Simulation of mixed-phase clouds with the ICON-LEM in the complex Arctic environment around Ny-Ålesund
Low-level mixed phase clouds have a substantial impact on the redistribution of radiative energy in the Arctic and are a potential driving factor for Arctic Amplification. To better understand the complex processes around mixed-phase clouds, a combination of long-term measurements and high-resolutio...
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ftcopernicus:oai:publications.copernicus.org:acpd77697 2023-05-15T14:51:06+02:00 Simulation of mixed-phase clouds with the ICON-LEM in the complex Arctic environment around Ny-Ålesund Schemann, Vera Ebell, Kerstin 2019-06-27 application/pdf https://doi.org/10.5194/acp-2019-599 https://www.atmos-chem-phys-discuss.net/acp-2019-599/ eng eng doi:10.5194/acp-2019-599 https://www.atmos-chem-phys-discuss.net/acp-2019-599/ eISSN: 1680-7324 Text 2019 ftcopernicus https://doi.org/10.5194/acp-2019-599 2019-12-24T09:49:00Z Low-level mixed phase clouds have a substantial impact on the redistribution of radiative energy in the Arctic and are a potential driving factor for Arctic Amplification. To better understand the complex processes around mixed-phase clouds, a combination of long-term measurements and high-resolution modeling - which is able to resolve the relevant processes - is essential. In this study, we show the general feasibility of the new high-resolution model ICON-LEM to capture the general structure, type and timing of mixed-phase clouds at the Arctic site Ny-Ålesund and its potential and limitations for further detailed research. As a basic evaluation the model is confronted with data streams of single instruments including microwave radiometer and cloud radar, but also with value added products like the Cloudnet classification. The analysis is based on a 11-day long time period with selected periods being studied in more detail focusing on the representation of particular cloud processes, such as mixed-phase microphysics. In addition, targeted statistical evaluations against observational data sets are performed to assess i) how well the vertical structure of the clouds is represented and ii) how much information is added by higher resolutions. The results clearly demonstrate the advantage of high resolutions: in particular, with the highest model resolution of 75 m, the variability of liquid water path can be well captured. By comparing neighboring grid cells for different subdomains we also show the potential of the model to provide information on the representativity of single sites (as Ny-Ålesund) for a larger domain. Text Arctic Ny Ålesund Ny-Ålesund Copernicus Publications: E-Journals Arctic Ny-Ålesund |
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Copernicus Publications: E-Journals |
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language |
English |
description |
Low-level mixed phase clouds have a substantial impact on the redistribution of radiative energy in the Arctic and are a potential driving factor for Arctic Amplification. To better understand the complex processes around mixed-phase clouds, a combination of long-term measurements and high-resolution modeling - which is able to resolve the relevant processes - is essential. In this study, we show the general feasibility of the new high-resolution model ICON-LEM to capture the general structure, type and timing of mixed-phase clouds at the Arctic site Ny-Ålesund and its potential and limitations for further detailed research. As a basic evaluation the model is confronted with data streams of single instruments including microwave radiometer and cloud radar, but also with value added products like the Cloudnet classification. The analysis is based on a 11-day long time period with selected periods being studied in more detail focusing on the representation of particular cloud processes, such as mixed-phase microphysics. In addition, targeted statistical evaluations against observational data sets are performed to assess i) how well the vertical structure of the clouds is represented and ii) how much information is added by higher resolutions. The results clearly demonstrate the advantage of high resolutions: in particular, with the highest model resolution of 75 m, the variability of liquid water path can be well captured. By comparing neighboring grid cells for different subdomains we also show the potential of the model to provide information on the representativity of single sites (as Ny-Ålesund) for a larger domain. |
format |
Text |
author |
Schemann, Vera Ebell, Kerstin |
spellingShingle |
Schemann, Vera Ebell, Kerstin Simulation of mixed-phase clouds with the ICON-LEM in the complex Arctic environment around Ny-Ålesund |
author_facet |
Schemann, Vera Ebell, Kerstin |
author_sort |
Schemann, Vera |
title |
Simulation of mixed-phase clouds with the ICON-LEM in the complex Arctic environment around Ny-Ålesund |
title_short |
Simulation of mixed-phase clouds with the ICON-LEM in the complex Arctic environment around Ny-Ålesund |
title_full |
Simulation of mixed-phase clouds with the ICON-LEM in the complex Arctic environment around Ny-Ålesund |
title_fullStr |
Simulation of mixed-phase clouds with the ICON-LEM in the complex Arctic environment around Ny-Ålesund |
title_full_unstemmed |
Simulation of mixed-phase clouds with the ICON-LEM in the complex Arctic environment around Ny-Ålesund |
title_sort |
simulation of mixed-phase clouds with the icon-lem in the complex arctic environment around ny-ålesund |
publishDate |
2019 |
url |
https://doi.org/10.5194/acp-2019-599 https://www.atmos-chem-phys-discuss.net/acp-2019-599/ |
geographic |
Arctic Ny-Ålesund |
geographic_facet |
Arctic Ny-Ålesund |
genre |
Arctic Ny Ålesund Ny-Ålesund |
genre_facet |
Arctic Ny Ålesund Ny-Ålesund |
op_source |
eISSN: 1680-7324 |
op_relation |
doi:10.5194/acp-2019-599 https://www.atmos-chem-phys-discuss.net/acp-2019-599/ |
op_doi |
https://doi.org/10.5194/acp-2019-599 |
_version_ |
1766322168330715136 |