Conference Agenda

Plant canopy characteristics are important indicators of several ecological and vegetation process. Vegetation Indices (VIs) are the most common used in these biophysical parameters retrieval, in which the most commonly used are Normalized Difference Vegetation Index (NDVI) and Enhanced Vegetation Index (EVI). However, due to the different design of the remote sensors, the calculation for the same VI might be different for two different sensors. Under the project of UAV for validating the satellite sensors products. We tested the VI sensitivity and robust in different sensors’ calculation. The results showed a high correlation (>0.9) betweent the same VI calculated from different sensors. The NDVI calculated from two sensors are ralitively the same, while the EVI calculated from Sentinel2 sensor are slightly lower than those from UAV sensor. Both the NDVI and EVI showed a larger variantion for high dense vegetation. In general, this study confirmed the robust VI relationships with biophysical parameters for sensors from different platform. The large variation for dense vegetaiton could be noticed in the further reaseach.