Interannual variability of ozone loss in the Arctic and Antarctic polar vortex using 20 years of NDACC ozone measurements
Since 1990, stratospheric chemical ozone losses in the Arctic have been reported, but the large activity of planetary waves in the northern hemisphere makes the evaluation of photochemical destruction far more difficult than in the southern hemisphere. To overcome the difficulty, several methods for...
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ftccsdartic:oai:HAL:hal-00822025v1 2023-05-15T13:51:54+02:00 Interannual variability of ozone loss in the Arctic and Antarctic polar vortex using 20 years of NDACC ozone measurements Goutail, Florence Pazmino, Andrea Pommereau, Jean-Pierre Kuttippurath, Jayanarayanan Lefèvre, Franck Chipperfield, Martyn Feng, Wuhu STRATO - 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) School of Earth and Environment Leeds (SEE) University of Leeds Reunion Island, France 2011-11-07 https://hal.archives-ouvertes.fr/hal-00822025 en eng HAL CCSD hal-00822025 https://hal.archives-ouvertes.fr/hal-00822025 Symposium celebrating 20 years of atmospheric research fostered by NDACC/NDSC observations https://hal.archives-ouvertes.fr/hal-00822025 Symposium celebrating 20 years of atmospheric research fostered by NDACC/NDSC observations, Nov 2011, Reunion Island, France [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] info:eu-repo/semantics/conferenceObject Poster communications 2011 ftccsdartic 2021-11-21T03:48:18Z Since 1990, stratospheric chemical ozone losses in the Arctic have been reported, but the large activity of planetary waves in the northern hemisphere makes the evaluation of photochemical destruction far more difficult than in the southern hemisphere. To overcome the difficulty, several methods for removing the contribution of transport have been suggested. Among those is the transport model approach. With this method, chemical ozone reduction is derived by comparison between ground based total ozone measurements and 3D model simulations in which ozone is considered as a passive tracer. Using this method, the total ozone reduction in the Arctic vortex was derived each winter since winter 1994 by comparing the SAOZ/NDACC measurements to two 3D CTM, Reprobus and Slimcat. The method allows determining the period of ozone destruction, the daily rate and the amplitude of the cumulative loss. The amplitude of the ozone loss is very sensitive to stratospheric temperature history during the winter and thus highly variable from one winter to another. In general, strongest ozone losses of 25-30 % are occurring during coldest winters while very little 0-10% could be observed during the warmest. There is an exception for the winter 2011 when a record low value of 39% has been measured. This 39% loss is close to the depletion reported in the Antarctic regions using the same method and SAOZ measurements together with other ground-based observations such as Dobson or other UV-visible DOAS/NDACC instruments, where during the last 23 years of available measurements the ozone loss is reaching 50-52%, except in 2002 when it was limited to 40%. Conference Object Antarc* Antarctic Arctic Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Antarctic Arctic 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 |
[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] Goutail, Florence Pazmino, Andrea Pommereau, Jean-Pierre Kuttippurath, Jayanarayanan Lefèvre, Franck Chipperfield, Martyn Feng, Wuhu Interannual variability of ozone loss in the Arctic and Antarctic polar vortex using 20 years of NDACC ozone measurements |
topic_facet |
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] |
description |
Since 1990, stratospheric chemical ozone losses in the Arctic have been reported, but the large activity of planetary waves in the northern hemisphere makes the evaluation of photochemical destruction far more difficult than in the southern hemisphere. To overcome the difficulty, several methods for removing the contribution of transport have been suggested. Among those is the transport model approach. With this method, chemical ozone reduction is derived by comparison between ground based total ozone measurements and 3D model simulations in which ozone is considered as a passive tracer. Using this method, the total ozone reduction in the Arctic vortex was derived each winter since winter 1994 by comparing the SAOZ/NDACC measurements to two 3D CTM, Reprobus and Slimcat. The method allows determining the period of ozone destruction, the daily rate and the amplitude of the cumulative loss. The amplitude of the ozone loss is very sensitive to stratospheric temperature history during the winter and thus highly variable from one winter to another. In general, strongest ozone losses of 25-30 % are occurring during coldest winters while very little 0-10% could be observed during the warmest. There is an exception for the winter 2011 when a record low value of 39% has been measured. This 39% loss is close to the depletion reported in the Antarctic regions using the same method and SAOZ measurements together with other ground-based observations such as Dobson or other UV-visible DOAS/NDACC instruments, where during the last 23 years of available measurements the ozone loss is reaching 50-52%, except in 2002 when it was limited to 40%. |
author2 |
STRATO - 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) School of Earth and Environment Leeds (SEE) University of Leeds |
format |
Conference Object |
author |
Goutail, Florence Pazmino, Andrea Pommereau, Jean-Pierre Kuttippurath, Jayanarayanan Lefèvre, Franck Chipperfield, Martyn Feng, Wuhu |
author_facet |
Goutail, Florence Pazmino, Andrea Pommereau, Jean-Pierre Kuttippurath, Jayanarayanan Lefèvre, Franck Chipperfield, Martyn Feng, Wuhu |
author_sort |
Goutail, Florence |
title |
Interannual variability of ozone loss in the Arctic and Antarctic polar vortex using 20 years of NDACC ozone measurements |
title_short |
Interannual variability of ozone loss in the Arctic and Antarctic polar vortex using 20 years of NDACC ozone measurements |
title_full |
Interannual variability of ozone loss in the Arctic and Antarctic polar vortex using 20 years of NDACC ozone measurements |
title_fullStr |
Interannual variability of ozone loss in the Arctic and Antarctic polar vortex using 20 years of NDACC ozone measurements |
title_full_unstemmed |
Interannual variability of ozone loss in the Arctic and Antarctic polar vortex using 20 years of NDACC ozone measurements |
title_sort |
interannual variability of ozone loss in the arctic and antarctic polar vortex using 20 years of ndacc ozone measurements |
publisher |
HAL CCSD |
publishDate |
2011 |
url |
https://hal.archives-ouvertes.fr/hal-00822025 |
op_coverage |
Reunion Island, France |
geographic |
Antarctic Arctic The Antarctic |
geographic_facet |
Antarctic Arctic The Antarctic |
genre |
Antarc* Antarctic Arctic |
genre_facet |
Antarc* Antarctic Arctic |
op_source |
Symposium celebrating 20 years of atmospheric research fostered by NDACC/NDSC observations https://hal.archives-ouvertes.fr/hal-00822025 Symposium celebrating 20 years of atmospheric research fostered by NDACC/NDSC observations, Nov 2011, Reunion Island, France |
op_relation |
hal-00822025 https://hal.archives-ouvertes.fr/hal-00822025 |
_version_ |
1766255944971321344 |