Microphysical Properties of Antarctic Polar Stratospheric Clouds and their Dependence on Tropospheric Cloud Systems
©2010 by the American Geophysical Union. Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) and CloudSat satellite measurements are used to investigate the impact of tropospheric high and deep clouds on the microphysical properties of polar stratospheric clouds (PSCs) over A...
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ftcolostateunidc:oai:mountainscholar.org:20.500.11919/734 2023-05-15T13:36:38+02:00 Microphysical Properties of Antarctic Polar Stratospheric Clouds and their Dependence on Tropospheric Cloud Systems Adhikari, Loknath Wang, Zhien Liu, Dong 2010-04-08 application/pdf https://hdl.handle.net/20.500.11919/734 https://doi.org/10.1029/2009JD012125 English eng eng University of Wyoming. Libraries Faculty Publications - Atmospheric Science https://hdl.handle.net/20.500.11919/734 doi:10.1029/2009JD012125 Atmospheric Science Faculty Publications Antarctic ozone hole Antarctica Backscattering coefficients CALIPSO Cloud-aerosol lidar and infrared pathfinder satellite observations CloudSat Color ratios Depolarization ratio Interannual variation Microphysical property Polar stratospheric clouds Satellite measurements Scattering ratio Supercooled ternary solutions Tropospheric clouds Weather systems Backscattering Clouds Ice Optical radar Ozone Troposphere aerosol annual variation cloud cloud microphysics lidar meteorology ozone depletion polar stratospheric cloud satellite imagery stratosphere Engineering Journal contribution 2010 ftcolostateunidc https://doi.org/20.500.11919/734 https://doi.org/10.1029/2009JD012125 2021-07-14T20:00:32Z ©2010 by the American Geophysical Union. Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) and CloudSat satellite measurements are used to investigate the impact of tropospheric high and deep clouds on the microphysical properties of polar stratospheric clouds (PSCs) over Antarctica during the 2006 and 2007 winters. Based on the attenuated lidar scattering ratio and PSC depolarization ratio (δ'), PSCs are classified into supercooled ternary solution (STS), Mix 1, Mix 2, and ice classes with significantly different microphysical properties in terms of the PSC backscattering coefficient (β532) for 532 nm, the color ratio (β1064/β532), and δ'. In the early stages of the PSC season, STS accounts for more than 50% of the total PSCs, but the Mix 1, Mix 2, and ice classes become more common in the late season. During the late PSC season, close to 70% of PSCs are formed in association with high and deep tropospheric cloud systems, indicating the important role of tropospheric weather systems in Antarctic PSC formation. Tropospheric cloud systems also affect the microphysical properties of PSCs by affecting the relative occurrence of different PSC classes, especially during September and October. Our results also show that there are noticeable differences in color ratio and β532 (at the 0.05 significance level) for the ice class and Mix 2 (late season only) for PSCs associated and not associated with high and deep tropospheric cloud systems. These results indicate that the impact of tropospheric meteorology on PSC formation should be fully considered to better understand interannual variations and recovery of the Antarctic ozone hole. Other Non-Article Part of Journal/Newspaper Antarc* Antarctic Antarctica Digital Collections of Colorado (Colorado State University) Antarctic The Antarctic Journal of Geophysical Research 115 |
institution |
Open Polar |
collection |
Digital Collections of Colorado (Colorado State University) |
op_collection_id |
ftcolostateunidc |
language |
English |
topic |
Antarctic ozone hole Antarctica Backscattering coefficients CALIPSO Cloud-aerosol lidar and infrared pathfinder satellite observations CloudSat Color ratios Depolarization ratio Interannual variation Microphysical property Polar stratospheric clouds Satellite measurements Scattering ratio Supercooled ternary solutions Tropospheric clouds Weather systems Backscattering Clouds Ice Optical radar Ozone Troposphere aerosol annual variation cloud cloud microphysics lidar meteorology ozone depletion polar stratospheric cloud satellite imagery stratosphere Engineering |
spellingShingle |
