本論文報告並討論了我們在1999–2001 年間以Rayleigh/Mie Lidar (光達) 遙測10–30 公里的夜間的大氣溫度、卷雲、以及氣膠的方法與結果。我們詳細分析了溫度計算以及以光達方程式解出背向散射係數的各種可能誤差, 以此決定光達系統的觀測操作條件。在溫度的
測量上, 我們除了以背景氣膠對散射光訊號作修正之外, 並提出新的低空大氣密度的演算法來提高溫度計算的準確性。溫度的測量結果除了與氣象局的探空資料相當吻合之外, 並顯示出光達在研究大氣溫度的長期與短期性變化的潛力。卷雲及氣膠的測量結果除了與衛星的氣膠與雲頂高度資料作比較之外, 我們並針對卷雲發展出估計 Lidar Ratio 與多重散射因子的方法, 降低了卷雲光散射性質的可能誤差。我們發現目前平流層背景氣膠的高度分佈主要在25–30 公里之間, 而卷雲則集中出現在夏季的對流層頂附近, 高度分佈則顯現出熱帶與副熱帶的混和形式。此外, 對流層氣膠的高度分佈被發現可能與卷雲有關, 而卷雲本身的消偏振率與消光係數則顯示出卷雲的各種光散射性質可能主要與卷雲的粒徑有關。

The Rayleigh/Mie Lidar measurements about the aerosol, cirrus, and temperature between 10-30 km above Chung_li are reported in this thesis. The analysis methods and errors was studied in detail. The results are compared with HALOE satellite data and showing good agrees. The liscattering properties are found to be relative with the size of cirrus particles.

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