Abstract:
Based on Lijiangs Doppler radar (CINRAD/CC) data from its entered service in 2006,and choosing 59 times severe convective weather data during these years.Radar products characteristics of short-time storm and hail was analyzed emphatically.The preliminary results show that:① Severe convective weather in Lijiang triggered by environment wind field.② Distribution characteristics and shear types of strong echo in Radar velocity field and its relationship with severe convective weather.③ Warning critical value and characteristic of radar reflectivity factor in Shape,numerical,height fields and vertically integrated liquid water when severe convective weather in developmental and vigorous stage.④ The time interval characteristics of echo development when the disaster weather from the primary stage to vigorous stage.Through these analyses,it enriches the detection method when short-time storm and hail happened in Lijiang and gets the part of the research index of Doppler radar.Otherwises,there is a certain directive function about the severe convective weather forecasting and early warning in northwest Yunnan.