结合MODIS云产品的黑龙江省2015年人工增雨潜力研究

Study on Artificial Precipitation Potential of Heilongjiang Province in 2015 with MODIS Cloud Product

[目的]研究2015年黑龙江省人工增雨潜力的时空分布。[方法]利用再分析资料计算降水转化率,并通过结合MODIS卫星云产品,从人工增雨的微物理条件出发进一步研究了黑龙江省2015年春季和秋季的增雨潜力。[结果]在春季的松嫩平原大部分地区以及秋季的松嫩平原与三江平原大部分地区,降水量和降水转化率均较小,存在一定的增雨潜力;春季,松嫩平原北部和三江平原中部存在适宜进行暖云催化增雨的区域;秋季,从松嫩平原北部至三江平原西侧存在许多适宜暖云催化增雨的区域,同时在松嫩平原北部与三江平原西侧的局部地区存在适宜冷云催化增雨的区域。[结论]该研究可为科学合理开展人工增雨规划及作业提供依据。

[ Objective ] The reseawh aimed to study the temporal and spatial distribution of artificial precipitation potentiality in Heilongjiang Province in 2015. [Method] The precipitation conversion rate was calculated by using the reanalysis data. The potential of rainfall in spring and autumn of Heilongjiang Province in 2015 was further studied by combining the MODIS satellite cloud product and the micro-physical condi- tions of artificial rainfall. [Result] In most parts of Songnen Plain in spring and in Songnen Plain and most of the Sanjiang Plain in autumn, the precipitation and conversion rate of precipitation were small, and there was some potential for increasing rainfall. In spring, there were areas suitable for warm cloudy catalytic enhancement precipitation in the northern part of Songnen Plain and the middle part of the Sanjiang Plain. In autumn, there were many areas suitable for warm cloudy catalytic enhancement precipitation from the northern part of Songnen Plain to the western part of Sanjiang Plain. At the same time, there were areas suitable for cold cloudy catalytic enhancement precipitation in the northern part of Songnen Plain and the western part of Sanjiang plain. [ Conclusion ] The study provides a basis for scientific and reasonable planning and operation of artificial rainfall.