Version 1.0

The following products can be found in these different directories under http://loading.u-strasbg.fr/V1.0/

APLO: 3-D displacements due to atmospheric loading, assuming an Inverted Barometer ocean response, for SLR (102), VLBI (203), DORIS (157) and IGS (424) sites
AGRA: Time-variable gravity field (as well as geocenter motions) due to atmospheric loading, assuming an Inverted Barometer ocean response, up to degree 72.
HGRA: Time-variable gravity field (as well as geocenter motions) due to continental hydrology (soil-moisture and snow), up to degree 72.

APLO, AGRA and HGRA directories are also sub-divided into the different ECMWF models used:

ERA40: 40 year ECMWF Reanalysis covering the 1970/01 - 2002/08 period.
ERAin: ECMWF Interim Reanalysis, starting in 1979/01, and run in almost real-time (a few month delay).
OPERA: ECMWF operational models, starting in 2000/12, and run in real-time (about one month delay). The operational model has already experienced some changes in 2006/02 (also in 2007/11 for the hydrology model), 2010/01 and 2016/03.

APLO/AGRA/HGRA products computed with the operational model are usually made available at the beginning of each month. For the ERA-interim, they are made available when the ECMWF database has been updated.
Displacements are computed in the Center-of-Mass (CM) reference frame.

More information can be found in the readme.pdf document.
Site displacements, respectively time-variable gravity, are written according to the EPHEDISP and AGRA formats.
A similar product (atmospheric loading using NCEP Reanalysis and IB assumption) has been made available by Leonid Petrov: http://astrogeo.org/ & http://gemini.gsfc.nasa.gov/

If you use this time series in your analysis, please cite:

Petrov, L., and J.-P. Boy, 2004. Study of the atmospheric pressure loading signal in VLBI observations, J. Geophys. Res., 109, B03405, doi: 10.1029/2003JB002500.