Proceedings of the 2013 International Conference on Advanced Computer Science and Electronics Information (ICACSEI 2013)

A new method of DEM drainage extraction based on geoprocessing service

Authors
Heng ling Huang, Qun yong Wu
Corresponding author
Huang
Keywords
DEM, geoprocessing service, automatic extraction, Jiulong river basin
Abstract
DEM-based drainage extraction is a hot spot in digital hydrology research. This paper has analyzed the method of drainage extraction based on DEM, used Hydrology tools in ArcGIS software to build the model of drainage extraction and published the model to geoprocessing service. Taking Jiulong River basin DEM as an example, this paper used geoprocessing service to realize drainage automatic extraction in the network environment. The comparison of GP-based drainage extraction and actual drainage system shows that using this GP-based drainage extraction method to extract Jiulong river basin in general can objectively reflect its space distribution .
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