Surface Water Detection and Analysis in Five Basins in Beijing and Its Surrounding Regions Based on Beijing-1 Small Satellite Data
基于北京一号小卫星的北京及周边五大流域地表水资源监测与分析

As an important composition of water resources, surface water can reflect the situation of water resources in certain degree. Firstly,using Beijing-1 small satellite data surface water classification standard and its extraction method were studied and surface water resources in Five Basins of Beijing and its surrounding regions in 2007 was detected,secondly its temporal and spatial distributions rules, annual variance characteristics and variance reasons were analyzed with meteorological and hydrological data. The results are as follows: ① Surface water information can be well extracted using Beijing-1 multi-spectral data with panchromatic data. ②The surface water change char-acteristic in Five Basins of Beijing and its surrounding regions in 2007 was related to the average precipitation in 2007,the annual precipitation variance and reservoir regulation and storage and so on.