This is a demo version of the Footprint Tool - an online tool to analyze potential contributions of natural fluxes and anthropogenic emissions to the atmospheric CO2 concentrations at a selection of ICOS atmospheric stations. The tool is still under development and will be extended to include all currently existing and planned ICOS sites.
The Footprint Tool is based on model simulations of the up-stream influences on the observation location, the so-called footprints. Theses footprints are coupled to surface flux maps in order to derive tracer concentration changes at the station. Both, footprints and concentration time series, are displayed on the Footprint Tool webpage, providing a simplified approach for the evaluation of measurement strategies.
Click on the screen shot below to start the tool. Please note that the animations are so far only working reliably on Firefox, Google Chrome, and Safari.