本研究計畫初期之首要目的為使用2003-2007 年追風計畫與2008 年T-PARC（包括：TH-08、TCS-08 及Driftsonde 國際觀測實驗）所量測的投落送資料來較驗衛星 QuikSCAT 與雲導風資料。此研究議題相當重要，因為已有多數作業單位嘗試使用 QuikSCAT 風場資料作為研判颱風七級報風暴半徑，另外，也有許多研究單位使用 QuikSCAT 風場來研判颱風中心的強度與外圍環流結構的變化。此外，這些衛星遙測風場準確度的資訊對於天氣分析與模式模擬的使用上也相當關鍵，尤其是在資料缺乏的海上。預期透過這些投落送資料對於衛星遙測風場資料的驗證與較驗研究上，將能提供新的較驗平台。另一研究重點則規劃進行T-PARC 國際觀測實驗特殊觀測儀器（包括：Dropsonde, driftsonde, 飛行高度大氣資料與SFMR 資料等）的資料分析、數值模擬與模式同化研究。此外，在獲得這些衛星與飛機資料的誤差特性後，後續的研究將使用這些衛星遙測資料與飛機觀測資料來進行颱風初始化的研究，藉以在中尺度模式中重建一個與觀測資料相符合的渦旋結構，並探討特殊強度、眼牆動力與結構變化的颱風研究議題。
The first goal of this study is to examine the accuracy of QuikSCAT and cloud-derived winds around the tropical cyclone area over the western North Pacific by the dropwindsonde measured by DOTSTAR and T-PARC (including TH-08, TCS-08, and the driftsonde program). This issue is very important because more and more operational centers are considering the QuikSCAT winds for identifying the radius of gale-force wind and some reanalyzed data in research center of tropical cyclone are using the QuikSCAT winds for obtaining the inner core and outer radius of the tropical cyclone. Furthermore, the basic knowledge on the accuracy of the satellite derived wind products is also important for weather forecasters and modeling meteorologist, especially for the data poor area around the tropical cyclone system. Another goal will plan to perform the data analysis and model simulation to investigate the special aircraft observation from T-PARC (including dropsonde, driftsonde, flight-level, and SFRM data). The validation and investigation of these unique satellite and aircraft dataset can also provide valuable information to reconstruct the inner core structure of tropical cyclone, thus improve the typhoon initialization, structure and intensity simulation in numerical model. Moreover, based on the well represented inner-core simulations, the issues of intensity, eye dynamic, and structure change of tropical cyclone could be further studied.
