Diagnosis Analysis of Thunderstorm Process from June 7 to 8, 2011
In that paper, on the basis of WRF 3.3 model and 0.5o×0.5o NCEP reanalysis data, two thunderstorm processes occurred on June 7, 2011 and June 8, 2011 are simulated, and the pattern field and some physical diagnostic parameters are analyzed as well.It illustrates that, the sudden acceleration of northwest wind at middle and low level of troposphere and the wind field’s cyclonic shear are two important factors to trigger the thunderstorm.The convergence of surface wind field and low level wind field at troposphere provide advantageous conditions for convective action of thunderstorm.High convective available potential energy(CAPE) supplies sufficient energy for the development of thunderstorm.In the above case study, the CAPE and TT index could be used as the energy factor for the analysis and forecast of thunderstorm processes in Beijing area.The field of vorticity at 700hPa corresponds well with the time and position of thunderstorm occurrence, and it can be used as the dynamic factor for analysis and forecast.
thunderstorm lightning index analysis forecasting
Zheng Kou Kun Xu Yueqi Han
National Key Laboratory on Electromagnetic Environmental Effects and Electro-optical Engineering,PLA Institute of MeteorologyPLA University of Science and Technology,Nanjing 211101,China
国际会议
成都
英文
1-4
2011-11-01（万方平台首次上网日期，不代表论文的发表时间）