Modelling mixed-phase clouds with the large-eddy model UCLALES–SALSA
The large-eddy model UCLALES–SALSA, with an exceptionally detailed aerosol description for both aerosol number and chemical composition, has been extended for ice and mixed-phase clouds. Comparison to a previous mixed-phase cloud model intercomparison study confirmed the accuracy of newly implemente...
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ftdoajarticles:oai:doaj.org/article:de40a3e1ee9b449cbbd9dc0a46411439 2023-05-15T15:01:38+02:00 Modelling mixed-phase clouds with the large-eddy model UCLALES–SALSA J. Ahola H. Korhonen J. Tonttila S. Romakkaniemi H. Kokkola T. Raatikainen 2020-10-01T00:00:00Z https://doi.org/10.5194/acp-20-11639-2020 https://doaj.org/article/de40a3e1ee9b449cbbd9dc0a46411439 EN eng Copernicus Publications https://acp.copernicus.org/articles/20/11639/2020/acp-20-11639-2020.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-20-11639-2020 1680-7316 1680-7324 https://doaj.org/article/de40a3e1ee9b449cbbd9dc0a46411439 Atmospheric Chemistry and Physics, Vol 20, Pp 11639-11654 (2020) Physics QC1-999 Chemistry QD1-999 article 2020 ftdoajarticles https://doi.org/10.5194/acp-20-11639-2020 2022-12-31T03:47:28Z The large-eddy model UCLALES–SALSA, with an exceptionally detailed aerosol description for both aerosol number and chemical composition, has been extended for ice and mixed-phase clouds. Comparison to a previous mixed-phase cloud model intercomparison study confirmed the accuracy of newly implemented ice microphysics. A further simulation with a heterogeneous ice nucleation scheme, in which ice-nucleating particles (INPs) are also a prognostic variable, captured the typical layered structure of Arctic mid-altitude mixed-phase cloud: a liquid layer near cloud top and ice within and below the liquid layer. In addition, the simulation showed a realistic freezing rate of droplets within the vertical cloud structure. The represented detailed sectional ice microphysics with prognostic aerosols is crucially important in reproducing mixed-phase clouds. Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Atmospheric Chemistry and Physics 20 19 11639 11654 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Physics QC1-999 Chemistry QD1-999 |
spellingShingle |
Physics QC1-999 Chemistry QD1-999 J. Ahola H. Korhonen J. Tonttila S. Romakkaniemi H. Kokkola T. Raatikainen Modelling mixed-phase clouds with the large-eddy model UCLALES–SALSA |
topic_facet |
Physics QC1-999 Chemistry QD1-999 |
description |
The large-eddy model UCLALES–SALSA, with an exceptionally detailed aerosol description for both aerosol number and chemical composition, has been extended for ice and mixed-phase clouds. Comparison to a previous mixed-phase cloud model intercomparison study confirmed the accuracy of newly implemented ice microphysics. A further simulation with a heterogeneous ice nucleation scheme, in which ice-nucleating particles (INPs) are also a prognostic variable, captured the typical layered structure of Arctic mid-altitude mixed-phase cloud: a liquid layer near cloud top and ice within and below the liquid layer. In addition, the simulation showed a realistic freezing rate of droplets within the vertical cloud structure. The represented detailed sectional ice microphysics with prognostic aerosols is crucially important in reproducing mixed-phase clouds. |
format |
Article in Journal/Newspaper |
author |
J. Ahola H. Korhonen J. Tonttila S. Romakkaniemi H. Kokkola T. Raatikainen |
author_facet |
J. Ahola H. Korhonen J. Tonttila S. Romakkaniemi H. Kokkola T. Raatikainen |
author_sort |
J. Ahola |
title |
Modelling mixed-phase clouds with the large-eddy model UCLALES–SALSA |
title_short |
Modelling mixed-phase clouds with the large-eddy model UCLALES–SALSA |
title_full |
Modelling mixed-phase clouds with the large-eddy model UCLALES–SALSA |
title_fullStr |
Modelling mixed-phase clouds with the large-eddy model UCLALES–SALSA |
title_full_unstemmed |
Modelling mixed-phase clouds with the large-eddy model UCLALES–SALSA |
title_sort |
modelling mixed-phase clouds with the large-eddy model uclales–salsa |
publisher |
Copernicus Publications |
publishDate |
2020 |
url |
https://doi.org/10.5194/acp-20-11639-2020 https://doaj.org/article/de40a3e1ee9b449cbbd9dc0a46411439 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Atmospheric Chemistry and Physics, Vol 20, Pp 11639-11654 (2020) |
op_relation |
https://acp.copernicus.org/articles/20/11639/2020/acp-20-11639-2020.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-20-11639-2020 1680-7316 1680-7324 https://doaj.org/article/de40a3e1ee9b449cbbd9dc0a46411439 |
op_doi |
https://doi.org/10.5194/acp-20-11639-2020 |
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Atmospheric Chemistry and Physics |
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20 |
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19 |
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11639 |
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11654 |
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1766333640630861824 |