Characterization of Polar Stratospheric Clouds with Space-Borne Lidar: CALIPSO and the 2006 Antarctic Season
International audience The role of polar stratospheric clouds in polar ozone loss has been well documented. The CALIPSO satellite mission offers a new opportunity to characterize PSCs on spatial and temporal scales previously impossible. A PSC detection algorithm based on a single wavelength thresho...
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ftccsdartic:oai:HAL:hal-00302855v1 2023-11-12T04:08:07+01:00 Characterization of Polar Stratospheric Clouds with Space-Borne Lidar: CALIPSO and the 2006 Antarctic Season Pitts, M. C. Thomason, L. W. Poole, L. R. Winker, D. M. NASA Headquarters Science Systems and Applications, Inc. Lanham (SSAI) 2007-06-05 https://hal.science/hal-00302855 https://hal.science/hal-00302855/document https://hal.science/hal-00302855/file/acpd-7-7933-2007.pdf en eng HAL CCSD European Geosciences Union hal-00302855 https://hal.science/hal-00302855 https://hal.science/hal-00302855/document https://hal.science/hal-00302855/file/acpd-7-7933-2007.pdf info:eu-repo/semantics/OpenAccess ISSN: 1680-7367 EISSN: 1680-7375 Atmospheric Chemistry and Physics Discussions https://hal.science/hal-00302855 Atmospheric Chemistry and Physics Discussions, 2007, 7 (3), pp.7933-7985 [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/article Journal articles 2007 ftccsdartic 2023-10-21T23:12:02Z International audience The role of polar stratospheric clouds in polar ozone loss has been well documented. The CALIPSO satellite mission offers a new opportunity to characterize PSCs on spatial and temporal scales previously impossible. A PSC detection algorithm based on a single wavelength threshold approach has been developed for CALIPSO. The method appears to accurately detect PSCs of all opacities, including tenuous clouds, with a very low rate of false positives and few missed clouds. We applied the algorithm to CALIOP data acquired during the 2006 Antarctic winter season from 13 June through 31 October. The spatial and temporal distribution of CALIPSO PSC observations is illustrated with weekly maps of PSC occurrence. The evolution of the 2006 PSC season is depicted by time series of daily PSC frequency as a function of altitude. Comparisons with "virtual" solar occultation data indicate that CALIPSO provides a different view of the PSC season than attained with previous solar occultation satellites. Measurement-based time series of PSC areal coverage and vertically-integrated PSC volume are computed from the CALIOP data. The observed area covered with PSCs is significantly smaller than would be inferred from the commonly used temperature-based proxy T NAT but is similar in magnitude to that inferred from T STS . The potential of CALIOP measurements for investigating PSC composition is illustrated using combinations of lidar backscatter and volume depolarization for two CALIPSO PSC scenes. Article in Journal/Newspaper Antarc* Antarctic Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) 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 Pitts, M. C. Thomason, L. W. Poole, L. R. Winker, D. M. Characterization of Polar Stratospheric Clouds with Space-Borne Lidar: CALIPSO and the 2006 Antarctic Season |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
description |
International audience The role of polar stratospheric clouds in polar ozone loss has been well documented. The CALIPSO satellite mission offers a new opportunity to characterize PSCs on spatial and temporal scales previously impossible. A PSC detection algorithm based on a single wavelength threshold approach has been developed for CALIPSO. The method appears to accurately detect PSCs of all opacities, including tenuous clouds, with a very low rate of false positives and few missed clouds. We applied the algorithm to CALIOP data acquired during the 2006 Antarctic winter season from 13 June through 31 October. The spatial and temporal distribution of CALIPSO PSC observations is illustrated with weekly maps of PSC occurrence. The evolution of the 2006 PSC season is depicted by time series of daily PSC frequency as a function of altitude. Comparisons with "virtual" solar occultation data indicate that CALIPSO provides a different view of the PSC season than attained with previous solar occultation satellites. Measurement-based time series of PSC areal coverage and vertically-integrated PSC volume are computed from the CALIOP data. The observed area covered with PSCs is significantly smaller than would be inferred from the commonly used temperature-based proxy T NAT but is similar in magnitude to that inferred from T STS . The potential of CALIOP measurements for investigating PSC composition is illustrated using combinations of lidar backscatter and volume depolarization for two CALIPSO PSC scenes. |
author2 |
NASA Headquarters Science Systems and Applications, Inc. Lanham (SSAI) |
format |
Article in Journal/Newspaper |
author |
Pitts, M. C. Thomason, L. W. Poole, L. R. Winker, D. M. |
author_facet |
Pitts, M. C. Thomason, L. W. Poole, L. R. Winker, D. M. |
author_sort |
Pitts, M. C. |
title |
Characterization of Polar Stratospheric Clouds with Space-Borne Lidar: CALIPSO and the 2006 Antarctic Season |
title_short |
Characterization of Polar Stratospheric Clouds with Space-Borne Lidar: CALIPSO and the 2006 Antarctic Season |
title_full |
Characterization of Polar Stratospheric Clouds with Space-Borne Lidar: CALIPSO and the 2006 Antarctic Season |
title_fullStr |
Characterization of Polar Stratospheric Clouds with Space-Borne Lidar: CALIPSO and the 2006 Antarctic Season |
title_full_unstemmed |
Characterization of Polar Stratospheric Clouds with Space-Borne Lidar: CALIPSO and the 2006 Antarctic Season |
title_sort |
characterization of polar stratospheric clouds with space-borne lidar: calipso and the 2006 antarctic season |
publisher |
HAL CCSD |
publishDate |
2007 |
url |
https://hal.science/hal-00302855 https://hal.science/hal-00302855/document https://hal.science/hal-00302855/file/acpd-7-7933-2007.pdf |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
ISSN: 1680-7367 EISSN: 1680-7375 Atmospheric Chemistry and Physics Discussions https://hal.science/hal-00302855 Atmospheric Chemistry and Physics Discussions, 2007, 7 (3), pp.7933-7985 |
op_relation |
hal-00302855 https://hal.science/hal-00302855 https://hal.science/hal-00302855/document https://hal.science/hal-00302855/file/acpd-7-7933-2007.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1782328511634079744 |