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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Online Access: | http://www.osti.gov/servlets/purl/1755635 https://www.osti.gov/biblio/1755635 https://doi.org/10.5194/acp-20-11639-2020 |
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ftosti:oai:osti.gov:1755635 2023-07-30T04:01:38+02:00 Modelling mixed-phase clouds with the large-eddy model UCLALES–SALSA Ahola, Jaakko Korhonen, Hannele Tonttila, Juha Romakkaniemi, Sami Kokkola, Harri Raatikainen, Tomi 2023-07-03 application/pdf http://www.osti.gov/servlets/purl/1755635 https://www.osti.gov/biblio/1755635 https://doi.org/10.5194/acp-20-11639-2020 unknown http://www.osti.gov/servlets/purl/1755635 https://www.osti.gov/biblio/1755635 https://doi.org/10.5194/acp-20-11639-2020 doi:10.5194/acp-20-11639-2020 54 ENVIRONMENTAL SCIENCES 2023 ftosti https://doi.org/10.5194/acp-20-11639-2020 2023-07-11T10:00:03Z 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. Other/Unknown Material Arctic SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) Arctic Atmospheric Chemistry and Physics 20 19 11639 11654 |
institution |
Open Polar |
collection |
SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) |
op_collection_id |
ftosti |
language |
unknown |
topic |
54 ENVIRONMENTAL SCIENCES |
spellingShingle |
54 ENVIRONMENTAL SCIENCES Ahola, Jaakko Korhonen, Hannele Tonttila, Juha Romakkaniemi, Sami Kokkola, Harri Raatikainen, Tomi Modelling mixed-phase clouds with the large-eddy model UCLALES–SALSA |
topic_facet |
54 ENVIRONMENTAL SCIENCES |
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. |
author |
Ahola, Jaakko Korhonen, Hannele Tonttila, Juha Romakkaniemi, Sami Kokkola, Harri Raatikainen, Tomi |
author_facet |
Ahola, Jaakko Korhonen, Hannele Tonttila, Juha Romakkaniemi, Sami Kokkola, Harri Raatikainen, Tomi |
author_sort |
Ahola, Jaakko |
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 |
publishDate |
2023 |
url |
http://www.osti.gov/servlets/purl/1755635 https://www.osti.gov/biblio/1755635 https://doi.org/10.5194/acp-20-11639-2020 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
http://www.osti.gov/servlets/purl/1755635 https://www.osti.gov/biblio/1755635 https://doi.org/10.5194/acp-20-11639-2020 doi:10.5194/acp-20-11639-2020 |
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 |
op_container_end_page |
11654 |
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1772812406686220288 |