MODIS影像水体监测方法研究进展  

Progresses in Methods for Extracting Water Body Information from MODIS Images

作　　者：郭鹏[1,2] 邹春辉[1,2] 赵学斌[1,2] 

机构地区：[1]中国气象局河南省农业气象保障与应用技术重点实验室,郑州450003 [2]河南省气象科学研究所,郑州450003

出　　处：《气象科技》2012年第6期869-873,901,共6页Meteorological Science and Technology

基　　金：淮河流域气象开放研究基金项目"淮河流域水资源遥感监测与评估技术研究"(HRM200901)资助

摘　　要：水体与植被、城市、土壤等地物在不同波段的光谱反射率的差异是利用遥感手段提取水体信息的基本原理。在水体光谱特征分析的基础上,介绍了MODIS数据特征以及各种水体信息的提取方法,比较了这些方法的优点和不足,并详细描述了各种水体指数的应用效果。水体指数法是目前最受关注的水体识别方法。综合利用各种水体指数和波段特征来提取水体信息,可有效排除其他地物的干扰,显著提高了水体监测的精度,从而为大范围的水资源与水环境动态监测迅速提供可靠的数据。The differences of different band reflectance among water body, vegetation, urban area, soil and other objects are the foundation of extracting water body information by means of remote sensing data. Through analyzing the spectral characteristics of the water body information in remote sense images, the characteristics of MODIS image data and the methods for extracting water body information are introduced, and then the advantages and disadvantages of these methods and the effectiveness of the different water body indiees are described in detail. The water body index is widely used to extract water body information. The results show that to apply different water body indices and spectral characteristics of MODIS data comprehensively can reduce substantially the influence of other different ground objects and extract water body information with a high precision, so to provide a quick and reliable basis for dynamic monitoring of water resources and water environment.

关 键 词：MODIS 检测方法 光谱特征 水体指数 

分 类 号：X831[环境科学与工程—环境工程]