分层垂直累积液态含水量的算法及其在人工影响天气中的应用

The algorithm application of the vertical stratification and accumulation liquid water content in weather modification.

应用VIL产品的生成原理,变换VIL产品的理论表达式为实测体扫回波强度不同仰角之间高度层的计算公式,利用与雷达资料时间对应的当天的探空资料,取得当天0℃层的高度,并以0℃层高度为界,将垂直累积液态含水量分为上下两部分,分别计算每一个底面积的垂直柱体中的垂直累积液态含水量以及分层的垂直累积液态含水量,从而得到整个探测区域的VIL分布.通过雷达组网,得到全省的上层VIL的分布,结合雷达资料分析出的回波的移向和移速,科学的选择飞机增雨的作业区域以及作业的时间,从而得到更好的飞机人工增雨效果.利用分层垂直累计液态含水量及其0℃上下层比值,更好的指挥地面高炮火箭人工增雨和消雹作业.

The VIL distribution was obtained through VLL products generated application principle, calculation formula of VIL, the use of radar data and time corresponding to the day of the sounding data to obtain day 0℃ layer height and height to 0 ℃ for the sector, the cumulative vertical liquid water content to be divided the the into two parts from top to bottom, respectively, in each area of a vertical cylinder at the end of the vertical accumulation of liquid water content, as well as the cumulative vertical stratification of liquid water content. The upper Y2 distribution was obtained through the radar network in Shanxi province. There was better effect of artificial rainfall by combining with radar echo data analysis of the moving direction and speed shift and the choice of the aircraft operating rainfall as well as operati commanded through using ng th time. The ground anti-aircraft rockets and anti-hail artificial rainfall operations e vertical accumulated stratification of liquid water and the ration at 0℃.