碩士 / 國立屏東科技大學 / 土木工程系所 / 101 / Taiwan's coastal areas due to the overdevelopment and the impact of extreme weather, the erosion of sandy line is more obvious than in the past, coupled with recent years, the effect of global warming and sea level rise, resulting in land loss, coastal erosion and coastal construction related issues gradually by the attention of scholars in various fields and explore. In this study, forestry aerial survey provided in 1990, 2001 and 2010 aerial map and using the set fold function in AutoCAD software to establish the spatial data, respectively, to investigate the Kenting Tai Wan, Hualien cattle ShanHu court, Tainan Camptotheca acuminata gold the coast, Taitung ShanyuanCamping, Keelung Yenliao, and Taoyuan Jhuwei beach, the tendency of area variation in these beaches for the three years. Then, a back propagation neural network model is developed based on these available data. The feasibility of using the model is verified, and the long term variations of coastline are estimated for the years of 2015 and 2020. Combined with research and on-site investigation to explore, the beach Jhuwei Camptotheca acuminata Gold Coast suffered erosion phenomenon is more obvious and serious Kenting Tai Wan the Shanyuan baths as well as cattle ShanHu tribunal due to the influence of natural and man-made, showing that the coastline do have an decreasing at some local regions. The Yenliao beach no significant invasion of silt circumstances only partial beach area cumulative change of direction. In addition, according to the beach area variation compare results, only the the Camptotheca acuminata Gold Coast and cattle ShanHu atrium excess the 95% confidence interval, the rest of four beach are all in the confidence interval, the results of this study should be able to provide follow-up research and development and a positive reference.
| Identifer | oai:union.ndltd.org:TW/101NPUS5015007 |
| Date | January 2013 |
| Creators | Hsien-Chang Lu, 呂憲璋 |
| Contributors | Tienfuan Kerh, 柯亭帆 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 125 |
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