Statistics on clouds and their relation to thermodynamic conditions at Ny-Ålesund using ground-based sensor synergy
The French–German Arctic research base AWIPEV (the Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research – AWI – and the French Polar Institute Paul Emile Victor – PEV) at Ny-Ålesund, Svalbard, is a unique station for monitoring cloud-related processes in the Arctic. For the first...
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ftdoajarticles:oai:doaj.org/article:1ca41025d51044eeae0542459a3254d5 2023-05-15T13:15:43+02:00 Statistics on clouds and their relation to thermodynamic conditions at Ny-Ålesund using ground-based sensor synergy T. Nomokonova K. Ebell U. Löhnert M. Maturilli C. Ritter E. O'Connor 2019-04-01T00:00:00Z https://doi.org/10.5194/acp-19-4105-2019 https://doaj.org/article/1ca41025d51044eeae0542459a3254d5 EN eng Copernicus Publications https://www.atmos-chem-phys.net/19/4105/2019/acp-19-4105-2019.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-19-4105-2019 1680-7316 1680-7324 https://doaj.org/article/1ca41025d51044eeae0542459a3254d5 Atmospheric Chemistry and Physics, Vol 19, Pp 4105-4126 (2019) Physics QC1-999 Chemistry QD1-999 article 2019 ftdoajarticles https://doi.org/10.5194/acp-19-4105-2019 2022-12-31T11:16:57Z The French–German Arctic research base AWIPEV (the Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research – AWI – and the French Polar Institute Paul Emile Victor – PEV) at Ny-Ålesund, Svalbard, is a unique station for monitoring cloud-related processes in the Arctic. For the first time, data from a set of ground-based instruments at the AWIPEV observatory are analyzed to characterize the vertical structure of clouds. For this study, a 14-month dataset from Cloudnet combining observations from a ceilometer, a 94 GHz cloud radar, and a microwave radiometer is used. A total cloud occurrence of ∼81 %, with 44.8 % multilayer and 36 % single-layer clouds, was found. Among single-layer clouds the occurrence of liquid, ice, and mixed-phase clouds was 6.4 %, 9 %, and 20.6 %, respectively. It was found that more than 90 % of single-layer liquid and mixed-phase clouds have liquid water path (LWP) values lower than 100 and 200 g m −2 , respectively. Mean values of ice water path (IWP) for ice and mixed-phase clouds were found to be 273 and 164 g m −2 , respectively. The different types of single-layer clouds are also related to in-cloud temperature and the relative humidity under which they occur. Statistics based on observations are compared to ICOsahedral Non-hydrostatic (ICON) model output. Distinct differences in liquid-phase occurrence in observations and the model at different environmental temperatures lead to higher occurrence of pure ice clouds. A lower occurrence of mixed-phase clouds in the model at temperatures between −20 and −5 ∘ C becomes evident. The analyzed dataset is useful for satellite validation and model evaluation. Article in Journal/Newspaper Alfred Wegener Institute Arctic Ny Ålesund Ny-Ålesund Svalbard Directory of Open Access Journals: DOAJ Articles Arctic Svalbard Ny-Ålesund Paul-Emile Victor ENVELOPE(136.500,136.500,-66.333,-66.333) Atmospheric Chemistry and Physics 19 6 4105 4126 |
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 T. Nomokonova K. Ebell U. Löhnert M. Maturilli C. Ritter E. O'Connor Statistics on clouds and their relation to thermodynamic conditions at Ny-Ålesund using ground-based sensor synergy |
topic_facet |
Physics QC1-999 Chemistry QD1-999 |
description |
The French–German Arctic research base AWIPEV (the Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research – AWI – and the French Polar Institute Paul Emile Victor – PEV) at Ny-Ålesund, Svalbard, is a unique station for monitoring cloud-related processes in the Arctic. For the first time, data from a set of ground-based instruments at the AWIPEV observatory are analyzed to characterize the vertical structure of clouds. For this study, a 14-month dataset from Cloudnet combining observations from a ceilometer, a 94 GHz cloud radar, and a microwave radiometer is used. A total cloud occurrence of ∼81 %, with 44.8 % multilayer and 36 % single-layer clouds, was found. Among single-layer clouds the occurrence of liquid, ice, and mixed-phase clouds was 6.4 %, 9 %, and 20.6 %, respectively. It was found that more than 90 % of single-layer liquid and mixed-phase clouds have liquid water path (LWP) values lower than 100 and 200 g m −2 , respectively. Mean values of ice water path (IWP) for ice and mixed-phase clouds were found to be 273 and 164 g m −2 , respectively. The different types of single-layer clouds are also related to in-cloud temperature and the relative humidity under which they occur. Statistics based on observations are compared to ICOsahedral Non-hydrostatic (ICON) model output. Distinct differences in liquid-phase occurrence in observations and the model at different environmental temperatures lead to higher occurrence of pure ice clouds. A lower occurrence of mixed-phase clouds in the model at temperatures between −20 and −5 ∘ C becomes evident. The analyzed dataset is useful for satellite validation and model evaluation. |
format |
Article in Journal/Newspaper |
author |
T. Nomokonova K. Ebell U. Löhnert M. Maturilli C. Ritter E. O'Connor |
author_facet |
T. Nomokonova K. Ebell U. Löhnert M. Maturilli C. Ritter E. O'Connor |
author_sort |
T. Nomokonova |
title |
Statistics on clouds and their relation to thermodynamic conditions at Ny-Ålesund using ground-based sensor synergy |
title_short |
Statistics on clouds and their relation to thermodynamic conditions at Ny-Ålesund using ground-based sensor synergy |
title_full |
Statistics on clouds and their relation to thermodynamic conditions at Ny-Ålesund using ground-based sensor synergy |
title_fullStr |
Statistics on clouds and their relation to thermodynamic conditions at Ny-Ålesund using ground-based sensor synergy |
title_full_unstemmed |
Statistics on clouds and their relation to thermodynamic conditions at Ny-Ålesund using ground-based sensor synergy |
title_sort |
statistics on clouds and their relation to thermodynamic conditions at ny-ålesund using ground-based sensor synergy |
publisher |
Copernicus Publications |
publishDate |
2019 |
url |
https://doi.org/10.5194/acp-19-4105-2019 https://doaj.org/article/1ca41025d51044eeae0542459a3254d5 |
long_lat |
ENVELOPE(136.500,136.500,-66.333,-66.333) |
geographic |
Arctic Svalbard Ny-Ålesund Paul-Emile Victor |
geographic_facet |
Arctic Svalbard Ny-Ålesund Paul-Emile Victor |
genre |
Alfred Wegener Institute Arctic Ny Ålesund Ny-Ålesund Svalbard |
genre_facet |
Alfred Wegener Institute Arctic Ny Ålesund Ny-Ålesund Svalbard |
op_source |
Atmospheric Chemistry and Physics, Vol 19, Pp 4105-4126 (2019) |
op_relation |
https://www.atmos-chem-phys.net/19/4105/2019/acp-19-4105-2019.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-19-4105-2019 1680-7316 1680-7324 https://doaj.org/article/1ca41025d51044eeae0542459a3254d5 |
op_doi |
https://doi.org/10.5194/acp-19-4105-2019 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
19 |
container_issue |
6 |
container_start_page |
4105 |
op_container_end_page |
4126 |
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1766270725342101504 |