Statistics on clouds and their relation to thermodynamic conditions at Ny-Ålesund
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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ftunivreading:oai:centaur.reading.ac.uk:84050 2024-06-23T07:45:16+00:00 Statistics on clouds and their relation to thermodynamic conditions at Ny-Ålesund Nomokonova, Tatiana Ebell, Kerstin Lӧhnert, Ulrich Ritter, Christopher O'Connor, Ewan 2019-04-02 text https://centaur.reading.ac.uk/84050/ https://centaur.reading.ac.uk/84050/1/acp-19-4105-2019.pdf en eng Copernicus Publications https://centaur.reading.ac.uk/84050/1/acp-19-4105-2019.pdf Nomokonova, T., Ebell, K., Lӧhnert, U., Ritter, C. and O'Connor, E. <https://centaur.reading.ac.uk/view/creators/90000855.html> (2019) Statistics on clouds and their relation to thermodynamic conditions at Ny-Ålesund. Atmospheric Chemistry and Physics, 19. pp. 4105-4126. ISSN 1680-7316 doi: https://doi.org/10.5194/acp-19-4105-2019 <https://doi.org/10.5194/acp-19-4105-2019> cc_by_4 Article PeerReviewed 2019 ftunivreading https://doi.org/10.5194/acp-19-4105-2019 2024-06-11T15:09:12Z 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 CentAUR: Central Archive at the University of Reading 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 |
CentAUR: Central Archive at the University of Reading |
op_collection_id |
ftunivreading |
language |
English |
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 |
Nomokonova, Tatiana Ebell, Kerstin Lӧhnert, Ulrich Ritter, Christopher O'Connor, Ewan |
spellingShingle |
Nomokonova, Tatiana Ebell, Kerstin Lӧhnert, Ulrich Ritter, Christopher O'Connor, Ewan Statistics on clouds and their relation to thermodynamic conditions at Ny-Ålesund |
author_facet |
Nomokonova, Tatiana Ebell, Kerstin Lӧhnert, Ulrich Ritter, Christopher O'Connor, Ewan |
author_sort |
Nomokonova, Tatiana |
title |
Statistics on clouds and their relation to thermodynamic conditions at Ny-Ålesund |
title_short |
Statistics on clouds and their relation to thermodynamic conditions at Ny-Ålesund |
title_full |
Statistics on clouds and their relation to thermodynamic conditions at Ny-Ålesund |
title_fullStr |
Statistics on clouds and their relation to thermodynamic conditions at Ny-Ålesund |
title_full_unstemmed |
Statistics on clouds and their relation to thermodynamic conditions at Ny-Ålesund |
title_sort |
statistics on clouds and their relation to thermodynamic conditions at ny-ålesund |
publisher |
Copernicus Publications |
publishDate |
2019 |
url |
https://centaur.reading.ac.uk/84050/ https://centaur.reading.ac.uk/84050/1/acp-19-4105-2019.pdf |
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_relation |
https://centaur.reading.ac.uk/84050/1/acp-19-4105-2019.pdf Nomokonova, T., Ebell, K., Lӧhnert, U., Ritter, C. and O'Connor, E. <https://centaur.reading.ac.uk/view/creators/90000855.html> (2019) Statistics on clouds and their relation to thermodynamic conditions at Ny-Ålesund. Atmospheric Chemistry and Physics, 19. pp. 4105-4126. ISSN 1680-7316 doi: https://doi.org/10.5194/acp-19-4105-2019 <https://doi.org/10.5194/acp-19-4105-2019> |
op_rights |
cc_by_4 |
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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1802638669917454336 |