A new algorithm and its application about distributed snowmelt concentration model

摘要：

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.

关键词： DEM 3S GeoTIFF Distributed Snowmelt Concentration Model

作者: LIU Yongqiang DAI Wei Shifeng FANG Zhihui LIU

作者单位: College of Resources & Environment Science,Xinjiang University,Urumqi,P.R.China;Oasis Ecology Key la College of Resources & Environment Science,Xinjiang University,Urumqi,P.R.China;Oasis Ecology Key la

会议类型: 国际会议

会议名称: 第16届国际地理信息科学与技术大会(16th International Conference on GeoInformatics and the Joint Conference)

会议地点: 广州

会议语种:英文

在线出版日期: 2008-06-28（万方平台首次上网日期，不代表论文的发表时间）