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通过对2010年8月24日积冰过程的分析得出:这次积冰发生地点附近为垂直运动上升区,配合云中密集的冰水混合物,是造成这次飞机严重积冰的主要原因。积冰指数对于积冰强度和区域的预报具有指示意义。WRF中尺度数值模式选用Eta Ferrier微物理方案的模式结果中的云冰、云水以及总凝结混合比,这对于积冰强度和范围有一定的预报能力。
Based on the analysis of the ice accumulation process on August 24, 2010, it is concluded that the vicinity of the ice accretion area is a vertical movement uplift zone, which is the main reason for severe ice accretion caused by the ice accretion with the ice-water mixture in the cloud. The ice accretion index is indicative of ice accumulation intensity and area prediction. The WRF mesoscale numerical model uses cloud ice, cloud water, and total coagulation mixing ratios in the Eta Ferrier micropattern mode results, which have some predictive power over the ice thickness and extent.