碩士 / 國立臺灣海洋大學 / 海洋環境資訊系 / 107 / The South China Sea (SCS) is a semi-enclosed marginal sea, where is an eddy-active zone. Eddies play an important role in transporting heat and matters in the ocean. When a cyclonic eddy is generated, upwelling will occur at its center, but the situation is reversed for an anticyclonic eddy. Previously, satellite altimeters were often used to track eddies, and the upwelling and downwelling at eddy centers could be observed through satellite-measured sea surface temperature. However, we found that no significant upwelling or downwelling at some eddy centers in Northern South China Sea (NSCS), based on the Expendable-bathythermograph (XBT) routine surveys. Thus, the main purpose of this study is to find out the marine environments that are favorable for the upwelling or downwelling to occur at the eddy centers in the NSCS, by using in-situ and satellite observations. Our finding showed that when cold waters transported into the NSCS, the local ocean stratification became weaker, making significant upwelling and downwelling at the eddy centers.
| Identifer | oai:union.ndltd.org:TW/107NTOU5276005 |
| Date | January 2019 |
| Creators | Chien,Ya-Tang, 簡雅堂 |
| Contributors | Chun Hoe Chow, 曹俊和 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 67 |
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