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In this study, we propose to simulate the dynamics of surface flow using a Topological Flow-path Network model (TFN) based on scale-adaptive DEMs (S-DEMs). This model makes full use of the high accuracy DEM data to extract topographical and hydrological characteristics from the terrain surface. It also assigns these characteristics with scale properties, thus building a stream-network-bounded scale-adaptive...
User experience and satisfaction of Web services and service chain are majorly determined by the quality of services (QoS), which is critical to services selection. Geo-data services and processing services are two fundamental services types of geo-services, where geo-data services provide geo-data, and processing services process and produce data. Therefore, the data quality of geo-data provided...
Geographic information service has been becoming the mainstream to provide GIS functions to users more conveniently. There are many geographic information services available among which some may have similar data and functions, thus how to choose the most proper and efficient one becomes the very problem. In recent years, more and more attention has been paid to the quality of geographic information...
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