A Statistical Analysis of the Energy Dissipation Rate Estimated From the PMWE Spectral Width in the Antarctic
The radar volume reflectivity and turbulent kinetic energy dissipation rate in the Antarctic mesosphere were estimated from the polar mesosphere winter echoes (PMWE) recorded using a vertical beam of the PANSY radar, a Mesosphere‐Stratosphere‐Troposphere radar at Syowa Station (69°S, 40°E), over a p...
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ftkyotouniv:oai:repository.kulib.kyoto-u.ac.jp:2433/261743 2023-05-15T13:51:56+02:00 A Statistical Analysis of the Energy Dissipation Rate Estimated From the PMWE Spectral Width in the Antarctic Kohma, M. Sato, K. Nishimura, K. Tsutsumi, M. Sato, T. 佐藤, 亨 2020-08-27 application/pdf http://hdl.handle.net/2433/261743 jpn jpn American Geophysical Union (AGU) 10.1029/2020jd032745 2169-897X 2169-8996 http://hdl.handle.net/2433/261743 Journal of Geophysical Research: Atmospheres 125 16 e2020JD032745 16K17801 / 19K14791 © 2020. The Authors. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. CC-BY PMWE turbulence VHF radar gravity wave Journal Article 2020 ftkyotouniv 2021-02-26T00:14:37Z The radar volume reflectivity and turbulent kinetic energy dissipation rate in the Antarctic mesosphere were estimated from the polar mesosphere winter echoes (PMWE) recorded using a vertical beam of the PANSY radar, a Mesosphere‐Stratosphere‐Troposphere radar at Syowa Station (69°S, 40°E), over a period of 4 years. The observed radar volume reflectivity exhibits a lognormal distribution in the range of 2 × 10−18 to 5 × 10−15 m−1 for a height region of 55–82 km. The turbulent energy dissipation rate estimated from the spectral widths of the PMWE ranges from 10−4 to 100 m2 s−3. From monthly histograms of the turbulent energy dissipation rate for a fixed solar zenith angle (SZA) and height, it was found that the summer‐to‐winter transition of the turbulent energy dissipation rate occurs in March, while the winter‐to‐summer transition occurs in September. This seasonal variation agrees well with that of gravity wave activity, suggesting that the turbulence in the mesosphere is likely caused by gravity wave breaking. Article in Journal/Newspaper Antarc* Antarctic Kyoto University Research Information Repository (KURENAI) Antarctic The Antarctic Syowa Station |
institution |
Open Polar |
collection |
Kyoto University Research Information Repository (KURENAI) |
op_collection_id |
ftkyotouniv |
language |
Japanese |
topic |
PMWE turbulence VHF radar gravity wave |
spellingShingle |
PMWE turbulence VHF radar gravity wave Kohma, M. Sato, K. Nishimura, K. Tsutsumi, M. Sato, T. A Statistical Analysis of the Energy Dissipation Rate Estimated From the PMWE Spectral Width in the Antarctic |
topic_facet |
PMWE turbulence VHF radar gravity wave |
description |
The radar volume reflectivity and turbulent kinetic energy dissipation rate in the Antarctic mesosphere were estimated from the polar mesosphere winter echoes (PMWE) recorded using a vertical beam of the PANSY radar, a Mesosphere‐Stratosphere‐Troposphere radar at Syowa Station (69°S, 40°E), over a period of 4 years. The observed radar volume reflectivity exhibits a lognormal distribution in the range of 2 × 10−18 to 5 × 10−15 m−1 for a height region of 55–82 km. The turbulent energy dissipation rate estimated from the spectral widths of the PMWE ranges from 10−4 to 100 m2 s−3. From monthly histograms of the turbulent energy dissipation rate for a fixed solar zenith angle (SZA) and height, it was found that the summer‐to‐winter transition of the turbulent energy dissipation rate occurs in March, while the winter‐to‐summer transition occurs in September. This seasonal variation agrees well with that of gravity wave activity, suggesting that the turbulence in the mesosphere is likely caused by gravity wave breaking. |
author2 |
佐藤, 亨 |
format |
Article in Journal/Newspaper |
author |
Kohma, M. Sato, K. Nishimura, K. Tsutsumi, M. Sato, T. |
author_facet |
Kohma, M. Sato, K. Nishimura, K. Tsutsumi, M. Sato, T. |
author_sort |
Kohma, M. |
title |
A Statistical Analysis of the Energy Dissipation Rate Estimated From the PMWE Spectral Width in the Antarctic |
title_short |
A Statistical Analysis of the Energy Dissipation Rate Estimated From the PMWE Spectral Width in the Antarctic |
title_full |
A Statistical Analysis of the Energy Dissipation Rate Estimated From the PMWE Spectral Width in the Antarctic |
title_fullStr |
A Statistical Analysis of the Energy Dissipation Rate Estimated From the PMWE Spectral Width in the Antarctic |
title_full_unstemmed |
A Statistical Analysis of the Energy Dissipation Rate Estimated From the PMWE Spectral Width in the Antarctic |
title_sort |
statistical analysis of the energy dissipation rate estimated from the pmwe spectral width in the antarctic |
publisher |
American Geophysical Union (AGU) |
publishDate |
2020 |
url |
http://hdl.handle.net/2433/261743 |
geographic |
Antarctic The Antarctic Syowa Station |
geographic_facet |
Antarctic The Antarctic Syowa Station |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
10.1029/2020jd032745 2169-897X 2169-8996 http://hdl.handle.net/2433/261743 Journal of Geophysical Research: Atmospheres 125 16 e2020JD032745 16K17801 / 19K14791 |
op_rights |
© 2020. The Authors. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
op_rightsnorm |
CC-BY |
_version_ |
1766255966490198016 |