The User Data Gateway (UDG)

The User Data Gateway (UDG) is the one stop shop for climate data access maintained by the ?Santander MetGroup. The UDG builds on three components:

• Registration and authentication portal (UDG-TAP)
• THREDDS Data Server (?UDG-TDS catalog)
• User-friendly interfaces for (remote) data access.

The authorization is organized in thematic groups, according to the data policies of different projects and international initiatives. Each group provides access to a particular catalog of datasets:

• PUBLIC_DATA (open). Includes data from publicly available datasets: observations (WFDEI), reanalysis (NCEP reanalysis1), seasonal re-forecasts (CFS_v2). Variables.
• SPECS, EUPORIAS and NACLIM (restricted to members of the above ECOMS projects). Provide access to private seasonal re-forecasts (System4) and reanalysis (ERA-Interim, JRA-55). Variables.
• VALUE and CORDEX-ESD (restricted to project members). Provide access to a subset of standard statistical downscaling predictors from reanalysis (ERA-Interim, JRA-55). Variables.
• ESGF-CORDEX. Interim group for accessing CORDEX datasets during ?ESGF shutdown.

A schematic view of the UDG is provided in the figure below.