Author(s): Jie Gao; Xudong Fu; Guangqian Wang; Hao Wang; Haiyun Shi; Yuanjian Wang
Linked Author(s):
Keywords: Potential Snow Covered Elevation (PSCE); Snowmelt; Snow covered are
Abstract: Explaining the spatial and temporal distribution of snow is the basis for snow hydrological simulation. An Index of PSCE (Potential Snow Covered Elevation) is conceptualized and proposed to identify the snow-free or snow-covered state in a certain time at a certain elevation in mountainous regions. It could characterize the snow-covered elevation rises as weather warms and falls when weather cools. Two variables: MN and DN are suggested to describe PSCE. Based on the “Long-term snow depth dataset of China (1978-2005)” and DEM data of SRTM in Lhasa River basin, Niyang River basin and Changdu region of eastern Tibet, China, the temporal distribution of MN and the relationship between DN and elevation are obtained. PSCE in the three regions of eastern Tibet is quantified based on the calculation of MN and DN. It would provide a simple way in large-scale hydrological modeling and water resources management.
Year: 2009