Antarctic ozone hole Antarctica Backscattering coefficients CALIPSO Cloud-aerosol lidar and infrared pathfinder satellite observations CloudSat Color ratios Depolarization ratio Interannual variation Microphysical property Polar stratospheric clouds Satellite measurements Scattering ratio Supercooled ternary solutions Tropospheric clouds Weather systems Backscattering Clouds Ice Optical radar Ozone Troposphere aerosol annual variation cloud cloud microphysics lidar meteorology ozone depletion polar stratospheric cloud satellite imagery stratosphere Engineering Adhikari, Loknath Wang, Zhien Liu, Dong Microphysical Properties of Antarctic Polar Stratospheric Clouds and their Dependence on Tropospheric Cloud Systems |
topic_facet |
Antarctic ozone hole Antarctica Backscattering coefficients CALIPSO Cloud-aerosol lidar and infrared pathfinder satellite observations CloudSat Color ratios Depolarization ratio Interannual variation Microphysical property Polar stratospheric clouds Satellite measurements Scattering ratio Supercooled ternary solutions Tropospheric clouds Weather systems Backscattering Clouds Ice Optical radar Ozone Troposphere aerosol annual variation cloud cloud microphysics lidar meteorology ozone depletion polar stratospheric cloud satellite imagery stratosphere Engineering |
description |
©2010 by the American Geophysical Union. Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) and CloudSat satellite measurements are used to investigate the impact of tropospheric high and deep clouds on the microphysical properties of polar stratospheric clouds (PSCs) over Antarctica during the 2006 and 2007 winters. Based on the attenuated lidar scattering ratio and PSC depolarization ratio (δ'), PSCs are classified into supercooled ternary solution (STS), Mix 1, Mix 2, and ice classes with significantly different microphysical properties in terms of the PSC backscattering coefficient (β532) for 532 nm, the color ratio (β1064/β532), and δ'. In the early stages of the PSC season, STS accounts for more than 50% of the total PSCs, but the Mix 1, Mix 2, and ice classes become more common in the late season. During the late PSC season, close to 70% of PSCs are formed in association with high and deep tropospheric cloud systems, indicating the important role of tropospheric weather systems in Antarctic PSC formation. Tropospheric cloud systems also affect the microphysical properties of PSCs by affecting the relative occurrence of different PSC classes, especially during September and October. Our results also show that there are noticeable differences in color ratio and β532 (at the 0.05 significance level) for the ice class and Mix 2 (late season only) for PSCs associated and not associated with high and deep tropospheric cloud systems. These results indicate that the impact of tropospheric meteorology on PSC formation should be fully considered to better understand interannual variations and recovery of the Antarctic ozone hole. |
format |
Other Non-Article Part of Journal/Newspaper |
author |
Adhikari, Loknath Wang, Zhien Liu, Dong |
author_facet |
Adhikari, Loknath Wang, Zhien Liu, Dong |
author_sort |
Adhikari, Loknath |
title |
Microphysical Properties of Antarctic Polar Stratospheric Clouds and their Dependence on Tropospheric Cloud Systems |
title_short |
Microphysical Properties of Antarctic Polar Stratospheric Clouds and their Dependence on Tropospheric Cloud Systems |
title_full |
Microphysical Properties of Antarctic Polar Stratospheric Clouds and their Dependence on Tropospheric Cloud Systems |
title_fullStr |
Microphysical Properties of Antarctic Polar Stratospheric Clouds and their Dependence on Tropospheric Cloud Systems |
title_full_unstemmed |
Microphysical Properties of Antarctic Polar Stratospheric Clouds and their Dependence on Tropospheric Cloud Systems |
title_sort |
microphysical properties of antarctic polar stratospheric clouds and their dependence on tropospheric cloud systems |
publisher |
University of Wyoming. Libraries |
publishDate |
2010 |
url |
https://hdl.handle.net/20.500.11919/734 https://doi.org/10.1029/2009JD012125 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_source |
Atmospheric Science Faculty Publications |
op_relation |
Faculty Publications - Atmospheric Science https://hdl.handle.net/20.500.11919/734 doi:10.1029/2009JD012125 |
op_doi |
https://doi.org/20.500.11919/734 https://doi.org/10.1029/2009JD012125 |
container_title |
Journal of Geophysical Research |
container_volume |
115 |
_version_ |
1766081927660437504 |