sciences/Global Changes |
spellingShingle |
relative humidity re-analyses ERA-40 NCEP/NCAR western Europe radio sounding anomalous values [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDE.MCG]Environmental Sciences/Global Changes Ben Daoud, Aurélien Sauquet, Eric Lang, Michel Obled, Charles Bontron, Guillaume Comparison of 850-hPa relative humidity between ERA-40 and NCEP/NCAR re-analyses: detection of suspicious data in ERA-40 |
topic_facet |
relative humidity re-analyses ERA-40 NCEP/NCAR western Europe radio sounding anomalous values [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDE.MCG]Environmental Sciences/Global Changes |
description |
[Departement_IRSTEA]Eaux [TR1_IRSTEA]ARCEAU International audience An exploratory study is performed on the 850-hPa relative humidity data (RH850) extracted from the Re-Analysis Project (ERA-40) and National Centers for Environmental Prediction (NCEP)/National Center for Atmospheric Research (NCAR) re-analyses covering a domain centred on western Europe (60°W-60°E, 15°N-75°N). The largest deviations between the two data archives are observed over the North Atlantic Ocean. In addition, unrealistic values of RH850 are detected in the ERA-40 re-analysis at resolutions of both 2.5° and 1.125°. There is no strong correlation between RH850 provided by ERA-40 and observations from radio sounding stations, thus ruling out a straightforward correction of the detected anomalous values. Copyright © 2009 Royal Meteorological Society |
author2 |
Hydrologie-Hydraulique (UR HHLY) Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA) Laboratoire d'étude des transferts en hydrologie et environnement (LTHE) Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique de Grenoble (INPG)-Centre National de la Recherche Scientifique (CNRS) Compagnie Nationale du Rhône (CNR) |
format |
Article in Journal/Newspaper |
author |
Ben Daoud, Aurélien Sauquet, Eric Lang, Michel Obled, Charles Bontron, Guillaume |
author_facet |
Ben Daoud, Aurélien Sauquet, Eric Lang, Michel Obled, Charles Bontron, Guillaume |
author_sort |
Ben Daoud, Aurélien |
title |
Comparison of 850-hPa relative humidity between ERA-40 and NCEP/NCAR re-analyses: detection of suspicious data in ERA-40 |
title_short |
Comparison of 850-hPa relative humidity between ERA-40 and NCEP/NCAR re-analyses: detection of suspicious data in ERA-40 |
title_full |
Comparison of 850-hPa relative humidity between ERA-40 and NCEP/NCAR re-analyses: detection of suspicious data in ERA-40 |
title_fullStr |
Comparison of 850-hPa relative humidity between ERA-40 and NCEP/NCAR re-analyses: detection of suspicious data in ERA-40 |
title_full_unstemmed |
Comparison of 850-hPa relative humidity between ERA-40 and NCEP/NCAR re-analyses: detection of suspicious data in ERA-40 |
title_sort |
comparison of 850-hpa relative humidity between era-40 and ncep/ncar re-analyses: detection of suspicious data in era-40 |
publisher |
HAL CCSD |
publishDate |
2009 |
url |
https://hal-insu.archives-ouvertes.fr/insu-00411903 https://doi.org/10.1002/asl.208 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
ISSN: 1530-261X EISSN: 1530-261X Atmospheric Science Letters https://hal-insu.archives-ouvertes.fr/insu-00411903 Atmospheric Science Letters, 2009, 10 (1), pp.43-47. ⟨10.1002/asl.208⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1002/asl.208 insu-00411903 https://hal-insu.archives-ouvertes.fr/insu-00411903 doi:10.1002/asl.208 IRSTEA: PUB00026017 |
op_doi |
https://doi.org/10.1002/asl.208 |
container_title |
Atmospheric Science Letters |
container_volume |
10 |
container_issue |
1 |
container_start_page |
43 |
op_container_end_page |
47 |
_version_ |
1766131013823496192 |