Mesospheric anomalous diffusion during noctilucent cloud scenarios
The Andenes specular meteor radar shows meteor trail diffusion rates increasing on average by about 10% at times and locations where a lidar observes noctilucent clouds (NLCs). This high-latitude effect has been attributed to the presence of charged NLC after exploring possible contributions from th...
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fttibhannoverren:oai:oa.tib.eu:123456789/5995 2024-09-15T17:39:23+00:00 Mesospheric anomalous diffusion during noctilucent cloud scenarios Laskar, F.I. Stober, G. Fiedler, J. Oppenheim, M.M. Chau, J.L. Pallamraju, D. Pedatella, N.M. Tsutsumi, M. Renkwitz, T. 2019 application/pdf https://oa.tib.eu/renate/handle/123456789/5995 https://doi.org/10.34657/4624 eng eng Göttingen : Copernicus GmbH ISSN:1680-7316 DOI:https://doi.org/10.5194/acp-19-5259-2019 https://doi.org/10.34657/4624 https://oa.tib.eu/renate/handle/123456789/5995 CC BY 4.0 Unported https://creativecommons.org/licenses/by/4.0/ frei zugänglich ddc:550 air temperature diffusion electron density latitude lidar mesosphere meteor polar mesospheric cloud status-type:publishedVersion doc-type:Article doc-type:Text 2019 fttibhannoverren https://doi.org/10.34657/462410.5194/acp-19-5259-2019 2024-06-26T23:32:42Z The Andenes specular meteor radar shows meteor trail diffusion rates increasing on average by about 10% at times and locations where a lidar observes noctilucent clouds (NLCs). This high-latitude effect has been attributed to the presence of charged NLC after exploring possible contributions from thermal tides. To make this claim, the current study evaluates data from three stations at high, middle, and low latitudes for the years 2012 to 2016 to show that NLC influence on the meteor trail diffusion is independent of thermal tides. The observations also show that the meteor trail diffusion enhancement during NLC cover exists only at high latitudes and near the peaks of NLC layers. This paper discusses a number of possible explanations for changes in the regions with NLCs and leans towards the hypothesis that the relative abundance of background electron density plays the leading role. A more accurate model of the meteor trail diffusion around NLC particles would help researchers determine mesospheric temperature and neutral density profiles from meteor radars at high latitudes. © 2019 Author(s). Article in Journal/Newspaper Andenes Renate - Repositorium für Naturwissenschaften und Technik (TIB Hannover) |
institution |
Open Polar |
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Renate - Repositorium für Naturwissenschaften und Technik (TIB Hannover) |
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fttibhannoverren |
language |
English |
topic |
ddc:550 air temperature diffusion electron density latitude lidar mesosphere meteor polar mesospheric cloud |
spellingShingle |
ddc:550 air temperature diffusion electron density latitude lidar mesosphere meteor polar mesospheric cloud Laskar, F.I. Stober, G. Fiedler, J. Oppenheim, M.M. Chau, J.L. Pallamraju, D. Pedatella, N.M. Tsutsumi, M. Renkwitz, T. Mesospheric anomalous diffusion during noctilucent cloud scenarios |
topic_facet |
ddc:550 air temperature diffusion electron density latitude lidar mesosphere meteor polar mesospheric cloud |
description |
The Andenes specular meteor radar shows meteor trail diffusion rates increasing on average by about 10% at times and locations where a lidar observes noctilucent clouds (NLCs). This high-latitude effect has been attributed to the presence of charged NLC after exploring possible contributions from thermal tides. To make this claim, the current study evaluates data from three stations at high, middle, and low latitudes for the years 2012 to 2016 to show that NLC influence on the meteor trail diffusion is independent of thermal tides. The observations also show that the meteor trail diffusion enhancement during NLC cover exists only at high latitudes and near the peaks of NLC layers. This paper discusses a number of possible explanations for changes in the regions with NLCs and leans towards the hypothesis that the relative abundance of background electron density plays the leading role. A more accurate model of the meteor trail diffusion around NLC particles would help researchers determine mesospheric temperature and neutral density profiles from meteor radars at high latitudes. © 2019 Author(s). |
format |
Article in Journal/Newspaper |
author |
Laskar, F.I. Stober, G. Fiedler, J. Oppenheim, M.M. Chau, J.L. Pallamraju, D. Pedatella, N.M. Tsutsumi, M. Renkwitz, T. |
author_facet |
Laskar, F.I. Stober, G. Fiedler, J. Oppenheim, M.M. Chau, J.L. Pallamraju, D. Pedatella, N.M. Tsutsumi, M. Renkwitz, T. |
author_sort |
Laskar, F.I. |
title |
Mesospheric anomalous diffusion during noctilucent cloud scenarios |
title_short |
Mesospheric anomalous diffusion during noctilucent cloud scenarios |
title_full |
Mesospheric anomalous diffusion during noctilucent cloud scenarios |
title_fullStr |
Mesospheric anomalous diffusion during noctilucent cloud scenarios |
title_full_unstemmed |
Mesospheric anomalous diffusion during noctilucent cloud scenarios |
title_sort |
mesospheric anomalous diffusion during noctilucent cloud scenarios |
publisher |
Göttingen : Copernicus GmbH |
publishDate |
2019 |
url |
https://oa.tib.eu/renate/handle/123456789/5995 https://doi.org/10.34657/4624 |
genre |
Andenes |
genre_facet |
Andenes |
op_relation |
ISSN:1680-7316 DOI:https://doi.org/10.5194/acp-19-5259-2019 https://doi.org/10.34657/4624 https://oa.tib.eu/renate/handle/123456789/5995 |
op_rights |
CC BY 4.0 Unported https://creativecommons.org/licenses/by/4.0/ frei zugänglich |
op_doi |
https://doi.org/10.34657/462410.5194/acp-19-5259-2019 |
_version_ |
1810479520223854592 |