Abstract

GIS and modelling packages have become important tools for resource management and environmental planning at the watershed level. Integration of the two technologies evidently greatly improves data analysis and manipulation, and model turnaround times. High performance here depends heavily upon creating and organizing GIS data sets in a proper structure for transferring them to executing models in an efficient way. In this chapter, an effective method for handling gradient data, one of the major parameters for water resources modelling, is addressed. Experimental results are presented and analyzed.

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