利用AMSR-E和MODIS数据,探讨了微波穿透指数MVI与光学植被指数NDVI的关系。分析结果表明,两者呈负相关关系,相关系数为-0.463。利用两者关系建立回归方程,并且利用MVI数据模拟生成NDVI图像。与真实NDVI图像相比,模拟NDVI图像的精度达到0.626。综合各种因素,这一模拟结果比较令人满意。
In this paper,we study the relationship of microwave vegetation penetration index MVI and optical vegetation index NDVI,using AMSR-E and modis data.It shows that they are in the negative correlation and the correlation coefficient is-0.463.The regression equation is established according to the relationship.We simulate NDVI image using MVI data.Comparing with the real NDVI image,the accuracy of the simulated NDVI image is 0.626.Considering other factors,the simulation results are quite satisfactory.