NUMERICAL STUDY ON WEATHER INFLUENCES OF LOCATION DESIGN OF WIND-PROFILER NETWORK FOR BEIJING AREA

By employing the Beijing areas mesoscale NWP system (a joint project of Beijing Meteorological Bureau and National Meteorological Center,China) developed on the basis of PSU/NCAR MM5V 2,6 cases of numerical comparing experiments with and without forces on initial horizontal wind fields,vertical structure have been carried out to investig atehow to reasonably design the wind-profiler network location for Beijing area.36h simulation results show that wind field vertical structure not only plays important roles on mesoscale weather process development over Beijing,but also can influences temperature field and precipitation to some degree.Furt hermore,in the horizontal range,its effect streng theons enlarges with forecasting time increase.To design Beijing wind-profiler network location as near equilateral triang learound the city zone is more reasonable and economical to short-range mesoscale NWP than that as near rectangle under the present conditions,because with the former wind-profiler net work design almost same numerical results achieved.Simulation output salso indicate that locating wind profilers that can explore hig her levels are necessary.