There was a major decrease in particulate emissions after the passage of the Clean Air Act of 1970. The reduction in emissions caused a rapid rebound in summer rainfall in the Atlanta region in the late 1970s. There was a decrease in summer rainfall of at least 40 mm at affected locales prior to the passage of act. The rainfall suppression involved a decrease of heavy-rainfall days. a b s t r a...

Convective precipitation associated with tropical depression (TD) is one primary type of post-flooding season rainfall in South China (SC). Observations of the Tropical Rainfall Measuring Mission (TRMM) satellite have shown specific diurnal features of convective rainfall in South China, which is somewhat different from that in other seasons or regions of China. Convective precipitation is usua...