GRACE LEGOS V1.1 is an ensemble of 1200 solutions considering  variation on 6 different processing parameters namely the processing centers (CSR, GFZ—GeoforschungsZentrum-, JPL, GRGS—Groupe de Recherche de Geodesie Spatiale-, and TUG—Graz University of Technology), the geocenter motion (Cheng et al. 2013, Lemoine & Reinquin 2017, Rietbroek et al. 2012, Swenson et al. 2008 and Wu et al.2017)and C20 (Cheng et al. 2011 and  Lemoine & Reinquin 2017) corrections, the filtering (4 from Kusche et al. 2009),the leakage correction over a 300-km-wide zone off the coastlines based on comparison with observation-based ocean mass estimates (2 ocean reanalysis) and the GIA correction ( A et al. 2013, Peltier et al. 2017 and Purcell et al. 2018.)

Update w.r.t. GRACE LEGOS 1.0
       - Leakage correction include 2 forward modeling runs to reduce Gibbs effect on Antarctica and Greenland  on top of the coastal land/ocean correction.
       - Correction of the dealiasing model (GAD RL05) to remove the degree1.
       - Correction on GIA model (Purcell et al. 2018) consistent with a zero degree1 and the rotational feedback.
       - Land water leakage correction over south Asia 

Please quote: 

Blazquez A., Meyssignac B., Lemoine JM., Berthier E., Ribes A., Cazenave A.; Exploring the uncertainty in GRACE estimates of the mass redistributions at the Earth surface: implications for the global water and sea level budgets, Geophysical Journal International, Volume 215, Issue 1, 1 October 2018, Pages 415–430, https://doi.org/10.1093/gji/ggy293

* grace_Legos.nc is a netcdf file containing the mean and 1.65 standard deviation (90% Confidence Level) of the ensemble.
* grace_Legos_ensemble.nc is a netcdf file containing the whole ensemble.
* grace_Legos_ensemble_no_gia.nc is a netcdf file containing the whole ensemble where gia need to be corrected to.
* Ocean_mass_and_contributors.dat is a text file containing the global series.