Assessment of terrestrial vegetation dynamics from MODIS fAPAR chl product and land surface model

The new fAPAR chl /LAI chl product from the Moderate Resolution Imaging Spectroradiometer (MODIS) satellite sensor is used to quantify and understand vegetation dynamics under changing climate, in selected flux tower sites and nearby local regions. Based on the comparisons of flux tower measurements with land surface model CLM simulated GPP, preliminary results show MODIS fAPAR chl /LAI chl product depicts seasonal variation patterns and phenology over different kinds of biomes quite well. Through integrating the new MODIS f APAR chl /LAI chl product into land surface model, there is a potential to simulate carbon fluxes in a better way.