Stratospheric water vapour in the vicinity of the Arctic polar vortex
International audience The stratospheric water vapour mixing ratio inside, outside, and at the edge of the polar vortex has been accurately measured by the FLASH-B Lyman-Alpha hygrometer during the LAUTLOS campaign in Sodankylä, Finland, in January and February 2004. The retrieved H 2 O profiles rev...
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ftinsu:oai:HAL:hal-00330069v1 2024-02-11T10:00:46+01:00 Stratospheric water vapour in the vicinity of the Arctic polar vortex Maturilli, M. Fierli, Federico Yushkov, V. Lukyanov, A. Khaykin, Sergey Hauchecorne, Alain Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung = Alfred Wegener Institute for Polar and Marine Research = Institut Alfred-Wegener pour la recherche polaire et marine (AWI) Helmholtz-Gemeinschaft = Helmholtz Association CNR Institute of Atmospheric Sciences and Climate (ISAC) National Research Council of Italy Central Aerological Observatory (CAO) Russian Federal Service for Hydrometeorology and Environmental Monitoring (Roshydromet) Service d'aéronomie (SA) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) 2006-07-03 https://hal.science/hal-00330069 https://hal.science/hal-00330069/document https://hal.science/hal-00330069/file/angeo-24-1511-2006.pdf en eng HAL CCSD European Geosciences Union hal-00330069 https://hal.science/hal-00330069 https://hal.science/hal-00330069/document https://hal.science/hal-00330069/file/angeo-24-1511-2006.pdf info:eu-repo/semantics/OpenAccess ISSN: 0992-7689 EISSN: 1432-0576 Annales Geophysicae https://hal.science/hal-00330069 Annales Geophysicae, 2006, 24 (6), pp.1511-1521 [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/article Journal articles 2006 ftinsu 2024-01-17T17:26:28Z International audience The stratospheric water vapour mixing ratio inside, outside, and at the edge of the polar vortex has been accurately measured by the FLASH-B Lyman-Alpha hygrometer during the LAUTLOS campaign in Sodankylä, Finland, in January and February 2004. The retrieved H 2 O profiles reveal a detailed view on the Arctic lower stratospheric water vapour distribution, and provide a valuable dataset for the validation of model and satellite data. Analysing the measurements with the semi-lagrangian advection model MIMOSA, water vapour profiles typical for the polar vortex' interior and exterior have been identified, and laminae in the observed profiles have been correlated to filamentary structures in the potential vorticity field. Applying the validated MIMOSA transport scheme to specific humidity fields from operational ECMWF analyses, large discrepancies from the observed profiles arise. Although MIMOSA is able to reproduce weak water vapour filaments and improves the shape of the profiles compared to operational ECMWF analyses, both models reveal a dry bias of about 1 ppmv in the lower stratosphere above 400 K, accounting for a relative difference from the measurements in the order of 20%. The large dry bias in the analysis representation of stratospheric water vapour in the Arctic implies the need for future regular measurements of water vapour in the polar stratosphere to allow the validation and improvement of climate models. Article in Journal/Newspaper Arctic Sodankylä Institut national des sciences de l'Univers: HAL-INSU Arctic Sodankylä ENVELOPE(26.600,26.600,67.417,67.417) |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences Maturilli, M. Fierli, Federico Yushkov, V. Lukyanov, A. Khaykin, Sergey Hauchecorne, Alain Stratospheric water vapour in the vicinity of the Arctic polar vortex |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
International audience The stratospheric water vapour mixing ratio inside, outside, and at the edge of the polar vortex has been accurately measured by the FLASH-B Lyman-Alpha hygrometer during the LAUTLOS campaign in Sodankylä, Finland, in January and February 2004. The retrieved H 2 O profiles reveal a detailed view on the Arctic lower stratospheric water vapour distribution, and provide a valuable dataset for the validation of model and satellite data. Analysing the measurements with the semi-lagrangian advection model MIMOSA, water vapour profiles typical for the polar vortex' interior and exterior have been identified, and laminae in the observed profiles have been correlated to filamentary structures in the potential vorticity field. Applying the validated MIMOSA transport scheme to specific humidity fields from operational ECMWF analyses, large discrepancies from the observed profiles arise. Although MIMOSA is able to reproduce weak water vapour filaments and improves the shape of the profiles compared to operational ECMWF analyses, both models reveal a dry bias of about 1 ppmv in the lower stratosphere above 400 K, accounting for a relative difference from the measurements in the order of 20%. The large dry bias in the analysis representation of stratospheric water vapour in the Arctic implies the need for future regular measurements of water vapour in the polar stratosphere to allow the validation and improvement of climate models. |
author2 |
Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung = Alfred Wegener Institute for Polar and Marine Research = Institut Alfred-Wegener pour la recherche polaire et marine (AWI) Helmholtz-Gemeinschaft = Helmholtz Association CNR Institute of Atmospheric Sciences and Climate (ISAC) National Research Council of Italy Central Aerological Observatory (CAO) Russian Federal Service for Hydrometeorology and Environmental Monitoring (Roshydromet) Service d'aéronomie (SA) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Maturilli, M. Fierli, Federico Yushkov, V. Lukyanov, A. Khaykin, Sergey Hauchecorne, Alain |
author_facet |
Maturilli, M. Fierli, Federico Yushkov, V. Lukyanov, A. Khaykin, Sergey Hauchecorne, Alain |
author_sort |
Maturilli, M. |
title |
Stratospheric water vapour in the vicinity of the Arctic polar vortex |
title_short |
Stratospheric water vapour in the vicinity of the Arctic polar vortex |
title_full |
Stratospheric water vapour in the vicinity of the Arctic polar vortex |
title_fullStr |
Stratospheric water vapour in the vicinity of the Arctic polar vortex |
title_full_unstemmed |
Stratospheric water vapour in the vicinity of the Arctic polar vortex |
title_sort |
stratospheric water vapour in the vicinity of the arctic polar vortex |
publisher |
HAL CCSD |
publishDate |
2006 |
url |
https://hal.science/hal-00330069 https://hal.science/hal-00330069/document https://hal.science/hal-00330069/file/angeo-24-1511-2006.pdf |
long_lat |
ENVELOPE(26.600,26.600,67.417,67.417) |
geographic |
Arctic Sodankylä |
geographic_facet |
Arctic Sodankylä |
genre |
Arctic Sodankylä |
genre_facet |
Arctic Sodankylä |
op_source |
ISSN: 0992-7689 EISSN: 1432-0576 Annales Geophysicae https://hal.science/hal-00330069 Annales Geophysicae, 2006, 24 (6), pp.1511-1521 |
op_relation |
hal-00330069 https://hal.science/hal-00330069 https://hal.science/hal-00330069/document https://hal.science/hal-00330069/file/angeo-24-1511-2006.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1790596483114860544 |