摘要
根据冰晶增长理论和播云条件,完善了以往人工增雨作业指标,提出在有利的天气形势下进行人工增雨作业时,确定水平作业范围的指标为:冷层中冰面饱和区、水汽积分量≥9 mm的区域和水汽垂直输送区的重合区。确定作业高度的指标为:在垂直剖面图上冰面饱和区、水汽垂直输送区和准饱和区的重合区。作业时间应选在水平、垂直指标出现和消失的时间段内。利用MM5中尺度模式的输出结果,以3 h为时间间隔,在0^-30℃层之间间隔5℃输出计算的各种作业指标预报图和综合图,形成业务化网页。应用作业指标于2007年3月3日在山东省聊城市莘县组织实施了一次火箭人工增雨作业,并对以上指标进行了验证。
According to ice crystal growth theory and cloud seeding conditions, the previous operating indicators of precipitation enhancement are improved. In favorable weather situation we put forward the following operating indicators. Operation is carried out in the area with ice-saturated and accumulated water vapor layer thicker than 9 mm and overlapped by vertical water vapor transport. The operating height belongs to ice saturation, vertical water vapor transport and quasi-saturation combined together. Operating time should be selected in a period of time for the emergence and disappearance of horizontal and vertical indicators. MM5 mesoscale model output for 3-hour time interval and output in the 0 - 30 ℃ layer spacing of 5 ℃ have been used for business web to form charts for prediction and synthesis of indicators. Based on above-mentioned operating indicators we organized precipitation enhancement operations by rockets on March 3, 2007 in Shenxian Liaocheng. The indicators are verified
出处
《气象科学》
CSCD
北大核心
2009年第2期260-265,共6页
Journal of the Meteorological Sciences
基金
2005年省科技厅项目(2005GG3208054)"山东省三级人工影响天气作业指挥系统研究"
山东省气象局科研项目(2004sdqxz24)和(2004sdqxz34)
关键词
人工增雨
作业效果
作业指标
Artificial precipitation enhancement Operation effect Operating indicator
