Dynamical effects of solar heating below the cloud layer in a venus-like atmosphere

Masaru Yamamoto, Masaaki Takahashi

研究成果: ジャーナルへの寄稿学術誌査読

22 被引用数 (Scopus)

抄録

The dynamics of Venus' lower-atmospheric superrotation remain an open issue. In the present study, we investigate the sensitivity of the superrotation to diabatic heating rate below the cloud layer using a simplified GCM. A fully developed superrotation fails to develop in the lower atmosphere under the condition with a fairly low diabatic heating below the cloud layer, as is thought to be realistic. Additional radiative forcing in the lower atmosphere and/or eddy momentum source should be considered to produce lower-atmospheric superrotation. The diabatic heating rate below the cloud layer controls the formation of the multiple superrotation states (slow, fast, and extremely fast superrotations). Small changes in the weak lower-atmospheric heating lead to drastic changes of the middle-and lower-atmospheric superrotation.

本文言語英語
論文番号E12004
ジャーナルJournal of Geophysical Research: Planets
114
12
DOI
出版ステータス出版済み - 12月 2009

!!!All Science Journal Classification (ASJC) codes

  • 地球化学および岩石学
  • 地球物理学
  • 地球惑星科学(その他)
  • 宇宙惑星科学

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