KEY CONSIDERATIONS FOR IMPROVING PROSAIL ESTIMATIONS: AN EXPLORATIVE ANALYSIS

Monitoring forest ecosystems through their biophysical characteristics such as leaf area index, chlorophyll content, leaf mass per area, and equivalent water thickness is essential for gaining deeper insights into vegetation dynamics. Radiative transfer models such as PROSAIL play an important role in simulating the interaction between solar radiation and vegetation canopy. The inversion of PROSAIL allows the retrieval of canopy scale biophysical variables. This study investigates key approaches to improve PROSAIL estimates, including adjustments to the input parameter range, the soil background, and the spectral subdomains. The results demonstrate that the cumulative application of these strategies improves the accuracy of biophysical variable estimations.