臺灣博碩士論文加值系統

本研究利用衛星資料探討黑潮與親潮的交會海域於2003年1月至2013年12月期間葉綠素甲濃度和海表面溫度之長期月平均與跨年月平均的變化情形。同時對應南方振盪指數(Southern Oscillation Index, SOI)，說明聖嬰/反聖嬰時期海表面特徵之變化。本研究採用美國航空暨太空總署Aqua衛星上搭載的中解析度成像分光輻射計(Moderate Resolution Imaging Spectroradiometer, MODIS)所獲得的資料。研究結果顯示，日本群島的沿海終年有較高的葉綠素甲濃度分布，尤以春季最為明顯，靠近親潮流經海域的含量最高；黑潮流經海域的葉綠素甲濃度全年偏低，且區域範圍廣大，濃度的變化很小。海表面溫度呈現季節性變化，夏季海表面溫度最高，最高值出現在八、九月；冬季海表面溫度最低，最低值出現在二、三月，海表面溫度隨季節和緯度的變化，從南往北溫度逐漸降低，高低溫的變化層次非常明顯。黑潮流經海域高低溫差變化較小，親潮流經海域高低溫差變化較大。研究區域受到聖嬰與反聖嬰的影響，葉綠素甲濃度與海表面溫度的變化與南方振盪指數變化大致一致。

This study investigates the intersection of the Kuroshio and the Oyashio from January of 2003 to December of 2013. The changes of chlorophyll-a concentration (Chl-a) and sea surface temperatures (SST) were measured by using NASA’s Aqua satellite equipped Moderate Resolution Imaging Spectroradiometer (MODIS) data. The Southern Oscillation Index (SOI) is also considered to explain changes of sea surface characteristics during periods of El Niño and La Niña. The investigation shows that the shores of Japanese Islands have a higher Chl-a for the entire year, it is pretty obvious in the spring season, the Chl-a is at its peak in the vicinity of the Oyashio. As for the Kuroshio area the Chl-a is low all year round, and it covers a wide range with smaller spatial variation. The SST displayed a seasonal change, at its highest in the summer season, which is around August and September. It’s at the lowest in winter season, which appears in February and March. The SST changes according to seasonal and latitudinal changes, it decreases from south to north. The level of SST change is apparent, it is relatively small in the Kuroshio area, but relatively big in Oyashio area. The effect of El Niño and La Niña is also apparent, these changes of Chl-a and SST are consistent with changes of the SOI.

謝辭 I
摘要 II
Abstract III
目錄 IV
圖目錄 V
表目錄 VI
第一章 前言 1
1.1 研究動機 1
1.2 研究區域概述 2
第二章 資料來源與研究方法 4
2.1 研究資料來源 4
2.1.1葉綠素甲濃度 4
2.1.2 海表面溫度 5
2.1.3南方振盪指數 5
2.2 研究方法 6
2.2.1 長期月平均 6
2.2.2跨年變化與SOI 之關係 7
第三章 結果與討論 8
3.1 衛星影像分析 8
3.1.1葉綠素甲濃度 8
3.1.2海表面溫度 10
3.2 研究區域內特定點長期月平均資料分析 12
3.2.1 各特定點的葉綠素甲濃度之長期月平均變化 12
3.2.2 各特定點的海表面溫度之長期月平均變化 13
3.3研究區域內特定點月平均之跨年變化資料分析 14
3.3.1各特定點葉綠素甲濃度月平均值之跨年變化 14
3.3.2各特定點的海表面溫度月平均值之跨年變化 15
3.4各特定點與南方震盪指數之跨年變化 17
3.4.1葉綠素甲濃度與SOI值之分析 17
3.4.2海表面溫度與SOI值之分析 18
第四章 結論與展望 21
4.1 結論 21
4.2 展望 22
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