2023-01-012024-05-17https://scholars.lib.ntu.edu.tw/handle/123456789/671585人為氣溶膠的增加，通過與太陽輻射和雲的相互作用，抑制了降雨、削弱陸海熱對比與季風強度、影響熱帶氣旋活動、改變了區域和全球氣候。近幾十年來，亞洲季風區的人為氣溶膠排放已經超過了歐洲和美國，對區域與全球氣候變化，添增了不確定性的人為因素。因此瞭解亞洲人為氣溶膠演變是掌握當今與評估未來區域與世界氣候變化的關鍵。硫酸鹽是亞洲人為氣溶膠的主要成分，本計畫我們將以年解析度分析臺灣針葉樹樹輪中的硫同位素，重建東亞人為氣溶膠的歷史，探討其對區域水文和大尺度水文氣候的影響。 The dramatic increase of anthropogenic aerosols emission through interactions with solar radiation and clouds change the regional and global climate, including suppressing rainfall, weakening land-sea thermal ratios, impacting monsoon intensity levels, and influencing tropical cyclone activity. Over the past decades, anthropogenic aerosol emissions in the Asian monsoon region have surpassed those observed in Europe and the United States, causing rising regional and global climatic uncertainty. Understanding anthropogenic aerosol variability in Asia is critical for evaluating climate change in the Asian monsoon territory and the rest of the world in the coming future. Work has shown that sulfate is a major component of Asian anthropogenic aerosols and can act as an appropriate proxy for assessing regional shifts in anthropogenic aerosols over time. In this project, we will use sulfur isotope records in tree-ring from Taiwan to reconstruct anthropogenic sulfur aerosol history over the past 100 years in East Asia and evaluate its effect on regional and global hydroclimate systems.氣溶膠; 硫同位素; 樹輪; 樹輪化學;aerosol; sulfur isotope; tree ring; dendrochemistry