Simultaneous observations of Polar Mesosphere Summer Echoes at two different latitudes in Antarctica
Simultaneous observations of Polar Mesosphere Summer Echoes (PMSE) at Wasa and Davis in Antarctica have been compared. Data with simultaneous observations were obtained for 16 days between 18 January and 5 February 2007. Wasa is at a higher geographic latitude than Davis, but at lower geomagnetic la...
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2008
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ftdatacite:10.34657/1672 2023-05-15T13:38:20+02:00 Simultaneous observations of Polar Mesosphere Summer Echoes at two different latitudes in Antarctica Nilsson, H. Kirkwood, S. Morris, R.J. Latteck, R. Klekociuk, A.R. Murphy, D.J. Zecha, M. Belova, E. 2008 application/pdf https://dx.doi.org/10.34657/1672 https://oa.tib.eu/renate/handle/123456789/4048 en eng München : European Geopyhsical Union Creative Commons Attribution 3.0 Unported CC BY 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Atmospheric composition and structure Aerosols and particles Middle atmosphere - composition and chemistry Meteorology and atmospheric dynamics Middle atmosphere dynamics 530 CreativeWork article 2008 ftdatacite https://doi.org/10.34657/1672 2022-03-10T12:43:22Z Simultaneous observations of Polar Mesosphere Summer Echoes (PMSE) at Wasa and Davis in Antarctica have been compared. Data with simultaneous observations were obtained for 16 days between 18 January and 5 February 2007. Wasa is at a higher geographic latitude than Davis, but at lower geomagnetic latitude. PMSE strength and occurrence frequency were significantly higher at Wasa. The variation of daily PMSE occurrence over the measurement period was in agreement with temperature and frost-point estimates from the Microwave Limb Sounder on the Aura spacecraft for both Wasa and Davis. The diurnal variation of PMSE strength and occurrence frequency as well as the shape of the altitude profiles of average PMSE strength and occurrence frequency were similar for the two sites. The deepest part of the evening minimum in PMSE occurrence frequency occurred for the same magnetic local time at the two sites rather than for the same local solar time. The study indicates that PMSE strength and occurrence increase between 68.6° and 73° geographic latitude, consistent with observed differences in mesospheric temperatures and water vapor content. The average altitude distribution of PMSE varies relatively little with latitude in the same hemisphere. Article in Journal/Newspaper Antarc* Antarctica DataCite Metadata Store (German National Library of Science and Technology) Wasa ENVELOPE(-13.408,-13.408,-73.043,-73.043) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Atmospheric composition and structure Aerosols and particles Middle atmosphere - composition and chemistry Meteorology and atmospheric dynamics Middle atmosphere dynamics 530 |
spellingShingle |
Atmospheric composition and structure Aerosols and particles Middle atmosphere - composition and chemistry Meteorology and atmospheric dynamics Middle atmosphere dynamics 530 Nilsson, H. Kirkwood, S. Morris, R.J. Latteck, R. Klekociuk, A.R. Murphy, D.J. Zecha, M. Belova, E. Simultaneous observations of Polar Mesosphere Summer Echoes at two different latitudes in Antarctica |
topic_facet |
Atmospheric composition and structure Aerosols and particles Middle atmosphere - composition and chemistry Meteorology and atmospheric dynamics Middle atmosphere dynamics 530 |
description |
Simultaneous observations of Polar Mesosphere Summer Echoes (PMSE) at Wasa and Davis in Antarctica have been compared. Data with simultaneous observations were obtained for 16 days between 18 January and 5 February 2007. Wasa is at a higher geographic latitude than Davis, but at lower geomagnetic latitude. PMSE strength and occurrence frequency were significantly higher at Wasa. The variation of daily PMSE occurrence over the measurement period was in agreement with temperature and frost-point estimates from the Microwave Limb Sounder on the Aura spacecraft for both Wasa and Davis. The diurnal variation of PMSE strength and occurrence frequency as well as the shape of the altitude profiles of average PMSE strength and occurrence frequency were similar for the two sites. The deepest part of the evening minimum in PMSE occurrence frequency occurred for the same magnetic local time at the two sites rather than for the same local solar time. The study indicates that PMSE strength and occurrence increase between 68.6° and 73° geographic latitude, consistent with observed differences in mesospheric temperatures and water vapor content. The average altitude distribution of PMSE varies relatively little with latitude in the same hemisphere. |
format |
Article in Journal/Newspaper |
author |
Nilsson, H. Kirkwood, S. Morris, R.J. Latteck, R. Klekociuk, A.R. Murphy, D.J. Zecha, M. Belova, E. |
author_facet |
Nilsson, H. Kirkwood, S. Morris, R.J. Latteck, R. Klekociuk, A.R. Murphy, D.J. Zecha, M. Belova, E. |
author_sort |
Nilsson, H. |
title |
Simultaneous observations of Polar Mesosphere Summer Echoes at two different latitudes in Antarctica |
title_short |
Simultaneous observations of Polar Mesosphere Summer Echoes at two different latitudes in Antarctica |
title_full |
Simultaneous observations of Polar Mesosphere Summer Echoes at two different latitudes in Antarctica |
title_fullStr |
Simultaneous observations of Polar Mesosphere Summer Echoes at two different latitudes in Antarctica |
title_full_unstemmed |
Simultaneous observations of Polar Mesosphere Summer Echoes at two different latitudes in Antarctica |
title_sort |
simultaneous observations of polar mesosphere summer echoes at two different latitudes in antarctica |
publisher |
München : European Geopyhsical Union |
publishDate |
2008 |
url |
https://dx.doi.org/10.34657/1672 https://oa.tib.eu/renate/handle/123456789/4048 |
long_lat |
ENVELOPE(-13.408,-13.408,-73.043,-73.043) |
geographic |
Wasa |
geographic_facet |
Wasa |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_rights |
Creative Commons Attribution 3.0 Unported CC BY 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.34657/1672 |
_version_ |
1766104278305341440 |