應用遙測與空間分析技術於都市土地利用時空變遷監測及洪患風險評估之研究;Applying Remote Sensing and Spatial-Analysis Technique for Monitoring Urban Land-Use Change and Assessing Flood Risks Due to Urbanization

NCU Institutional Repository > 研究中心 > 太空及遙測研究中心 > 研究計畫 > Item 987654321/62441

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题名:	應用遙測與空間分析技術於都市土地利用時空變遷監測及洪患風險評估之研究;Applying Remote Sensing and Spatial-Analysis Technique for Monitoring Urban Land-Use Change and Assessing Flood Risks Due to Urbanization
作者:	陳繼藩
贡献者:	國立中央大學太空及遙測研究中心
关键词:	地球科學;土木水利工程
日期:	2012-12-01
上传时间:	2014-03-17 11:32:46 (UTC+8)
出版者:	行政院國家科學委員會
摘要:	研究期間：10108~10207;Rapid urbanization is creating societal impacts on the environment attributed to the increasing population. Understanding spatio-temporal dimensions of land-use changes and environmental risks that shape the urbanization is thus important to the process of urban planning. The goal of this project is to investigate the urban growth and flood risks due to rapid urbanization through remotely-sensed data and GIS technique. Following out the objective, the project is designed for a three-year period from 2012 to 2014. In the first year (2012), mapping the urban growth and landscape changes using Landsat and Rapideye images will be processed using two methods: linear mixture model (LMM) and artificial neural networks (ANNs). The purpose of using these two methods is to verify their effectiveness for urban growth mapping in the study area. The classification results will be validated using ground reference data collected from the field surveys. In the second year (2013), we carry out monitoring floods and their spatiotemporal dynamics using Landsat, Rapideye and MODIS images. The MODIS will be used to generate time-series maps showing spatiotemporal changes of flood inundation. However, flood maps will be also generated from Landsat and Rapideye data for comparison with MODIS-derived flood maps and for flood risk analysis. In the third year (2014), we will try to assess flood risks due to urbanization. Spatiotemporal variation of flooding inundation with respect to landuse change in the detected urban area will be evaluated, involving topographic and geographical data, for disaster risk accessment. Potential flood risk will be evaluated using elevation-based spatial analysis and remotely-sensed data. It is believed that the results could be useful for policymakers to devise a better urban planning and flood risk management strategy in the future.
關聯:	財團法人國家實驗研究院科技政策研究與資訊中心
显示于类别:	[太空及遙測研究中心] 研究計畫

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