十一运会人工消（减）雨卫星反演产品特征分析

利用2009年10月16日MODIS和FY-2卫星资料以及Rosenfeld的卫星微物理反演分析方法对云的微物理特征进行反演,通过对云中粒子有效半径、过冷水含量等微物理特征以及消(减)雨作业情况的研究,初步分析了开幕式当日影响山东中西部地区天气系统的发展、变化特征以及作业效果。研究表明:蒙古气旋后部扩散南下的冷空气在东移过程中呈现出由初生到发展的变化过程;消减雨作业后,云顶高度持续下降,而未进行催化作业的云系则出现发展增强的现象,消(减)雨作业可能在一定程度上抑制了对流云系的发展。

Characteristics of Satellite Retrieved Products during Opening Ceremony of 11th Chinese National Games

By using the MODIS and FY 2 satellite data on October 16 2009 and the Rosenfeld satellite retrieval method, the cloud microphysical characteristics are retrieved. By analyzing the micro physical characteristics of cloud parameters, such as the effective radius of cloud particles and supercooled water content, as well as artificial rain reduction operating conditions, the preliminary impacts of weather systems on the opening ceremony and the effectiveness of artificial rain reduction are analyzed. It is showed that the cold air spread from the Mongolian cyclone was developed. After the artificial rain reduction, the height of cloud tops continued to decline while the no seeding clouds seemed to develop, which indicates that the artificial rain reduction operation suppressed, to a certain degree, the development of convective clouds.