== The User Data Gateway (UDG) ==

The User Data Gateway (UDG) is the main access point to the different data services provided by the [href://www.meteo.unican.es Santander Meteorology group]. The UDG builds on a a THREDDS Data Server, UDG-TDS) and on a web portal for user authorization (the THREDDS Administration Portal, UDG-TAP). In addition to the standard web interface to explore and download the datasets, the UDG includes different (R and Matlab) packages for accessing remotely subsets of the data. A schematic view of the UDG is provided in the figure below.


* '''[wiki:./registration Registration and group membership]''' 
* '''[wiki:./catalog Catalog of datasets]'''
* '''Accessing Data:''' [wiki:udg/accessdata]  
   * '''R package''': [wiki:./RPackage#Lateststablereleaseseewhatsnew link to Latest stable release] 
   {{{#!comment
   * `ecomsUDG.Raccess` [https://github.com/SantanderMetGroup/ecomsUDG.Raccess Development version]
   * [raw-attachment:udg.py Python package]
}}}
   * [wiki:EcomsUdg/Interfaces Other interfaces] to the ECOMS-UDG


[[Image(udg.png)]]

<ul>
<li> The [https://meteo.unican.es/trac/wiki/EcomsUdg/RPackage ECOMS data access] R and Matlab packages allow accessing seasonal forecast data using a single command (see an example here).
<li> The [https://github.com/santanderMetGroup/downscaleR downscaleR] package allows accessing observational and reanalysis datasets using a single command.
</ul> 

The group also supports a node of the <b>Earth System Grid Federation (ESGF)</b> which builds on the UDG-TDS and provides EURO-CORDEX simulations using the WRF model.
http://data.meteo.unican.es/

All these services build on the [http://meteo.unican.es/en/computing computing and storage infrastructure] of the group.

<p style="background-color: rgb(255, 204, 204); 
These tools are jointly developed with different communities and are in continuous development (support from SPECS and EUPORIAS projects is acknowledged). </p>