A diagnostic study on heat sources and moisture sinks in the monsoon trough area during active-break phases of the Indian summer monsoon, 1979
A diagnostic study on heat sources and moisture sinks in the monsoon trough area during active-break phases of the Indian summer monsoon, 1979
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DOI：
10.3402/tellusa.v49i4.14683
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发表时间：
1997-08
期刊：
影响因子：
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通讯作者：
U. V. Bhide;V. R. Mujamdar;S. Ghanekar;D. K. Paul;Tsing‐Chang Chen;G. Rao
中科院分区：
文献类型：
--
作者：
U. V. Bhide;V. R. Mujamdar;S. Ghanekar;D. K. Paul;Tsing‐Chang Chen;G. Rao
利用欧洲中期天气预报中心FGGE的IIIb级高空资料，研究了1979年夏季风印度季风槽区的非绝热加热沿着热力结构。槽区的视热源和视水汽汇与印度中部的降水变化一致。垂直积分的表观热源和水汽汇的时空变化是一致的。这些一致性表明积云对流释放的潜热对非绝热加热的贡献很大。在活跃期，季风槽区域上方的空间平均加热和干燥速率的垂直结构显示出较高的值，高达8 K至11 K日DOI：10.1034/j.1600-0870.1997.t01-2-00004.x
The diabatic heating over the Indian monsoon trough area, along with its thermal structure are studied for the 1979 summer monsoon based on FGGE level-IIIb upper air data of the European Centre for Medium Range Weather Forecasts. The apparent heat source and the apparent moisture sink over the trough area varied coherently with the rainfall over central India. The spatial and temporal variations of the vertically integrated apparent heat source and moisture sink were found to be coincident. These coincidences suggested that diabatic heating was largely contributed by the latent heat released by cumulus convection. During the active periods, the vertical structure of spatially-averaged heating and drying rates above the monsoon trough area showed higher values, as much as 8 K to 11 K day DOI: 10.1034/j.1600-0870.1997.t01-2-00004.x