Statistical analysis of observations of polar stratospheric clouds with a lidar in Kiruna, northern Sweden
In the present paper, we analyze 11 years of lidar measurements to derive general characteristics of Polar Stratospheric Clouds (PSCs) and to examine how mountain lee waves influence PSC properties. Measurements of PSCs were made with a backscatter lidar located in Kiruna, northern Sweden, in the le...
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ftcopernicus:oai:publications.copernicus.org:egusphere107405 2023-05-15T17:04:08+02:00 Statistical analysis of observations of polar stratospheric clouds with a lidar in Kiruna, northern Sweden Voelger, Peter Dalin, Peter 2022-11-07 application/pdf https://doi.org/10.5194/egusphere-2022-1163 https://egusphere.copernicus.org/preprints/2022/egusphere-2022-1163/ eng eng doi:10.5194/egusphere-2022-1163 https://egusphere.copernicus.org/preprints/2022/egusphere-2022-1163/ eISSN: Text 2022 ftcopernicus https://doi.org/10.5194/egusphere-2022-1163 2022-11-14T17:22:43Z In the present paper, we analyze 11 years of lidar measurements to derive general characteristics of Polar Stratospheric Clouds (PSCs) and to examine how mountain lee waves influence PSC properties. Measurements of PSCs were made with a backscatter lidar located in Kiruna, northern Sweden, in the lee of the Scandinavian mountain range. The statistical analysis demonstrates that nearly half of all observed PSCs consisted of nitric acid trihydrate (NAT) particles while ice clouds were only a small fraction, supercooled ternary solution (STS) and a mixture of different components making up the rest. Most PSCs were observed around 22 km altitude. Mountain lee waves provide a distinct influence on PSC chemical composition and cloud height distribution. Ice PSCs were about 5 times as frequent and NAT clouds were about half as frequent under wave conditions. PSCs were on average at 2 km higher altitudes when under the influence of mountain lee waves. Text Kiruna Northern Sweden Copernicus Publications: E-Journals Kiruna |
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Open Polar |
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Copernicus Publications: E-Journals |
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ftcopernicus |
language |
English |
description |
In the present paper, we analyze 11 years of lidar measurements to derive general characteristics of Polar Stratospheric Clouds (PSCs) and to examine how mountain lee waves influence PSC properties. Measurements of PSCs were made with a backscatter lidar located in Kiruna, northern Sweden, in the lee of the Scandinavian mountain range. The statistical analysis demonstrates that nearly half of all observed PSCs consisted of nitric acid trihydrate (NAT) particles while ice clouds were only a small fraction, supercooled ternary solution (STS) and a mixture of different components making up the rest. Most PSCs were observed around 22 km altitude. Mountain lee waves provide a distinct influence on PSC chemical composition and cloud height distribution. Ice PSCs were about 5 times as frequent and NAT clouds were about half as frequent under wave conditions. PSCs were on average at 2 km higher altitudes when under the influence of mountain lee waves. |
format |
Text |
author |
Voelger, Peter Dalin, Peter |
spellingShingle |
Voelger, Peter Dalin, Peter Statistical analysis of observations of polar stratospheric clouds with a lidar in Kiruna, northern Sweden |
author_facet |
Voelger, Peter Dalin, Peter |
author_sort |
Voelger, Peter |
title |
Statistical analysis of observations of polar stratospheric clouds with a lidar in Kiruna, northern Sweden |
title_short |
Statistical analysis of observations of polar stratospheric clouds with a lidar in Kiruna, northern Sweden |
title_full |
Statistical analysis of observations of polar stratospheric clouds with a lidar in Kiruna, northern Sweden |
title_fullStr |
Statistical analysis of observations of polar stratospheric clouds with a lidar in Kiruna, northern Sweden |
title_full_unstemmed |
Statistical analysis of observations of polar stratospheric clouds with a lidar in Kiruna, northern Sweden |
title_sort |
statistical analysis of observations of polar stratospheric clouds with a lidar in kiruna, northern sweden |
publishDate |
2022 |
url |
https://doi.org/10.5194/egusphere-2022-1163 https://egusphere.copernicus.org/preprints/2022/egusphere-2022-1163/ |
geographic |
Kiruna |
geographic_facet |
Kiruna |
genre |
Kiruna Northern Sweden |
genre_facet |
Kiruna Northern Sweden |
op_source |
eISSN: |
op_relation |
doi:10.5194/egusphere-2022-1163 https://egusphere.copernicus.org/preprints/2022/egusphere-2022-1163/ |
op_doi |
https://doi.org/10.5194/egusphere-2022-1163 |
_version_ |
1766058178507702272 |