Using GLDAS for computation of the hydrological loading signal

Petrov, Leonid
ADNET Systems/NASA GSFC; Leonid.Petrov@lpetrov.net

The Global Land Assimilation System (GLDAS) provides the field of soil moisture and accumulated snow cover starting from January 1979 and continuously update with a resolutions of 1/4deg x 1/4 deg x 3 hours and 1deg x 1deg 1 3 hours. We used these GLDAS products and computed the time series of displacements caused by the hydrological loading from the Noah, CLM, Mosaic, and VIC models for both a set of ~1000 space geodesy fundamental stations and for 1deg x 1 deg grid. Using a set of VLBI observations, we investigated the presence of modeled hydrological signal in observations.