Titlebook: Geographical Information Systems in Hydrology; Vijay P. Singh,M. Fiorentino Book 1996 Springer Science+Business Media B.V. 1996 Erosion.Gr

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Hydrologic Data Development, are needed, identifying sources of that data, converting the data into appropriate format for the GIS software, and maintaining the database. Quality control measures are important throughout the development process.

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Spatial Data Characteristics,g and integrating enormous amounts of geographic data efficiently. As shown in Figure 4.1, a GIS can be thought of as a powerful tool capable of creating and manipulating maps, with the necessary links to retrieve, manipulate, and update data from a database. Both maps and attribute data constitute

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GIS Needs and GIS Software,s our conviction that such an attempt does not belong in this book for two major reasons. First, the interest for a software compilation decreases rapidly over time due to permanent progress in computer technology as well as in this particular domain of software development. Secondly and principally

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Digital Terrain Modelling,ws differences between them in terms of accuracy and precision of the derived DTM and of optimal strategies for capturing morphologic features of study area. Two methods for creating DTM are analyzed, regular grid and triangulated irregular network, and the peculiarities of each one are illustrated.

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