Meridional gradients of the neutral temperature in the dayside summer E-region
A special measurement using the European Incoherent Scatter (EISCAT) UHF radar was conducted on July 01, 1998 to observe the dayside summer £-region meridional temperature gradient. The purpose of this study is to examine whether the temperature gradient obtained from the direct temperature measurem...
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Kyoto University of Art and Design
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ftnipr:oai:nipr.repo.nii.ac.jp:00006309 2023-05-15T16:04:31+02:00 Meridional gradients of the neutral temperature in the dayside summer E-region Sawako Maeda Satonori Nozawa 2000-08 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=6309 http://id.nii.ac.jp/1291/00006309/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=6309&item_no=1&attribute_id=18&file_no=1 en eng Kyoto University of Art and Design Solar-Terrestrial Environment Laboratory, Nagoya University National Institute of Polar Research https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=6309 http://id.nii.ac.jp/1291/00006309/ AA11397422 Advances in polar upper atmosphere research, 14, 128-137(2000-08) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=6309&item_no=1&attribute_id=18&file_no=1 Departmental Bulletin Paper P(論文) 2000 ftnipr 2023-03-18T20:23:29Z A special measurement using the European Incoherent Scatter (EISCAT) UHF radar was conducted on July 01, 1998 to observe the dayside summer £-region meridional temperature gradient. The purpose of this study is to examine whether the temperature gradient obtained from the direct temperature measurement is consistent with the temperature gradient deduced from the neutral velocity measured by the EISCAT Common Program 2 (CP-2) (S. Maeda et at., J. Geophys. Res., 104, 19871, 1999). It is suggested that the meridional temperature gradient lay in the range between - 0.2 K/km and 0.2 K/km from 99 to 108 km heights in spite of rather large errors of about 0.1 K/km arising from various causes. The magnitude was about 4 times greater than that deduced from the CP-2 data. A lack of consistency between them was attributed to the fact that the former one represented rather instantaneous data, but the latter was hourly averaged. The measured neutral velocity is also presented. Report EISCAT Advances in polar upper atmosphere research National Institute of Polar Research Repository, Japan |
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Open Polar |
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National Institute of Polar Research Repository, Japan |
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ftnipr |
language |
English |
description |
A special measurement using the European Incoherent Scatter (EISCAT) UHF radar was conducted on July 01, 1998 to observe the dayside summer £-region meridional temperature gradient. The purpose of this study is to examine whether the temperature gradient obtained from the direct temperature measurement is consistent with the temperature gradient deduced from the neutral velocity measured by the EISCAT Common Program 2 (CP-2) (S. Maeda et at., J. Geophys. Res., 104, 19871, 1999). It is suggested that the meridional temperature gradient lay in the range between - 0.2 K/km and 0.2 K/km from 99 to 108 km heights in spite of rather large errors of about 0.1 K/km arising from various causes. The magnitude was about 4 times greater than that deduced from the CP-2 data. A lack of consistency between them was attributed to the fact that the former one represented rather instantaneous data, but the latter was hourly averaged. The measured neutral velocity is also presented. |
format |
Report |
author |
Sawako Maeda Satonori Nozawa |
spellingShingle |
Sawako Maeda Satonori Nozawa Meridional gradients of the neutral temperature in the dayside summer E-region |
author_facet |
Sawako Maeda Satonori Nozawa |
author_sort |
Sawako Maeda |
title |
Meridional gradients of the neutral temperature in the dayside summer E-region |
title_short |
Meridional gradients of the neutral temperature in the dayside summer E-region |
title_full |
Meridional gradients of the neutral temperature in the dayside summer E-region |
title_fullStr |
Meridional gradients of the neutral temperature in the dayside summer E-region |
title_full_unstemmed |
Meridional gradients of the neutral temperature in the dayside summer E-region |
title_sort |
meridional gradients of the neutral temperature in the dayside summer e-region |
publisher |
Kyoto University of Art and Design |
publishDate |
2000 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=6309 http://id.nii.ac.jp/1291/00006309/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=6309&item_no=1&attribute_id=18&file_no=1 |
genre |
EISCAT Advances in polar upper atmosphere research |
genre_facet |
EISCAT Advances in polar upper atmosphere research |
op_relation |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=6309 http://id.nii.ac.jp/1291/00006309/ AA11397422 Advances in polar upper atmosphere research, 14, 128-137(2000-08) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=6309&item_no=1&attribute_id=18&file_no=1 |
_version_ |
1766400099939778560 |