Retrieving Lai And Lcc Simultaneously From Sentinel-2 Data Using Prosail And Pso-Coupled Bi-Lut

The PROSAIL (Prospect + SAIL) canopy radiation transfer model is the most widely used physical model in vegetation parameter inversion, however, it is hard to achieve a balance between the accuracy and efficiency of the retrieval. In this paper, a PSO-coupled (particle swarm optimization) bi-LUT (look-up table) was used to retrieve LAI (leaf area index) and LCC (leaf chlorophyll content) from Sentinel-2 MSI (multi-spectral instrument) images, which largely reduced the time consumption of the inversion. The results were validated with ground measurements. The RMSE of retrieved LAI and LCC were 0.79 m(2)/m(2) and 7.1 mu g/cm(2), separately.