Retrieval and characterization of ozone vertical profiles from a thermal infrared nadir sounder
International audience This paper presents the first retrievals and validations of ozone vertical distributions from a set of high-resolution nadir thermal infrared measurements. These were obtained by the Interferometric Monitor for Greenhouse gases (IMG) instrument, which has operated on board the...
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ftinsu:oai:HAL:hal-00081052v1 2023-06-18T03:39:36+02:00 Retrieval and characterization of ozone vertical profiles from a thermal infrared nadir sounder Coheur, Pierre-François Barret, Brice Turquety, Solène Hurtmans, Daniel Hadji-Lazaro, Juliette Clerbaux, Cathy Spectroscopie de l'atmosphère, Service de Chimie Quantique et Photophysique Université libre de Bruxelles (ULB) 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) Fonds National de la Recherche Scientifique (FNRS, Belgium);The Belgian State Federal Office for Scientific; Technical and Cultural Affairs; The European Space Agency (contract EV-1103C and ESA-Prodex arrangement C90-115) 2005 https://hal.science/hal-00081052 https://hal.science/hal-00081052/document https://hal.science/hal-00081052/file/Coheur_et_al-2005-Journal_of_Geophysical_Research__Solid_Earth_%281978-2012%29.pdf https://doi.org/10.1029/2005JD005845 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2005JD005845 hal-00081052 https://hal.science/hal-00081052 https://hal.science/hal-00081052/document https://hal.science/hal-00081052/file/Coheur_et_al-2005-Journal_of_Geophysical_Research__Solid_Earth_%281978-2012%29.pdf doi:10.1029/2005JD005845 info:eu-repo/semantics/OpenAccess ISSN: 2169-897X EISSN: 2169-8996 Journal of Geophysical Research: Atmospheres https://hal.science/hal-00081052 Journal of Geophysical Research: Atmospheres, 2005, 110, pp.D24303. ⟨10.1029/2005JD005845⟩ [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] info:eu-repo/semantics/article Journal articles 2005 ftinsu https://doi.org/10.1029/2005JD005845 2023-06-06T01:10:38Z International audience This paper presents the first retrievals and validations of ozone vertical distributions from a set of high-resolution nadir thermal infrared measurements. These were obtained by the Interferometric Monitor for Greenhouse gases (IMG) instrument, which has operated on board the Japanese ADEOS platform between 1996 and 1997. The Optimal Estimation Method is used for the retrievals, along with a priori profile and covariance matrix built from model climatologies. We compare the retrieved IMG profiles with high-vertical-resolution ozone sonde measurements. Therefore we selected a set of IMG spectra collocated to within 3° of longitude and latitude with a representative distribution of ground-based stations. We demonstrate that thanks to the two to four independent pieces of vertical information contained in the spectroscopic measurements with a maximum sensitivity in the upper troposphere–middle stratosphere, the thermal infrared nadir sounders are able to capture most of the ozone spatial and temporal variations. In particular, the latitudinal variations of the stratospheric ozone maximum are well represented in the retrievals, as are the high ozone concentrations observed in the upper troposphere–lower stratosphere at northern midlatitudes during springtime. Ozone depletion events in the Arctic vortex are also well reproduced. The measurements provide an accurate view of the tropospheric ozone content, except when the latter is very low. A detailed error budget reveals that the major part of the error in the IMG retrieved ozone profile is due to the smoothing of the true profile by the averaging kernel matrix, with additional contributions associated with the measurement noise and the inaccurate knowledge of the temperature profile and of the Instrument Line Shape (ILS). Article in Journal/Newspaper Arctic Institut national des sciences de l'Univers: HAL-INSU Arctic Journal of Geophysical Research 110 D24 |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
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] Coheur, Pierre-François Barret, Brice Turquety, Solène Hurtmans, Daniel Hadji-Lazaro, Juliette Clerbaux, Cathy Retrieval and characterization of ozone vertical profiles from a thermal infrared nadir sounder |
topic_facet |
