At the current time, the access to the FLUXNET synthesis dataset is restricted to PIs of sites that have data in the FLUXNET synthesis set and people working on a paper proposal that has been accepted. If you would like to submit a proposal, please see the instructions here
. We are currently looking at adding other tower PIs that do not have data in the dataset to the access list. (As can be seen from the more recent entry above, all site contacts now can obtain logins on the fluxdata site).