碩士 / 國立臺灣海洋大學 / 海洋環境資訊系 / 103 / This study selects Landsat 7 ETM + satellite data, obtained between 2001 and 2014, to analyze the temperature variation of The Third Nuclear Plant coastal waters. Firstly, Landsat 7 ETM + channel 4 near infrared band satellite image data are used to identify marine and terrestrial range. Then, by using channel 6 thermal infrared satellite image data, the digital count (grayscale value) is converted to radiance according to the Landsat 7 formula. Furthermore, the algorithm of the southern Taiwan SST is regressed from the measurement temperature of inlet/outlet of The Third Nuclear Plant and the radiance of satellite data. The standard deviation between algorithm SST and measured SST is 2℃, and the average error is close to 0. And the determination coefficient (R2) reaches 0.47.
The Nanwan bay is a semi-enclosed basin. In general, the flood current is westerly and the ebb-tide current is easterly. Mostly, the wind is north-northeast (NNE) and northeastern (NE), and the average wind speed is greater than 7 m/s. The results show that the direction of thermal discharge is diffused southward and southwestward, but it is sometime diffused easterly and southeast. Therefore, the thermal discharge will be influenced by tide, topography, and wind. Moreover, sometimes, the maximum distance of thermal discharge(>2℃) is greater than 500 m. And the maximum distance of thermal discharge (>4℃) is almost less than 500m. The most areas of thermal discharge(2℃/4℃) are less than 1 and 0.1 km2 respectively.
| Identifer | oai:union.ndltd.org:TW/103NTOU5276019 |
| Date | January 2015 |
| Creators | Lin, Jhan-Tse, 林展册 |
| Contributors | Huang, Shih-Jen, 黃世任 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 91 |
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