NOAA/AVHRR资料在陕西省土地覆盖分类中的应用

APPLICATION OF NOAA/AVHRR INFORMATION IN LAND COVER CLASSIFICATION IN SHANXI PROVINCE

利用监督分类和阚值判别相结合的方法 ,在对不同地物的地表光谱特征进行分析的基础上 ,对NOAA/AVHRR各个季相的晴空资料分别进行了计算NDVI与判别分类 ,制作了陕西省遥感土地覆盖分类图 ,探索了一种通过NOAA资料进行宏观的土地覆盖分类的方法。此外 ,提出的用于遥感图像精校正的火点定位法 ,解决了地面控制点与遥感图像像元的对应问题。

By using the method of combining supervision, classification and differentiation of value, and on the basis of analyzing the characteristics of earth's features and spectrum of various surface features, this paper conducts respectively calculation NDVI and differentiation classification on NOAA/AVHRR clear sky data of various seasons and develops the classification figure of land vegetation of Shaanxi province through remote sensing technique. Thus, a new method of conducting land vegetation classification from macro-stand point of view through NOAA data was explored. Besides, a method of location fixation by fire spot to accurately refine the remote sensing figures was developed so as to solve the corresponding problem between land surface controlling spots and images of remote sensing figures.