Stratospheric Circulation of the Northern Hemisphere Winter during 1989-90

Toshihiko Hirooka, Kazuhiko Hayashi, Shinichi Yamada

研究成果: ジャーナルへの寄稿記事

5 引用 (Scopus)

抄録

The stratospheric circulation in winter 1989/90 is investigated with the aid of the transformed Eulerian mean (TEM) equations. The winter 1989/90 is characterized by a very cold mid-winter and a pronounced minor warming following it. The sudden warming was caused by the planetary wave of zonal wavenumber 1 vertically propagating from the troposphere. The temperature increase itself was fairly large but the westerly polar night jet did not reverse to the easterly at the lower stratosphere. This is consistent with the hypothesis shown by LABITZKE and VAN LOON (1988)t hat major mid-winter warmings are hard to occur in the easterly phase of the quasi-biennial oscillation (QBO) during weak solar activity.

元の言語英語
ページ(範囲)1097-1106
ページ数10
ジャーナルJournal of geomagnetism and geoelectricity
44
発行部数11
DOI
出版物ステータス出版済み - 1 1 1992

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Northern Hemisphere
winter
warming
heating
quasi-biennial oscillation
planetary wave
stratosphere
troposphere
solar activity
planetary waves
westerly
night
temperature

All Science Journal Classification (ASJC) codes

  • Environmental Science(all)
  • Earth and Planetary Sciences(all)

これを引用

Stratospheric Circulation of the Northern Hemisphere Winter during 1989-90. / Hirooka, Toshihiko; Hayashi, Kazuhiko; Yamada, Shinichi.

:: Journal of geomagnetism and geoelectricity, 巻 44, 番号 11, 01.01.1992, p. 1097-1106.

研究成果: ジャーナルへの寄稿記事

Hirooka, Toshihiko ; Hayashi, Kazuhiko ; Yamada, Shinichi. / Stratospheric Circulation of the Northern Hemisphere Winter during 1989-90. :: Journal of geomagnetism and geoelectricity. 1992 ; 巻 44, 番号 11. pp. 1097-1106.
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