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] |
description |
International audience This paper presents the first retrievals and validations of ozone vertical distributions from a set of high-resolution nadir thermal infrared measurements. These were obtained by the Interferometric Monitor for Greenhouse gases (IMG) instrument, which has operated on board the Japanese ADEOS platform between 1996 and 1997. The Optimal Estimation Method is used for the retrievals, along with a priori profile and covariance matrix built from model climatologies. We compare the retrieved IMG profiles with high-vertical-resolution ozone sonde measurements. Therefore we selected a set of IMG spectra collocated to within 3° of longitude and latitude with a representative distribution of ground-based stations. We demonstrate that thanks to the two to four independent pieces of vertical information contained in the spectroscopic measurements with a maximum sensitivity in the upper troposphere–middle stratosphere, the thermal infrared nadir sounders are able to capture most of the ozone spatial and temporal variations. In particular, the latitudinal variations of the stratospheric ozone maximum are well represented in the retrievals, as are the high ozone concentrations observed in the upper troposphere–lower stratosphere at northern midlatitudes during springtime. Ozone depletion events in the Arctic vortex are also well reproduced. The measurements provide an accurate view of the tropospheric ozone content, except when the latter is very low. A detailed error budget reveals that the major part of the error in the IMG retrieved ozone profile is due to the smoothing of the true profile by the averaging kernel matrix, with additional contributions associated with the measurement noise and the inaccurate knowledge of the temperature profile and of the Instrument Line Shape (ILS). |
author2 |
Spectroscopie de l'atmosphère, Service de Chimie Quantique et Photophysique Université libre de Bruxelles (ULB) 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) Fonds National de la Recherche Scientifique (FNRS, Belgium);The Belgian State Federal Office for Scientific; Technical and Cultural Affairs; The European Space Agency (contract EV-1103C and ESA-Prodex arrangement C90-115) |
format |
Article in Journal/Newspaper |
author |
Coheur, Pierre-François Barret, Brice Turquety, Solène Hurtmans, Daniel Hadji-Lazaro, Juliette Clerbaux, Cathy |
author_facet |
Coheur, Pierre-François Barret, Brice Turquety, Solène Hurtmans, Daniel Hadji-Lazaro, Juliette Clerbaux, Cathy |
author_sort |
Coheur, Pierre-François |
title |
Retrieval and characterization of ozone vertical profiles from a thermal infrared nadir sounder |
title_short |
Retrieval and characterization of ozone vertical profiles from a thermal infrared nadir sounder |
title_full |
Retrieval and characterization of ozone vertical profiles from a thermal infrared nadir sounder |
title_fullStr |
Retrieval and characterization of ozone vertical profiles from a thermal infrared nadir sounder |
title_full_unstemmed |
Retrieval and characterization of ozone vertical profiles from a thermal infrared nadir sounder |
title_sort |
retrieval and characterization of ozone vertical profiles from a thermal infrared nadir sounder |
publisher |
HAL CCSD |
publishDate |
2005 |
url |
https://hal.science/hal-00081052 https://hal.science/hal-00081052/document https://hal.science/hal-00081052/file/Coheur_et_al-2005-Journal_of_Geophysical_Research__Solid_Earth_%281978-2012%29.pdf https://doi.org/10.1029/2005JD005845 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
ISSN: 2169-897X EISSN: 2169-8996 Journal of Geophysical Research: Atmospheres https://hal.science/hal-00081052 Journal of Geophysical Research: Atmospheres, 2005, 110, pp.D24303. ⟨10.1029/2005JD005845⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2005JD005845 hal-00081052 https://hal.science/hal-00081052 https://hal.science/hal-00081052/document https://hal.science/hal-00081052/file/Coheur_et_al-2005-Journal_of_Geophysical_Research__Solid_Earth_%281978-2012%29.pdf doi:10.1029/2005JD005845 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2005JD005845 |
container_title |
Journal of Geophysical Research |
container_volume |
110 |
container_issue |
D24 |
_version_ |
1769004327428423680 |