Important usage notes

The flux files provided through this webpage contain raw inversion output. Only certain aspects of these fluxes are sufficiently robust for interpretation purposes. Therefore,

Period of validity

The period of validity selects the years considered homogeneous in time, in the sense that all atmospheric sites actually have data. Begin and end years (inclusive) of the period of validity are given in the download table and in the files themselves. Only those years should be used for any interpretative purpose.


The numerical flux resolution provided in the files is higher than the actual resolution in terms of information content. The latter is related to the spatial distance between the atmospheric sites, and the temporal density of sampling (including the effect of gaps). The appropriate type of filtering (aggregation, smoothing, compositing) depends on the application. You are welcome to discuss this with us.