First steps towards the assimilation of IASI ozone data into the MOCAGE-PALM system
International audience With the use of data assimilation, we study the quality of the Infrared Atmospheric Sounding Interferometer (IASI) total ozone column measurements. The IASI data are provided by the inversion of IASI radiances performed at the Laboratoire ATmosphères, Milieux, Observations Spa...
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ftccsdartic:oai:HAL:hal-00408161v1 2023-05-15T18:02:16+02:00 First steps towards the assimilation of IASI ozone data into the MOCAGE-PALM system Massart, Sébastien Clerbaux, Cathy Cariolle, Daniel Piacentini, Andrea Turquety, Solène Hadji-Lazaro, Juliette Centre Européen de Recherche et de Formation Avancée en Calcul Scientifique (CERFACS) CERFACS TROPO - LATMOS Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS) 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)-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) 2009 https://hal.archives-ouvertes.fr/hal-00408161 https://hal.archives-ouvertes.fr/hal-00408161/document https://hal.archives-ouvertes.fr/hal-00408161/file/acp-9-5073-2009.pdf en eng HAL CCSD European Geosciences Union hal-00408161 https://hal.archives-ouvertes.fr/hal-00408161 https://hal.archives-ouvertes.fr/hal-00408161/document https://hal.archives-ouvertes.fr/hal-00408161/file/acp-9-5073-2009.pdf info:eu-repo/semantics/OpenAccess ISSN: 1680-7316 EISSN: 1680-7324 Atmospheric Chemistry and Physics https://hal.archives-ouvertes.fr/hal-00408161 Atmospheric Chemistry and Physics, European Geosciences Union, 2009, 9 (14), pp.5073-5091 [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] info:eu-repo/semantics/article Journal articles 2009 ftccsdartic 2021-11-21T03:08:27Z International audience With the use of data assimilation, we study the quality of the Infrared Atmospheric Sounding Interferometer (IASI) total ozone column measurements. The IASI data are provided by the inversion of IASI radiances performed at the Laboratoire ATmosphères, Milieux, Observations Spatiales (LATMOS). This data set is initially compared on a five-month period to a three-dimensional time varying ozone field that we take as a reference. This reference field results from the combined assimilation of ozone profiles from the Microwave Limb Sounder (MLS) instrument and of total ozone columns from the SCanning Imaging Absorption spectroMeter for Atmospheric CHartographY (SCIAMACHY) instrument. It has low systematic and random errors when compared to ozonesondes and Ozone Monitoring Instrument (OMI) data. The comparison shows that on average, the LATMOS-IASI data tends to overestimate the total ozone columns by 2% to 8%. The random observation error of the LATMOS-IASI data is estimated to about 7%, except over polar regions and deserts where it is higher. The daytime data have generally lower biases but higher random error than the nighttime data. Using this information, the LATMOS-IASI data are then assimilated, combined with the MLS data. This first LATMOS-IASI data assimilation experiment shows that the resulting analysis is quite similar to the one obtained from the combined MLS and SCIAMACHY data assimilation. The differences are mainly due to the lack of SCIAMACHY measurements during polar night, and to the higher LATMOS-IASI random errors especially over the southern polar region. Article in Journal/Newspaper polar night Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] |
spellingShingle |
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] Massart, Sébastien Clerbaux, Cathy Cariolle, Daniel Piacentini, Andrea Turquety, Solène Hadji-Lazaro, Juliette First steps towards the assimilation of IASI ozone data into the MOCAGE-PALM system |
topic_facet |
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] |
description |
International audience With the use of data assimilation, we study the quality of the Infrared Atmospheric Sounding Interferometer (IASI) total ozone column measurements. The IASI data are provided by the inversion of IASI radiances performed at the Laboratoire ATmosphères, Milieux, Observations Spatiales (LATMOS). This data set is initially compared on a five-month period to a three-dimensional time varying ozone field that we take as a reference. This reference field results from the combined assimilation of ozone profiles from the Microwave Limb Sounder (MLS) instrument and of total ozone columns from the SCanning Imaging Absorption spectroMeter for Atmospheric CHartographY (SCIAMACHY) instrument. It has low systematic and random errors when compared to ozonesondes and Ozone Monitoring Instrument (OMI) data. The comparison shows that on average, the LATMOS-IASI data tends to overestimate the total ozone columns by 2% to 8%. The random observation error of the LATMOS-IASI data is estimated to about 7%, except over polar regions and deserts where it is higher. The daytime data have generally lower biases but higher random error than the nighttime data. Using this information, the LATMOS-IASI data are then assimilated, combined with the MLS data. This first LATMOS-IASI data assimilation experiment shows that the resulting analysis is quite similar to the one obtained from the combined MLS and SCIAMACHY data assimilation. The differences are mainly due to the lack of SCIAMACHY measurements during polar night, and to the higher LATMOS-IASI random errors especially over the southern polar region. |
author2 |
Centre Européen de Recherche et de Formation Avancée en Calcul Scientifique (CERFACS) CERFACS TROPO - LATMOS Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS) 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)-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 |
Massart, Sébastien Clerbaux, Cathy Cariolle, Daniel Piacentini, Andrea Turquety, Solène Hadji-Lazaro, Juliette |
author_facet |
Massart, Sébastien Clerbaux, Cathy Cariolle, Daniel Piacentini, Andrea Turquety, Solène Hadji-Lazaro, Juliette |
author_sort |
Massart, Sébastien |
title |
First steps towards the assimilation of IASI ozone data into the MOCAGE-PALM system |
title_short |
First steps towards the assimilation of IASI ozone data into the MOCAGE-PALM system |
title_full |
First steps towards the assimilation of IASI ozone data into the MOCAGE-PALM system |
title_fullStr |
First steps towards the assimilation of IASI ozone data into the MOCAGE-PALM system |
title_full_unstemmed |
First steps towards the assimilation of IASI ozone data into the MOCAGE-PALM system |
title_sort |
first steps towards the assimilation of iasi ozone data into the mocage-palm system |
publisher |
HAL CCSD |
publishDate |
2009 |
url |
https://hal.archives-ouvertes.fr/hal-00408161 https://hal.archives-ouvertes.fr/hal-00408161/document https://hal.archives-ouvertes.fr/hal-00408161/file/acp-9-5073-2009.pdf |
genre |
polar night |
genre_facet |
polar night |
op_source |
ISSN: 1680-7316 EISSN: 1680-7324 Atmospheric Chemistry and Physics https://hal.archives-ouvertes.fr/hal-00408161 Atmospheric Chemistry and Physics, European Geosciences Union, 2009, 9 (14), pp.5073-5091 |
op_relation |
hal-00408161 https://hal.archives-ouvertes.fr/hal-00408161 https://hal.archives-ouvertes.fr/hal-00408161/document https://hal.archives-ouvertes.fr/hal-00408161/file/acp-9-5073-2009.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1766172078242791424 |