The THREDDS Data Server (TDS) is a web server that provides metadata and data access for scientific datasets, using OPeNDAP, OGC WMS and WCS, HTTP, and other remote data access protocols. The TDS is developed and supported by Unidata, a division of the University Corporation for Atmospheric Research (UCAR), and is sponsored by the National Science Foundation.
Some of the technology in the TDS:
The THREDDS Data Server is implemented in 100% Java, and is contained in a single war file, which allows very easy installation into a servlet container such as the open-source Tomcat web server. Configuration is made as simple and as automatic as possible, and we have made the server as secure as possible. The library is freely available and the source code is released under the (MIT-style) netCDF library license.
Much of the realtime data available over the Unidata Internet Data Distribution (IDD) is available through a THREDDS Data Server hosted at Unidata on motherlode.ucar.edu. You are welcome to browse and access these meteorological datasets. If you need regular access to large amounts of data, please contact email@example.com.
TDS 4.3 is the current stable release.
TDS version 4.2 is the previous stable release.
NOTE: If you are upgrading from a version of TDS before
4.2.20100615.* be sure
to read about the new
wmsConfig.xml file in our "Updating to TDS 4.2" document
(see the "Additional WMS Configuration File"
Standard TDS Services
- OPeNDAP (DAP2) protocol
- ncWMS implementing the Web Map Service
- Web Coverage Service
- Netcdf Subset Service (4.2) (4.3)
Experimental TDS Services
Show Remote Catalog as HTML
The Common Data Model (CDM) coordinate system validator is no longer part of the TDS distribution. Instead it comes as a separate distribution.