This paper analyzed the continuous detecting data ofLanzhou CINRAD /CC Radar abouta hailprocess occurred in Dingxi on July 18, 2008, summarized themain characteristics of the radarproducts during this hailprocess such as reflectivity, radial velocity,RCS vertical section, vertical integrated liquid content and so on. Then it discussed the detection methods for monitoring hail by DopplerRadar, found out the typical echo characteristic of supercell storms such as hook echo, bounded weak echo region(BWER),echowal,l suspended echo, obvious influx nick, existingmesocyclone etc., and summed up some informationwhich are good fornowcasting ofhai,l such as severe change ofVIL, corresponding relationship ofET and hailprocess, obvious three-body scatter characteristic and so on, these information will be of great value for us to detect severeweather events by radar.

Firstly,the working p rincip le and measurement p recision of the Airda - 3000Q type atmospheric wind p rofiler (AWP) were introduced. Then, a contradistinctive analysis on the wind p rofile data acquired by both AWP and synchronous balloon sounding was conducted to estimate the reliability ofAWP for detectingwind field. The results show that under the stable weather condition, the p rofiler’s detection ofwind direction and wind speed had some deviation compared by the balloon’s detection from the ground to 200 m height due to the detecting blind spots of the AWP and the ground clutter, but above 200 m, both wind field p rofiles correlated well;Under the comp lex weather condition, theirwind p rofiles had obvious deviation because the wind information on the different height acquired by AWP is a temporal average of wind field in a time period, but the wind data measured by sounding balloon on a specific height is the instantaneous value while balloon passed by.