Upgrading To TDS 4.3

New Features

• FeatureCollection type=GRIB 
• Non-Julian Calendars are supported
• CF 1.6 discrete sampling (aka point observations) supported
• Netcdf-4 files can be written if netCDF4 C library is installed (alpha testing).
• NetCDF Subset Service improved
• GRIB-1 and GRIB-2 complete rewrite 
• Latest tables from WMO: BUFR, GRIB2, Common Codes 

TDS 4.3 Dataset Access Changes

• Upgrades to the way GRIB variables are named, as well as changes to the main Unidata TDS access URLs, will require modifications to software designed to access data from a TDS. This includes various scripts used to interface with the TDS hosted at Unidata and elsewhere (running TDS 4.3).

Release Engineering

• source is now on github, build with maven
• module refactor (grib, opendap, visad, common)
• Upgrade to Spring 3, Protobuf 2.4, latest NcWMS 
• Refactor OPeNDAP, HTTP library  

Configuration Changes

• The datasetFmrc element should be migrated to a featureCollection type=FMRC.
• Stop using NCML or FMRC aggregations on GRIB files. Only featureCollection type=GRIB should be used. Details.
• If you are loading GRIB tables at runtime, you must make some changes.
• If WMS is enabled, update the wmsConfig.xml file:
  • The document type definition is now external and points to: http://www.unidata.ucar.edu/schemas/thredds/dtd/ncwms/wmsConfig.dtd
    So, the internal document type declaration has to be changed from:

    <!DOCTYPE wmsConfig [
    
    <!ELEMENT wmsConfig (global, overrides?)>
    
    <!ELEMENT global (defaults, standardNames?)>
    
    <!ELEMENT defaults (allowFeatureInfo, defaultColorScaleRange, defaultPaletteName, defaultNumColorBands, logScaling)>
    
    <!ELEMENT standardNames (standardName*)>
    
    <!ELEMENT standardName (defaultColorScaleRange?, defaultPaletteName?, defaultNumColorBands?, logScaling?)>
    <!ATTLIST standardName name CDATA #REQUIRED>
    <!ATTLIST standardName units CDATA #REQUIRED>
    
    <!ELEMENT overrides (datasetPath*)>
    
    <!ELEMENT datasetPath (pathDefaults?, variables?)>
    <!ATTLIST datasetPath pathSpec CDATA #REQUIRED>
    
    <!ELEMENT pathDefaults (allowFeatureInfo?, defaultColorScaleRange?, defaultPaletteName?, defaultNumColorBands?, logScaling?)>
    
    <!ELEMENT variables (variable*)>
    
    <!ELEMENT variable (defaultColorScaleRange?, defaultPaletteName?, defaultNumColorBands?, logScaling?)>
    <!ATTLIST variable id CDATA #REQUIRED>
    
    <!ELEMENT allowFeatureInfo (#PCDATA)>
    <!ELEMENT defaultColorScaleRange (#PCDATA)>
    <!ELEMENT defaultPaletteName (#PCDATA)>
    <!ELEMENT defaultNumColorBands (#PCDATA)>
    <!ELEMENT logScaling (#PCDATA)>
    ]>  
      

    to:

      <!DOCTYPE wmsConfig SYSTEM "http://www.unidata.ucar.edu/schemas/thredds/dtd/ncwms/wmsConfig.dtd">  
      

  • WMS supports interval times in the capabilities documents and for setting up this feature that a new configuration tag has to be added into the defaults section:
    

      	
        <defaults>
        	<!-- The global defaults. All elements are mandatory -->
            <allowFeatureInfo>true</allowFeatureInfo>
            <defaultColorScaleRange>-50 50</defaultColorScaleRange>
            <defaultPaletteName>rainbow</defaultPaletteName>
            <defaultNumColorBands>20</defaultNumColorBands>
            <logScaling>false</logScaling>
            <intervalTime>false</intervalTime>
        </defaults>
      	

  • A valid wmsConfig.xml is available for reference in the ${tomcat.home}/webapps/thredds/WEB-INF/altContent/startup directory

This document is maintained by Unidata and was last updated Dec 2012. Send comments to THREDDS support.