ON THE NET HEATING OF AURORAL JET CURRENTS IN THE POLAR MESOPAUSE REGION
Assuming that the cooling-to-space of the atmosphere in the mesopause region around 100km altitude is caused by CO_2 15μm band radiation, the efficiency is reduced to one twentieth or less that calculated on the condition of local thermodynamic equilibrium (J. T. HOUGHTON : The Physics of Atmosphere...
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ftnipr:oai:nipr.repo.nii.ac.jp:00003649 2023-05-15T18:02:10+02:00 ON THE NET HEATING OF AURORAL JET CURRENTS IN THE POLAR MESOPAUSE REGION セキハラ キョウ Kyo SEKIHARA 1991-05 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=3649 http://id.nii.ac.jp/1291/00003649/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=3649&item_no=1&attribute_id=18&file_no=1 en eng ABSTRACT Science University of Tokyo National Institute of Polar Research https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=3649 http://id.nii.ac.jp/1291/00003649/ AA10756213 Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology, 4, 119(1991-05) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=3649&item_no=1&attribute_id=18&file_no=1 Departmental Bulletin Paper P(論文) 1991 ftnipr 2022-12-10T19:45:46Z Assuming that the cooling-to-space of the atmosphere in the mesopause region around 100km altitude is caused by CO_2 15μm band radiation, the efficiency is reduced to one twentieth or less that calculated on the condition of local thermodynamic equilibrium (J. T. HOUGHTON : The Physics of Atmospheres, 2nd ed., Cambridge, Cambridge Univ. Press, 57,1986). The amount of joule heating in this region of auroral belt during substorm period is calculated from ground based magnetometer observations (Y. KAMIDE and A. D. RICHMOND : Geophys. Monogr., 28,67,1984). Combining the above mentioned cooling and heating effects one can calculate the amount of net heating. The result shows that 1.3°K warming, which should require one day before cooling, may be attained by only one hour substorm duration. This may have significance in considering the dynamical effect of solar activity in the global atmosphere such as discussed by K. LABITZKE and H. VAN LOON (J. Atmos. Terr. Phys., 50,197,1988). Report Polar meteorology and glaciology Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology National Institute of Polar Research Repository, Japan |
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National Institute of Polar Research Repository, Japan |
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English |
description |
Assuming that the cooling-to-space of the atmosphere in the mesopause region around 100km altitude is caused by CO_2 15μm band radiation, the efficiency is reduced to one twentieth or less that calculated on the condition of local thermodynamic equilibrium (J. T. HOUGHTON : The Physics of Atmospheres, 2nd ed., Cambridge, Cambridge Univ. Press, 57,1986). The amount of joule heating in this region of auroral belt during substorm period is calculated from ground based magnetometer observations (Y. KAMIDE and A. D. RICHMOND : Geophys. Monogr., 28,67,1984). Combining the above mentioned cooling and heating effects one can calculate the amount of net heating. The result shows that 1.3°K warming, which should require one day before cooling, may be attained by only one hour substorm duration. This may have significance in considering the dynamical effect of solar activity in the global atmosphere such as discussed by K. LABITZKE and H. VAN LOON (J. Atmos. Terr. Phys., 50,197,1988). |
format |
Report |
author |
セキハラ キョウ Kyo SEKIHARA |
spellingShingle |
セキハラ キョウ Kyo SEKIHARA ON THE NET HEATING OF AURORAL JET CURRENTS IN THE POLAR MESOPAUSE REGION |
author_facet |
セキハラ キョウ Kyo SEKIHARA |
author_sort |
セキハラ キョウ |
title |
ON THE NET HEATING OF AURORAL JET CURRENTS IN THE POLAR MESOPAUSE REGION |
title_short |
ON THE NET HEATING OF AURORAL JET CURRENTS IN THE POLAR MESOPAUSE REGION |
title_full |
ON THE NET HEATING OF AURORAL JET CURRENTS IN THE POLAR MESOPAUSE REGION |
title_fullStr |
ON THE NET HEATING OF AURORAL JET CURRENTS IN THE POLAR MESOPAUSE REGION |
title_full_unstemmed |
ON THE NET HEATING OF AURORAL JET CURRENTS IN THE POLAR MESOPAUSE REGION |
title_sort |
on the net heating of auroral jet currents in the polar mesopause region |
publisher |
ABSTRACT |
publishDate |
1991 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=3649 http://id.nii.ac.jp/1291/00003649/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=3649&item_no=1&attribute_id=18&file_no=1 |
genre |
Polar meteorology and glaciology Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology |
genre_facet |
Polar meteorology and glaciology Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology |
op_relation |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=3649 http://id.nii.ac.jp/1291/00003649/ AA10756213 Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology, 4, 119(1991-05) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=3649&item_no=1&attribute_id=18&file_no=1 |
_version_ |
1766171940574199808 |