Abstract:
In this paper, water content and features of cloud droplet spectra in warm clouds over early summer in the Xinfeng Jiang River valley are analysed. It is pointed out that the warm cumulus has more moisture than warm stratocumulus, which includes more water in early summer in Guangdong than precipitive As-Ns clouds in North China. Coalescence becomes the main rain trigger for the observed clouds, more easily such in cumulus congestus than in stratocumulus. Cumulus is more of marine type in Guangdong than in Hunan or other provinces.