Factors responsible for the vertical development of tropical oceanic cumulus convection

Tetsuya Takemi, Osamu Hirayama, Changhai Liu

doi:10.1029/2004gl020225

Factors responsible for the vertical development of tropical oceanic cumulus convection

DOI Web Site Web Site 被引用文献17件オープンアクセス

Tetsuya Takemi

Department of Global Architecture Osaka University Suita Japan
Osamu Hirayama

Department of Global Architecture Osaka University Suita Japan
Changhai Liu

National Center for Atmospheric Research Boulder Colorado USA

書誌事項

公開日: 2004-06

権利情報

http://onlinelibrary.wiley.com/termsAndConditions#vor

DOI

10.1029/2004gl020225

公開者: American Geophysical Union (AGU)

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説明

<jats:p>This study investigates the relationship between the vertical development of tropical cumulus convection and the vertical profiles of environmental temperature and moisture in order to identify the factors responsible for determining the tropical cumulus heights. The analyses of observational data obtained in the tropical western Pacific region reveal a strong correlation between the development of shallow and middle‐topped cumulus clouds and the existence of dry layers in the middle to upper troposphere. In contrast, the difference in static stability profiles is insignificant between different cloud regimes. The observed importance of the tropospheric moisture in modulating cumulus modes is supported by cloud‐resolving numerical simulations. The model results show a strong sensitivity of cumulus heights to the mid‐ to upper‐level relative humidity, while the mid‐level stable layer has less impact.</jats:p>