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Proceedings Paper

A new algorithm and its application about distributed snowmelt concentration model
Author(s): Yongqiang Liu; Wei Dai; Shifeng Fang; Zhihui Liu
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Paper Abstract

Based on "3S" (RS, GIS, GPS) technologies and completely distributed design ideas, a new algorithm of the Distributed Snowmelt Concentration Model is designed and built after study the Distributed Snowmelt Runoff Model. It has spatiotemporal features and takes the DEM data, which with high resolution, as a foundation and picks up the hydrological factors, such as slope, gradient, direction of flow, collecting time, drainage network etc., and the algorithm is simple to understand and to implement, requiring only a few tens of code lines and running faster. So the algorithm will be versatile. Meanwhile, a new conception "Period Unit of Time-step" is put forward in this paper, and the algorithm procedure is fully detailed too. After the model applied in the representative study area, Juntanghu Basin, which located in the North-Tianshan Mountains, China, and contrasted with the homologous observed data obtained in the same field, the simulation results show clearly that the Distributed Snowmelt Concentration Model and its algorithm is very good.

Paper Details

Date Published: 11 November 2008
PDF: 9 pages
Proc. SPIE 7146, Geoinformatics 2008 and Joint Conference on GIS and Built Environment: Advanced Spatial Data Models and Analyses, 71461V (11 November 2008); doi: 10.1117/12.813159
Show Author Affiliations
Yongqiang Liu, Xinjiang Univ. (China)
Oasis Ecology Key Lab. of MoE and Xinjiang Uygur Autonomous Region, Xinjiang Univ. (China)
Wei Dai, Xinjiang Univ. (China)
Oasis Ecology Key Lab. of MoE and Xinjiang Uygur Autonomous Region, Xinjiang Univ. (China)
Shifeng Fang, Xinjiang Univ. (China)
Oasis Ecology Key Lab. of MoE and Xinjiang Uygur Autonomous Region, Xinjiang Univ. (China)
Zhihui Liu, Xinjiang Univ. (China)
Oasis Ecology Key Lab. of MoE and Xinjiang Uygur Autonomous Region, Xinjiang Univ. (China)
International Ctr. for Desert Affairs (China)


Published in SPIE Proceedings Vol. 7146:
Geoinformatics 2008 and Joint Conference on GIS and Built Environment: Advanced Spatial Data Models and Analyses
Lin Liu; Xia Li; Kai Liu; Xinchang Zhang, Editor(s)

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