Development of a polar stratospheric cloud model within the Community Earth System Model: Assessment of 2010 Antarctic winter
To simulate polar stratospheric clouds (PSCs) during the Antarctic winter of 2010, we have developed a PSC model within the Community Earth System Model framework that includes detailed microphysics of sulfuric aerosols and three types of PSCs: supercooled ternary solution (STS), nitric acid trihydr...
Published in: | Journal of Geophysical Research: Atmospheres |
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Language: | English |
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Online Access: | https://doi.org/10.1002/2017JD027003 |
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ftncar:oai:drupal-site.org:articles_21131 2023-09-05T13:13:21+02:00 Development of a polar stratospheric cloud model within the Community Earth System Model: Assessment of 2010 Antarctic winter Zhu, Yunqian (author) Toon, Owen B. (author) Lambert, Alyn (author) Kinnison, Douglas E. (author) Bardeen, Charles (author) Pitts, Michael C. (author) 2017-10-12 https://doi.org/10.1002/2017JD027003 en eng Journal of Geophysical Research: Atmospheres--J. Geophys. Res. Atmos.--2169897X Cheyenne: SGI ICE XA Cluster--10.5065/D6RX99HX articles:21131 ark:/85065/d70g3npx doi:10.1002/2017JD027003 Copyright 2017 American Geophysical Union. article Text 2017 ftncar https://doi.org/10.1002/2017JD027003 2023-08-14T18:48:26Z To simulate polar stratospheric clouds (PSCs) during the Antarctic winter of 2010, we have developed a PSC model within the Community Earth System Model framework that includes detailed microphysics of sulfuric aerosols and three types of PSCs: supercooled ternary solution (STS), nitric acid trihydrate (NAT), and ice. Our model includes two major NAT formation mechanisms, both of which are essential to reproduce the PSC and gas phase chemical features in the 2010 Antarctic winter. Homogeneous nucleation of NAT from STS produces NAT particles with sizes near 8m, which are important to properly simulate denitrification and the gas phase HNO3 observed by the Microwave Limb Sounder (MLS). Heterogeneous nucleation of NAT on ice particles or ice particles on NAT and subsequent evaporation of the ice produces NAT particles with sizes from submicrometers to a few micrometers. These particles account for the large backscattering ratio from NAT observed by the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations satellite, especially in the midwinter season. Adding temperature fluctuations from gravity waves is important to produce larger number density and higher backscattering ratio from ice and NAT particles. However, our model needs a better representation of waves to improve the backscattering ratio and gas phase HNO3 compared with observations. Our model also includes homogeneous nucleation of ice from STS and heterogeneous nucleation of ice on NAT. The model reproduces the gas phase H2O during the winter within the uncertainty of the MLS observations. Article in Journal/Newspaper Antarc* Antarctic OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Antarctic Midwinter ENVELOPE(139.931,139.931,-66.690,-66.690) The Antarctic Journal of Geophysical Research: Atmospheres 122 19 |
institution |
Open Polar |
collection |
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) |
op_collection_id |
ftncar |
language |
English |
description |
To simulate polar stratospheric clouds (PSCs) during the Antarctic winter of 2010, we have developed a PSC model within the Community Earth System Model framework that includes detailed microphysics of sulfuric aerosols and three types of PSCs: supercooled ternary solution (STS), nitric acid trihydrate (NAT), and ice. Our model includes two major NAT formation mechanisms, both of which are essential to reproduce the PSC and gas phase chemical features in the 2010 Antarctic winter. Homogeneous nucleation of NAT from STS produces NAT particles with sizes near 8m, which are important to properly simulate denitrification and the gas phase HNO3 observed by the Microwave Limb Sounder (MLS). Heterogeneous nucleation of NAT on ice particles or ice particles on NAT and subsequent evaporation of the ice produces NAT particles with sizes from submicrometers to a few micrometers. These particles account for the large backscattering ratio from NAT observed by the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations satellite, especially in the midwinter season. Adding temperature fluctuations from gravity waves is important to produce larger number density and higher backscattering ratio from ice and NAT particles. However, our model needs a better representation of waves to improve the backscattering ratio and gas phase HNO3 compared with observations. Our model also includes homogeneous nucleation of ice from STS and heterogeneous nucleation of ice on NAT. The model reproduces the gas phase H2O during the winter within the uncertainty of the MLS observations. |
author2 |
Zhu, Yunqian (author) Toon, Owen B. (author) Lambert, Alyn (author) Kinnison, Douglas E. (author) Bardeen, Charles (author) Pitts, Michael C. (author) |
format |
Article in Journal/Newspaper |
title |
Development of a polar stratospheric cloud model within the Community Earth System Model: Assessment of 2010 Antarctic winter |
spellingShingle |
Development of a polar stratospheric cloud model within the Community Earth System Model: Assessment of 2010 Antarctic winter |
title_short |
Development of a polar stratospheric cloud model within the Community Earth System Model: Assessment of 2010 Antarctic winter |
title_full |
Development of a polar stratospheric cloud model within the Community Earth System Model: Assessment of 2010 Antarctic winter |
title_fullStr |
Development of a polar stratospheric cloud model within the Community Earth System Model: Assessment of 2010 Antarctic winter |
title_full_unstemmed |
Development of a polar stratospheric cloud model within the Community Earth System Model: Assessment of 2010 Antarctic winter |
title_sort |
development of a polar stratospheric cloud model within the community earth system model: assessment of 2010 antarctic winter |
publishDate |
2017 |
url |
https://doi.org/10.1002/2017JD027003 |
long_lat |
ENVELOPE(139.931,139.931,-66.690,-66.690) |
geographic |
Antarctic Midwinter The Antarctic |
geographic_facet |
Antarctic Midwinter The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
Journal of Geophysical Research: Atmospheres--J. Geophys. Res. Atmos.--2169897X Cheyenne: SGI ICE XA Cluster--10.5065/D6RX99HX articles:21131 ark:/85065/d70g3npx doi:10.1002/2017JD027003 |
op_rights |
Copyright 2017 American Geophysical Union. |
op_doi |
https://doi.org/10.1002/2017JD027003 |
container_title |
Journal of Geophysical Research: Atmospheres |
container_volume |
122 |
container_issue |
19 |
_version_ |
1776204659118047232 |