Modelling of cirrus clouds – Part 1b: Structuring cirrus clouds by dynamics
A recently developed and validated bulk microphysics scheme for modelling cirrus clouds (Spichtinger and Gierens, 2009), implemented into the anelastic non-hydrostatic model EULAG is used for investigation of the impact of dynamics on the evolution of an arctic cirrostratus. Sensitivity studies are...
Published in: | Atmospheric Chemistry and Physics |
---|---|
Main Authors: | , |
Format: | Text |
Language: | English |
Published: |
2018
|
Subjects: | |
Online Access: | https://doi.org/10.5194/acp-9-707-2009 https://www.atmos-chem-phys.net/9/707/2009/ |
id |
ftcopernicus:oai:publications.copernicus.org:acp39069 |
---|---|
record_format |
openpolar |
spelling |
ftcopernicus:oai:publications.copernicus.org:acp39069 2023-05-15T15:01:31+02:00 Modelling of cirrus clouds – Part 1b: Structuring cirrus clouds by dynamics Spichtinger, P. Gierens, K. M. 2018-01-15 application/pdf https://doi.org/10.5194/acp-9-707-2009 https://www.atmos-chem-phys.net/9/707/2009/ eng eng doi:10.5194/acp-9-707-2009 https://www.atmos-chem-phys.net/9/707/2009/ eISSN: 1680-7324 Text 2018 ftcopernicus https://doi.org/10.5194/acp-9-707-2009 2019-12-24T09:58:01Z A recently developed and validated bulk microphysics scheme for modelling cirrus clouds (Spichtinger and Gierens, 2009), implemented into the anelastic non-hydrostatic model EULAG is used for investigation of the impact of dynamics on the evolution of an arctic cirrostratus. Sensitivity studies are performed, using variation of large-scale updraughts as well as addition of small-scale temperature fluctuations and wind shear. The results show the importance of sedimentation of ice crystals on cloud evolution. Due to non-linear processes like homogeneous nucleation situations can arise where small changes in the outer parameters have large effects on the resulting cloud structure. In-cloud ice supersaturation is a common feature of all our simulations, and we show that dynamics is as least as important for its appearance than is microphysics. Text Arctic Copernicus Publications: E-Journals Arctic Atmospheric Chemistry and Physics 9 2 707 719 |
institution |
Open Polar |
collection |
Copernicus Publications: E-Journals |
op_collection_id |
ftcopernicus |
language |
English |
description |
A recently developed and validated bulk microphysics scheme for modelling cirrus clouds (Spichtinger and Gierens, 2009), implemented into the anelastic non-hydrostatic model EULAG is used for investigation of the impact of dynamics on the evolution of an arctic cirrostratus. Sensitivity studies are performed, using variation of large-scale updraughts as well as addition of small-scale temperature fluctuations and wind shear. The results show the importance of sedimentation of ice crystals on cloud evolution. Due to non-linear processes like homogeneous nucleation situations can arise where small changes in the outer parameters have large effects on the resulting cloud structure. In-cloud ice supersaturation is a common feature of all our simulations, and we show that dynamics is as least as important for its appearance than is microphysics. |
format |
Text |
author |
Spichtinger, P. Gierens, K. M. |
spellingShingle |
Spichtinger, P. Gierens, K. M. Modelling of cirrus clouds – Part 1b: Structuring cirrus clouds by dynamics |
author_facet |
Spichtinger, P. Gierens, K. M. |
author_sort |
Spichtinger, P. |
title |
Modelling of cirrus clouds – Part 1b: Structuring cirrus clouds by dynamics |
title_short |
Modelling of cirrus clouds – Part 1b: Structuring cirrus clouds by dynamics |
title_full |
Modelling of cirrus clouds – Part 1b: Structuring cirrus clouds by dynamics |
title_fullStr |
Modelling of cirrus clouds – Part 1b: Structuring cirrus clouds by dynamics |
title_full_unstemmed |
Modelling of cirrus clouds – Part 1b: Structuring cirrus clouds by dynamics |
title_sort |
modelling of cirrus clouds – part 1b: structuring cirrus clouds by dynamics |
publishDate |
2018 |
url |
https://doi.org/10.5194/acp-9-707-2009 https://www.atmos-chem-phys.net/9/707/2009/ |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
eISSN: 1680-7324 |
op_relation |
doi:10.5194/acp-9-707-2009 https://www.atmos-chem-phys.net/9/707/2009/ |
op_doi |
https://doi.org/10.5194/acp-9-707-2009 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
9 |
container_issue |
2 |
container_start_page |
707 |
op_container_end_page |
719 |
_version_ |
1766333542215712768 |