I am using the biophysical processor in SNAP to estimate the Leaf Area Index (LAI) from Sentinel 2 Level 2 data. And I would like to know the accuracy of this model.
Does anyone know a paper on validation of the biophysical processor or numbers?
You can find more information about the Biophysical processor in the ATBD: http://step.esa.int/docs/extra/ATBD_S2ToolBox_L2B_V1.1.pdf
Thanks for your answer.
I already had a look at the ATBD. It has a very nice description of the biophysical processor, but it just mentions that LAI is strongly scale dependent.
But I am looking for a comparison between the LAI predictions of the biophysical processor and ground observations, preferably of several types of canopies.