碩士 / 國立臺灣海洋大學 / 海洋環境資訊學系 / 99 / Archiving, Validation and Interpretation of Satellite Oceanographic data program (AVISO) multi-satellite sea surface height (SSH) data were processed to study the spatial and temporal distribution of SSH changes in the northwestern Pacific. From statistical analyses, we found that from 1993 to 2008 the SSH had an upward trend. The lowest SSH was found in 1997 and the highest SSH was occurred in 2008 during the data span period. From the linear regression analysis, the SSH rate in this region was 4.2 mm/yr. The sea level distribution of near-shore is roughly parallel to the coastline. The lower sea level is near the coastal area, while sea level is higher off the coastline. The SSH direction of spatial distribution is northeast-southwest. Besides, the change rates of SSH are differences in three geographical areas, i.e., Yellow Sea, East China Sea and South China. The SSH changes with seasons, the highest SSH is mostly found in July and August. Most of the lowest SSH is occurred in February and March. Trends are like this: the highest rate in summer and fall, followed by winter, and the lowest rate in spring. This result shows that the changes in SSH has a high correlation with the seasonal variation. The latest largest El Niño was occurred in 1997-1998. The rapid rising in SSH during this period indicates the high correlation between the SSH change with the onset of El Niño.
| Identifer | oai:union.ndltd.org:TW/099NTOU5282014 |
| Date | January 2011 |
| Creators | Chien-Chung Liu, 劉健仲 |
| Contributors | Chung-Ru Ho, 何宗儒 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 53 |
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