Mesoscale interactions between planetary boundary layer and land-surface ecosystem processes. Improving mesoscale weather forecasts through realistic simulation of ecosystem-atmosphere energy exchange. Process modeling of the biophysical exchange of energy and trace gases (i.e. CO 2 , H 2 O, and O 3 ) between terrestrial ecosystems and the atmosphere. Vegetation Remote Sensing - Retrieval of vegetation biophysical parameters (e.g. leaf area index, surface temperature etc.) from multispectral data. Prediction of regional ecosystem productivity and ozone uptake by combining satellite-derived LAI maps with ecosystem simulation models. Modeling ecosystem response to changes in climate and ambient CO 2 concentration.