Nitric acid in the stratosphere based on Odin observations from 2001 to 2007 ? Part 1: A global climatology
International audience The Sub-Millimetre Radiometer (SMR) on board the Odin satellite, launched in February 2001, observes thermal emissions of stratospheric nitric acid (HNO 3 ) originating from the Earth limb in a band centred at 544.6 GHz. Height-resolved measurements of the global distribution...
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ftccsdartic:oai:HAL:hal-00304186v1 2023-05-15T13:44:36+02:00 Nitric acid in the stratosphere based on Odin observations from 2001 to 2007 ? Part 1: A global climatology Urban, Joanna, Pommier, M. Murtagh, D. P. Santee, M. L. Orsolini, Y. J. Chalmers University of Technology Göteborg Jet Propulsion Laboratory (JPL) California Institute of Technology (CALTECH)-NASA Norwegian Institute for Air Research (NILU) 2008-05-26 https://hal.archives-ouvertes.fr/hal-00304186 https://hal.archives-ouvertes.fr/hal-00304186/document https://hal.archives-ouvertes.fr/hal-00304186/file/acpd-8-9569-2008.pdf en eng HAL CCSD European Geosciences Union hal-00304186 https://hal.archives-ouvertes.fr/hal-00304186 https://hal.archives-ouvertes.fr/hal-00304186/document https://hal.archives-ouvertes.fr/hal-00304186/file/acpd-8-9569-2008.pdf info:eu-repo/semantics/OpenAccess ISSN: 1680-7367 EISSN: 1680-7375 Atmospheric Chemistry and Physics Discussions https://hal.archives-ouvertes.fr/hal-00304186 Atmospheric Chemistry and Physics Discussions, European Geosciences Union, 2008, 8 (3), pp.9569-9590 [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/article Journal articles 2008 ftccsdartic 2021-05-02T00:29:21Z International audience The Sub-Millimetre Radiometer (SMR) on board the Odin satellite, launched in February 2001, observes thermal emissions of stratospheric nitric acid (HNO 3 ) originating from the Earth limb in a band centred at 544.6 GHz. Height-resolved measurements of the global distribution of nitric acid in the stratosphere between ~18?45 km (~1.5?60 hPa) were performed approximately on two observation days per week. An HNO 3 climatology based on roughly 6 years of observations from August 2001 to December 2007 was created. The study highlights the spatial and seasonal variation of nitric acid in the stratosphere, characterised by a pronounced seasonal cycle at middle and high latitudes with maxima during late fall and minima during spring, strong denitrification in the lower stratosphere of the Antarctic polar vortex during winter (the irreversible removal of NO y by the sedimentation of cloud particles containing HNO 3 ), as well as high quantities of HNO 3 formed every winter at high-latitudes in the middle and upper stratosphere. A strong inter-annual variability is observed in particular at high latitudes. A comparison with a stratospheric HNO 3 climatology based on UARS/MLS measurements from the 1990s shows a good consistency and agreement of the main morphological features in the potential temperature range ~465 to ~960 K, if the different characteristics of the data sets such as altitude range and resolution are considered. Article in Journal/Newspaper Antarc* Antarctic Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Antarctic The Antarctic |
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 |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere Urban, Joanna, Pommier, M. Murtagh, D. P. Santee, M. L. Orsolini, Y. J. Nitric acid in the stratosphere based on Odin observations from 2001 to 2007 ? Part 1: A global climatology |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
description |
International audience The Sub-Millimetre Radiometer (SMR) on board the Odin satellite, launched in February 2001, observes thermal emissions of stratospheric nitric acid (HNO 3 ) originating from the Earth limb in a band centred at 544.6 GHz. Height-resolved measurements of the global distribution of nitric acid in the stratosphere between ~18?45 km (~1.5?60 hPa) were performed approximately on two observation days per week. An HNO 3 climatology based on roughly 6 years of observations from August 2001 to December 2007 was created. The study highlights the spatial and seasonal variation of nitric acid in the stratosphere, characterised by a pronounced seasonal cycle at middle and high latitudes with maxima during late fall and minima during spring, strong denitrification in the lower stratosphere of the Antarctic polar vortex during winter (the irreversible removal of NO y by the sedimentation of cloud particles containing HNO 3 ), as well as high quantities of HNO 3 formed every winter at high-latitudes in the middle and upper stratosphere. A strong inter-annual variability is observed in particular at high latitudes. A comparison with a stratospheric HNO 3 climatology based on UARS/MLS measurements from the 1990s shows a good consistency and agreement of the main morphological features in the potential temperature range ~465 to ~960 K, if the different characteristics of the data sets such as altitude range and resolution are considered. |
author2 |
Chalmers University of Technology Göteborg Jet Propulsion Laboratory (JPL) California Institute of Technology (CALTECH)-NASA Norwegian Institute for Air Research (NILU) |
format |
Article in Journal/Newspaper |
author |
Urban, Joanna, Pommier, M. Murtagh, D. P. Santee, M. L. Orsolini, Y. J. |
author_facet |
Urban, Joanna, Pommier, M. Murtagh, D. P. Santee, M. L. Orsolini, Y. J. |
author_sort |
Urban, Joanna, |
title |
Nitric acid in the stratosphere based on Odin observations from 2001 to 2007 ? Part 1: A global climatology |
title_short |
Nitric acid in the stratosphere based on Odin observations from 2001 to 2007 ? Part 1: A global climatology |
title_full |
Nitric acid in the stratosphere based on Odin observations from 2001 to 2007 ? Part 1: A global climatology |
title_fullStr |
Nitric acid in the stratosphere based on Odin observations from 2001 to 2007 ? Part 1: A global climatology |
title_full_unstemmed |
Nitric acid in the stratosphere based on Odin observations from 2001 to 2007 ? Part 1: A global climatology |
title_sort |
nitric acid in the stratosphere based on odin observations from 2001 to 2007 ? part 1: a global climatology |
publisher |
HAL CCSD |
publishDate |
2008 |
url |
https://hal.archives-ouvertes.fr/hal-00304186 https://hal.archives-ouvertes.fr/hal-00304186/document https://hal.archives-ouvertes.fr/hal-00304186/file/acpd-8-9569-2008.pdf |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
ISSN: 1680-7367 EISSN: 1680-7375 Atmospheric Chemistry and Physics Discussions https://hal.archives-ouvertes.fr/hal-00304186 Atmospheric Chemistry and Physics Discussions, European Geosciences Union, 2008, 8 (3), pp.9569-9590 |
op_relation |
hal-00304186 https://hal.archives-ouvertes.fr/hal-00304186 https://hal.archives-ouvertes.fr/hal-00304186/document https://hal.archives-ouvertes.fr/hal-00304186/file/acpd-8-9569-2008.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1766203971856236544 |