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研究生中文姓名:徐寶珍
研究生英文姓名:Hsu, Pao-Chen
中文論文名稱:應用經驗正交函數分析太平洋海面溫度變化
英文論文名稱:Analyses of Sea Surface Temperature in the Pacific Ocean Using Empirical Orthogonal Function
指導教授姓名:何宗儒
口試委員中文姓名:教授︰郭南榮
副教授︰鄭志文
學位類別:碩士
校院名稱:國立臺灣海洋大學
系所名稱:海洋環境資訊系
學號:4044E005
請選擇論文與海洋研究相關度:直接相關
請選擇論文為:學術型
畢業年度:106
畢業學年度:105
學期:
語文別:中文
論文頁數:26
中文關鍵詞:海水表面溫度太平洋經驗正交函數聖嬰現象太平洋十年振盪
英文關鍵字:Sea Surface TemperaturePacific OceanEmpirical Orthogonal FunctionEl NiñoPacific Decadal Oscillation
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海水表面溫度是觀察海洋變化的最佳參數之一,因其會受到海洋與大氣循環相互作用影響。本研究使用取自National Oceanic and Atmospheric Administration (NOAA)衛星裝載的Advanced Very High Resolution Radiometer (AVHRR)感應器所推導出的海面溫度資料,分析1981年到2016年太平洋的海面溫度變化。首先將研究範圍分成北太平洋(赤道到北緯60度和東經100度到西經100度)、南太平洋(赤道到南緯60度和東經150度到西經75度)與整個太平洋(北緯60度到南緯60度和東經100度到西經100度),分別應用經驗正交函數(Empirical Orthogonal Function, EOF)進行分析,並與太平洋海洋氣候的重要指標:海洋聖嬰指標(Oceanic Niño Index, ONI)、太平洋十年振盪(Pacific Decadal Oscillation, PDO) 進行相關性分析討論。研究中發現,北太平洋、南太平洋和整個太平洋的EOF第一模態反映跨年尺度的聖嬰現象對太平洋海水表面溫度的影響,而南太平洋海面溫度的影響較北太平洋更為顯著。同時也反映部分PDO對海面溫度的影響,但相關性較ONI小。在EOF第二模態反映海水表面溫度為上升趨勢,從其主成分時間序列發現,南太平洋每年約上升0.0792 C,相較於北半球的0.0744 C,南半球的上升趨勢似乎較為顯著。EOF第三模態,反映1982-83年、1997-98年、2015-16年三次強烈聖嬰的現象。
Sea surface temperature (SST) is one of the best parameter for monitoring the changes of oceans because it would be affected by the interaction of circulation between oceans and the atmosphere. In this study, the SST data derived from National Oceanic and Atmospheric Administration (NOAA) satellites onboard the Advanced Very High Resolution Radiometer (AVHRR) are used to analyze the SST variations in the Pacific Ocean from 1981 to 216. The study areas are divided into the North Pacific Ocean (from equator to 60N in latitude and from 100E to 100W in longitude), the South Pacific Ocean (from equator to 60S in latitude and from 150E to 75W in longitude), and the whole Pacific Ocean (from 60S to 60N in latitude and from 100E to 100W in longitude) for discussion, respectively. The data are analyzed by using Empirical Orthogonal Function (EOF) and the results are then compared with the Oceanic Niño Index (ONI) and Pacific Decadal Oscillation (PDO). The first mode of EOF (EOF1) represents that the SST variation is caused by the El Niño phenomenon in all study areas. The phenomenon is more obvious in the South Pacific Ocean than that in the North Pacific Ocean. This mode also reflects the effect of PDO, but its correlation coefficient with principal component of EOF1 is less than that of ONI. The second mode of EOF (EOF2) reflects the SST increases possibly due to the global warming effect. The SST increases 0.0792C/year and 0.0744C/year in the South Pacific Ocean and the North Pacific Ocean, respectively. This implies that SST increase trend is higher in the South Pacific Ocean than in the North Pacific Ocean. The third mode of EOF (EOF3) reflects the distributions of three strong El Niño events in 1982-83, 1997-98, and 2015-16.
誌辭 I
摘要 II
Abstract III
目次 IV
圖目次 V
表目次 VI
第一章 緒論 1
1.1 前言與文獻探討 1
1.2 研究動機與目的 3
1.3 研究範圍 3
第二章 研究資料與處理 4
2.1 研究資料 4
2.2 資料前處理 6
第三章 研究方法與步驟 7
第四章 結果與討論 11
4.1 北太平洋 11
4.1.1 第一模態 11
4.1.2 第二模態 13
4.1.3 第三模態 14
4.2 南太平洋 15
4.2.1 第一模態 15
4.2.2 第二模態 16
4.2.3 第三模態 18
4.3 太平洋 19
4.3.1 第一模態 19
4.3.2 第二模態 20
4.3.3 第三模態 21
4.4 EOF結果與PDO之關聯性 22
第五章 總結與展望 23
5.1 總結 23
5.2 展望 24
參考文獻 25

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全文檔開放日期:2017/06/27
 
 
 
 
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