A digital hydrological model of high, cold alpine areas and its application

Zhenxia Mu; Huifang Jiang; Liang Peng; Ying He

doi:10.1117/12.873278

3 November 2010 A digital hydrological model of high, cold alpine areas and its application

Zhenxia Mu, Huifang Jiang, Liang Peng, Ying He

Proceedings Volume 7841, Sixth International Symposium on Digital Earth: Data Processing and Applications; 78411N (2010) https://doi.org/10.1117/12.873278
Event: The Sixth International Symposium on Digital Earth, 2009, Beijing, China

Abstract

In a watershed of high cold alpine areas mainly supplemented with melted snow, glacier water and rainfall, the spatial distribution of runoff is extremely uneven over the whole region. With the development of DEMs and the advances on GIS technology, digital hydrology was developed, digital hydrology construction was enriched, and powerful technical support was provided to the discipline in recent years. Models can preferably reappear represent real hydrology processes; moreover the selection of partial parameters has the persuasive power to overcome the influences of artificial and subjective factors. Utilizing the technology of remote sensing (RS) and GIS the space distribution of underlying information, intermediate-state information and cover information of basin snow cover each time RS images are acquired and portrayed in the study of basin hydrologic processes. Based on the Xinanjiang Model, a digital hydrological model which suits streams mainly supplemented with melted snow, glacial water and rainfall in alpine regions was established. The model was applied to simulate snowmelt-runoff in 2005.The results were good and reflect the actual changing trend of in runoff. The deterministic coefficient of forecast projections is 0.812.

Citation Download Citation

Zhenxia Mu, Huifang Jiang, Liang Peng, and Ying He "A digital hydrological model of high, cold alpine areas and its application", Proc. SPIE 7841, Sixth International Symposium on Digital Earth: Data Processing and Applications, 78411N (3 November 2010); https://doi.org/10.1117/12.873278

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