Abstract:The wind profiler, developed recently with advanced technology, can be used! to measure upper-air wind automatically and continuously. Its principle, structure and performance are briefly described in this paper. In addition, the results from us PRE-STORM experiment in 1985, ia which the radar was taken in practice,Wind Profiler Demonstration Program (1988-1992) in the United States are introduced simply.

Abstract:The acidity and chemical composition of precipitations, which are measured over Linan Background Air Polution Monitoring Station, Zhejiang Province, and Gubeikou Background Air Polution Monitoring Station, Beijing City, are analysed.

Abstract:The statistics of the air humidity was carried out based on the calculation of the humid parameters. The air and dewpoint temperature records in January and July dating from 1960 to 1969 were collected from seven weather stations, five of which are located in the monsoon, areas. The analysis of the features of statistical quantities, including their geographical distributions, seasonal variations and vertical differences indicates that the basic features are dependent mainly on the characteristics of the monsoon climate.

Abstract:Based on the fundamental theory of aimospheric thermodynamics, the regularity of thermal variations among the upward saturation-adiabatic air parcels has been sought out under various circumstances. The relative equation and its numerical results are born.