DOMINANT PHYSICAL PROCESSES ASSOCIATED WITH PHASE DIFFERENCES BETWEEN SURFACE RAINFALL AND CONVECTIVE AVAILABLE POTENTIA
A lag correlation analysis is conducted with a 21-day TOGA COARE cloud-resolving model simulation data to identify the phase relation between surface rainfall and convective available potential energy (CAPE) and associated physical processes. The analysis shows that the maximum negative lag correlations between the model domain mean CAPE and rainfall occurs around lag hour 6. The minimum mean CAPE lags mean and convective rainfall through the vapor condensation and depositions, water vapor convergence, and heat divergence whereas it lags stratiform rainfall via the transport of hydrometeor concentration from convective regions to raining stratiform regions, vapor condensation and depositions, water vapor storage, and heat divergence over raining stratiform regions.
作 者： Xiaofan LI 作者单位： NOAA/NESDIS/Center for Satellite Applications and Research Camp Springs,Maryland,USA 刊 名： 热带气象学报（英文版） 英文刊名： JOURNAL OF TROPICAL METEOROLOGY 年，卷(期)： 2009 15(2) 分类号： P426.61 关键词： phase relation convective available potential energy surface rainfall cloud-resolving model simulation