摘要
以2002年4月18日Landsat TM/ETM+多时相、高分辨率遥感数据为主要数据源,对黄河三门峡至小浪底区间暴雨致洪水文下垫面进行调查。通过遥感图像处理、结合常规资料和野外调查,在水文下垫面主要因子分类基础上,建立解释标志。采用人机交互方式提取研究区地貌、土壤、植被、土地利用等信息,在较短时间内得到黄河三门峡至小浪底区间下垫面基本情况,对提高该区间水文预报精度、缩短洪水预见期具有重要作用。
An investigation was conducted on the hydrological underlying surface for rain-induced floods from Sanmenxia to Xiaolangdi in the mid-lower reaches of the Yellow River by means of the multiple time-phase,high-resolution remote sensing data of Landsat TM/ETM^+.Through remote image processing,in combination with conventional meteorological data and field surveys,based on the main factor classification,the indicators of factor interpretation were established.The information of topography,soil,vegetation,land u...
出处
《气象科技》
2005年第S1期156-160,共5页
Meteorological Science and Technology
基金
国家科技部社会公益项目(2002DIB20073)资助
关键词
黄河
遥感
水文下垫面
LANDSAT
暴雨致洪
Yellow River
remote sensing
hydrological underlying surface
Landsat
rain-induced flood
