1.MOD09A1数据
采用MRT工具对MOD09A1数据进行初步处理,得到8day7波段数据,数据处理如下:
2.EVI指数计算公式
evi指数计算公式采用近红外、红光、蓝光三个波段进行计算,公式如下:
MODIS数据波段介绍如下:
MODIS sensor has 36 spectral bands, seven of which are designed for the study of vegetation and landsurfaces: blue (459–479 nm), green (545–565 nm), red(620–670 nm), near infrared (NIR1: 841–875 nm; NIR2:1230–1250 nm), and shortw