GF-1和MODIS影像冬小麦长势监测指标NDVI的对比

王利民,杨玲波,刘佳,杨福刚,姚保民

Comparison of Growth Monitoring Index NDVI between GF-1 and MODIS Images in Winter Wheat

Li-Min WANG,Ling-Bo YANG,Jia LIU,Fu-Gang YANG,Bao-Min YAO

图8 MODIS与GF-1像元NDVI对冬小麦长势监测精度比较 A: 原始GF-1与MODIS数据的NDVI相关性; B: 光谱与尺度归一后GF-1与MODIS的NDVI相关性; C: MODIS监测精度与GF-1 NDVI标准差的关系。

Fig. 8 Comparison of accuracy on monitoring winter wheat growth between MODIS NDVI and GF-1 NDVI A: correlation of NDVI between MODIS and GF-1 images; B: correlation of NDVI between MODIS and GF-1 after considering sensor difference and scale effects; C: relationship of MODIS monitoring accuracy and GF-1 NDVI standard deviation.