Flf_mean are the mean fluxes over the years mentioned in mm/day
gxg (ghg/glg) have the unit m-NAP, except for the ghg_1998-2006_l1 and glg_1998-2006_l1, these have unit m-MV.
This is correct in the ghg_1998-2006_l1_m_nap and glg_1998-2006_l1_m_nap.

infolin3_cl_repos is in m-MV (classes)