ECOPOTENTIAL Alpine grasslands Mountains Earth Observation Ecosystem Respiration Gran Paradiso National Park Protected areas carbon dioxide fluxes Carbon dioxide fluxes Critical Zone DEIMS Doñana EO EODESM Earth Observations Ecosystem services Essential Variables Flux Chambers Gross Primary Production Gross primary production Har Ha Negev Invasive Species Mapping Lakes Mountain Net Ecosystem Exchange On-line data services Protected Areas from Space SARWIND LG-Mod algorithm Science Policy Uncertainty Users Virtual Laboratory decision-making flux chamber gBay mar-o-sel.net modelling recommendations statistical data analysis