Abstract: Concern about the apparent increase in the acidity of rainfall from the 1950s to the 1970s prompted reexamination of data from the intermittent, short-term sampling networks that are the basis of the trend estimates. A ...

Abstract: A semiautomatic aerosol sampler, designed to use Millipore filter material, is described. The operating mechanism is an adaptation of an automatic slide-changer assembly. By enclosing the sampler in an aerodynamic housing, ...

Abstract: Assuming that successful precipitation modification could be achieved under atmospheric conditions favorable for the development of natural precipitation, a three-phase study was made to acquire information on the potential ...

Abstract: METROMEX was the first major field program aimed at studying the reality and causes of urban rainfall anomalies suggested in several climatological studies. The results from the 1971?74 METROMEX data portray statistically ...