This work is a contribution to the GLOSCAL project (Global Ocean Surface Salinity Calibration and Validation), which is a part of the CALVAL-SMOS project. Here we aim at calibrating and validating the SSS data from the SMOS satellite that was launched in early November 2009, by a systematic and global comparison with available in-situ data. To this goal, we use the Objective Analysis tools ISAS developed at LPO by F.Gaillard to produce global gridded field of Sea Surface Salinity and Temperature, using multiple source data (including Argo data). As ISAS has not been specifically developed to process data from the surface layer, a preliminary work has been required to adapt ISAS to this need. One improvement has been to include data from thermosalinographs to the analysis. Up to now, these data were not properly used as they require special quality control, even though huge amount of information can be extracted from this kind of data. The next step will be to produce gridded field of sea surface salinity and temperature from 2002 to now. We aim at being able to provide every month the 2 last months gridded fields, the annual mean cycle and a variance field being already given to the CALVAL-SMOS teams. The results of this study will be presented, and we will detail the methods used (the Objective Analysis and the quality control, especially on the TSG coming from different sources)