本文利用WRF模式配合EAKF資料同化系統，針對SoWMEX期間一中尺度對流渦旋進行投落送資料的資料同化實驗，藉以了解同化投落送資料對模式初始場與後續的數值模擬有甚麼影響。後再利用系集預報的特性將系集成員分組進行合成分析，藉由討論不同成員間的差異進一步了解此中尺度對流渦旋個案的生成機制。
模擬結果顯示，同化投落送資料可以獲得更接近觀測的中低層初始風場，使模擬結果具有較強的低層噴流帶，並且可以增加渦旋發展區域的水氣混合比與降低區域內氣壓，為該處創造有利對流的環境。系集成員差異之結果與投落送實驗相似，成員中降水與雷達回波模擬較佳的組別在渦旋發生區域也比模擬較差的組別有更強的西南低層噴流、較低的氣壓與較多的水氣傳送與輻合。因此，低層水氣輻合進入渦旋顯然在渦旋的增強過程中扮演關鍵的角色；同時，實驗也發現模擬結果較佳者在渦旋中層有較明顯持續增溫的情形。可見本文個案之中尺度對流渦旋的增強與第二類條件不穩定機制有關，較強的西南風將較多的水氣送入渦旋，水氣上升凝結後釋放較多潛熱導致中層增暖，進而使得渦旋持續增強，形成一正回饋的機制，有利個案成長為一成熟的中尺度對流渦旋。

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