THREDDS and Metadata

Metadata Tour on Several TDS Sites

• NOAA NCDC NOMADS - http://nomads.ncdc.noaa.gov/thredds/catalog.xml
• NARR - 2008-10-28
• NOAA Pacific Fisheries Environmtne LabL - http://oceanwatch.pfeg.noaa.gov/thredds/catalog.xml
• PaCOOS/CalCOFI
• USGS Woods Hole Science Center - http://coast-enviro.er.usgs.gov/thredds/catalog.xml
• Adriatic Sea Project 
• Bathymetry
• Unidata IDD Real-time Archive - http://motherlode.ucar.edu:8080/thredds/catalog.xml
• NCEP GFS CONUS 191km

THREDDS Metadata

• THREDDS Metadata example
• THREDDS Catalog specification - Metadata Section

Exercise: Add Metadata to NAM, FSL, MODIS, or Suomi data

1. Edit the main TDS configuration catalog as desired:

   -bash-3.2$ cd ${tomcat_home}/content/thredds
   -bash-3.2$ vi catalog.xml                     // Use the editor of your choice

2. Add metadata to one or more of the datasetScan elements. Perhaps some items similar to the following:

   <metadata xlink:title="some XML metadata"
             xlink:href="http://motherlode.ucar.edu:8080/thredds/catalog.xml" />
   <documentation xlink:title="some html info" xlink:href="http://motherlode.ucar.edu:8080/thredds/catalog.html" />
   <keyword>good stuff</keyword>
   <publisher><name>you</name></publisher>
   <variables>
       <variable name="Z" units="gp m">Geopotential Height</variable>
   </variables>

3. Restart Tomcat so the TDS is reinitialized:

   -bash-3.2$ cd ${tomcat_home}/bin
   -bash-3.2$ ./shutdown.sh
   -bash-3.2$ ./startup.sh
   

4. Check the catalogInit.log - http://localhost:8080/thredds/admin/debug
5. Check the list of dataset roots - http://localhost:8080/thredds/admin/debug
6. Browse the catalogs to see how the metadata looks - http://localhost:8080/thredds/catalog.html

This document is maintained by Unidata staff. Please send comments to THREDDS support.