| The objective of the thesis is to develop a general design tool based on the Geographical Information System (GIS) for the simulation of water resource management. The Scientific Visualization System (SVIS), Global Positioning System (GPS), Differential Global Positioning System (DGPS), and Remote Sensing (RS) are used to produce three-dimensional GIS watershed maps of exceptional accuracy. The maps can be readily updated for changes in land use, landslides, and the stream system.; SVIS changes a two-dimensional GIS map into a three-dimensional GIS map. GPS and DGPS establish the precise three-dimensional position coordinates of the watershed, and thus correct the less accurate geo-referenced position database of GIS. RS collects the most recent land-surface information of the watershed.; The simulation of the water runoff on a vegetable farm in the Te-Chi Reservoir Watershed in Taiwan was used as an example to appraise the performance of the improved GIS design tool. The Watershed was assumed to be homogeneous. |
