TCO - Terrestrial Carbon Observations database

The observation strategy will use various measurement techniques and models to minimize estimation errors. This will be achieved through the coupling of two main flux estimation approaches, 'bottom up' (through ecosystem process models based on driven by diverse gridded data) and 'top down' (atmospheric inversion models constrained by a range of input data types).

Both methods require satellite and in situ data. Policy makers need information on carbon sources and sinks at the national and sub-national levels in order to develop future emission trading arrangements that involve forests and other ecosystems. While such information is likely to be provided through various methods, there will be a need for a globally consistent source to serve as a reference and a basis for comparison.