2008年6-8月河南空中云水资源分布特征

Distribution Features of Cloud Water Resources Over Henan Province in June to August,2008

利用FY2号卫星观测的2008年6-8月OLR资料和T213提供的相对湿度资料,分析了2008年夏季(6-8月)河南空中云系特征和水汽的空间分布,结果表明:实时OLR产品图像可以作为一幅天气图,进行数值化分析和处理。OLR值可以反映中高纬地区对流活动的强弱。2008年夏季,OLR的月平均分布与夏季月总降水量有较好的对应关系;相对湿度月平均分布与河南省月降水量趋势基本一致。

Based on the OLR data from FY-2 satellite and relative humidity data from T213 during June to August, 2008, the characteristics of cloud systems and spatial distribution of water vapor over Henan province in summer of 2008 were analyzed. The results indicated that a real time OLR product image can be used as a weather nephogram and then numerical analysis and processing can be carried out. OLR value can reflect the intensity of convection in middle and high latitudes. In the summer of 2008, the distribution of monthly average of OLR corresponded well to the monthly precipitation and the distribution of monthly average of relative humidity had approximately the same trend with the monthly precipitation in Heuan province.