用卫星云图确定栅格上地形高度的方法及其应用

Application of satellite cloud atlas to determine topography elevation

对黄河中游无定河地区,直接从像素入手,采用小波分析和三角化等方法处理,将卫星云图信息转换成水文模型计算所需要的高度、坡度等基本资料进行水文模拟计算,并取得较好效果。分析表明在水文学中应用卫星云图遥感信息计算地形,可进行水文模型建立和模拟计算,且能有效提高水文预报的预见期,是卫星云图信息应用于水文领域的一积极方法。

This paper, direct from the pixel element, treated by methods of small wave analysis and triangulation etc, the satellite cloud atlas information can be turned into the basic data needed in hydrology model calculation such as elevation, slop and so on. This analysis showed that using the satellite cloud atlas to simulate and calculate the hydrologic model can effectively improve the hydrologic forecast.