LEAF AREA INDEX PETRIEVAL BASED ON
REMOTELY SENSED DATA AND PROSPECT+SAIL MODEL
CAI Bo-feng 1,2 , SHAO Xia 2
1.Institute of Remote Sensing Applications, Chinese Academy of Sciences, Beijing 100101,China; 2.Beijing Municipal Research Academy of Environmental Protection, Beijing 100037, China
Based on simulations using the SAIL bidirectional canopy reflectance model coupled with the PROSPECT leaf optical properties model, the authors have obtained the vegetation LAI. The FLAASH model is used to ensure the accuracy of atmospheric correction. The LOPEX93 database and the JHU spectral library are employed to identify the input value of the model. The canopy reflectance is the key node to relate the PROSPECT+SAIL model and the remote sensing data, and hence the LAI can be retrieved from leaf biochemical properties, LAD and remote sensing data. In situ measurements of LAI are used to test the simulation results, and the error sources are analyzed.
蔡博峰, 绍霞. 基于PROSPECT+SAIL模型的遥感叶面积指数反演[J]. 国土资源遥感, 2007, 19(2): 39-43.
CAI Bo-Feng, SHAO Xia. LEAF AREA INDEX PETRIEVAL BASED ON
REMOTELY SENSED DATA AND PROSPECT+SAIL MODEL. REMOTE SENSING FOR LAND & RESOURCES, 2007, 19(2): 39-43.