Tropical stratospheric zonal winds in ECMWF ERA-40 reanalysis, rocketsonde data, and rawinsonde data

ECMWF ERA-40 reanalysis zonal winds are very close to tropical rocketsonde and rawinsonde (radiosonde and radar wind soundings) observations up to 10 hPa. Above 10 hPa differences increase, although the ERA-40 data provide a good representation of tropical winds up to 2-3 hPa. The amplitudes of the...

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Main Authors: Baldwin, M, Gray, L
Format: Journal article
Language:English
Published: 2005
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author Baldwin, M
Gray, L
author_facet Baldwin, M
Gray, L
author_sort Baldwin, M
collection OXFORD
description ECMWF ERA-40 reanalysis zonal winds are very close to tropical rocketsonde and rawinsonde (radiosonde and radar wind soundings) observations up to 10 hPa. Above 10 hPa differences increase, although the ERA-40 data provide a good representation of tropical winds up to 2-3 hPa. The amplitudes of the quasi-biennial oscillation (QBO) and the semi-annual oscillation (SAO) derived from ERA-40 data match the rawinsonde and rocketsonde observations up to 2-3 hPa. We conclude that zonal-mean ERA-40 equatorial winds could be used, for most purposes, in place of rawinsonde station observations. Copyright 2005 by the American Geophysical Union.
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spelling oxford-uuid:67a2b81a-d540-4bd2-b30c-5cb46a4fc88f2022-03-26T18:39:33ZTropical stratospheric zonal winds in ECMWF ERA-40 reanalysis, rocketsonde data, and rawinsonde dataJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:67a2b81a-d540-4bd2-b30c-5cb46a4fc88fEnglishSymplectic Elements at Oxford2005Baldwin, MGray, LECMWF ERA-40 reanalysis zonal winds are very close to tropical rocketsonde and rawinsonde (radiosonde and radar wind soundings) observations up to 10 hPa. Above 10 hPa differences increase, although the ERA-40 data provide a good representation of tropical winds up to 2-3 hPa. The amplitudes of the quasi-biennial oscillation (QBO) and the semi-annual oscillation (SAO) derived from ERA-40 data match the rawinsonde and rocketsonde observations up to 2-3 hPa. We conclude that zonal-mean ERA-40 equatorial winds could be used, for most purposes, in place of rawinsonde station observations. Copyright 2005 by the American Geophysical Union.
spellingShingle Baldwin, M
Gray, L
Tropical stratospheric zonal winds in ECMWF ERA-40 reanalysis, rocketsonde data, and rawinsonde data
title Tropical stratospheric zonal winds in ECMWF ERA-40 reanalysis, rocketsonde data, and rawinsonde data
title_full Tropical stratospheric zonal winds in ECMWF ERA-40 reanalysis, rocketsonde data, and rawinsonde data
title_fullStr Tropical stratospheric zonal winds in ECMWF ERA-40 reanalysis, rocketsonde data, and rawinsonde data
title_full_unstemmed Tropical stratospheric zonal winds in ECMWF ERA-40 reanalysis, rocketsonde data, and rawinsonde data
title_short Tropical stratospheric zonal winds in ECMWF ERA-40 reanalysis, rocketsonde data, and rawinsonde data
title_sort tropical stratospheric zonal winds in ecmwf era 40 reanalysis rocketsonde data and rawinsonde data
work_keys_str_mv AT baldwinm tropicalstratosphericzonalwindsinecmwfera40reanalysisrocketsondedataandrawinsondedata
AT grayl tropicalstratosphericzonalwindsinecmwfera40reanalysisrocketsondedataandrawinsondedata