Re: [thredds] Wind Vectors with TDS 5.0.0 ?

• To: thredds@xxxxxxxxxxxxxxxx
• Subject: Re: [thredds] Wind Vectors with TDS 5.0.0 ?
• From: Jason Greenlaw - NOAA Affiliate <jason.greenlaw@xxxxxxxx>
• Date: Tue, 28 Feb 2017 11:15:51 -0500

A couple more pieces of information about this...

1) The GFS u/v wind component variables do appear to use the proper naming
conventions (per ncWMS2 documentation
<https://reading-escience-centre.gitbooks.io/ncwms-user-guide/content/05-data_formats.html#vector>
)

2) Using similar model output but in NetCDF format (instead of GRIB2) and
specifying featureType="FMRC", the wind vectors work fine.




On Mon, Feb 27, 2017 at 11:08 PM, Jason Greenlaw - NOAA Affiliate <
jason.greenlaw@xxxxxxxx> wrote:

> Hello all,
>
> I'm trying to replicate in TDS 5.0.0 some functionality I had working with
> TDS 4.6 -- producing a collection/aggregation of NCEP GFS model output
> (GRIB2 format) and exposing it via WMS.
>
> I've been able to successfully generate the "Full Collection Dataset"
> resource and it's working great (see config snippet below), but with one
> exception:  the u & v components of wind are not being combined into a
> unified "wind" variable, i.e., a single WMS layer that will allow the u/v
> wind field to be rendered with ncWMS using barb/vector styles.
>
> This functionality was working in TDS 4.6 without any additional
> configuration, but does not seem to be working the same with TDS 5.0.
>
> Are there specific settings I should be using in catalog.xml to tell TDS
> 5.0 that the "u/v component of wind" variables represent a vector field?
>
> FYI, I'm using the TDS 5.0.0 snapshot from 2017-02-21T21:22:48.
>
> Thanks,
> Jason
>
>
>
> from catalog.xml:
> ------------------------------------------------------------
> -------------------
>  <service name="all" base="" serviceType="compound">
>     <service name="odap" serviceType="OpenDAP" base="/thredds/dodsC/" />
>     <service name="dap4" serviceType="DAP4" base="/thredds/dap4/" />
>     <service name="http" serviceType="HTTPServer"
> base="/thredds/fileServer/" />
>     <service name="wcs" serviceType="WCS" base="/thredds/wcs/" />
>     <service name="wms" serviceType="WMS" base="/thredds/wms/" />
>     <service name="ncss" serviceType="NetcdfSubset" base="/thredds/ncss/"
> />
>   </service>
>
>  <featureCollection name="NCEP GFS 2.5 Degree" featureType="GRIB2"
> path="gfs2p5">
>     <metadata inherited="true">
>       <serviceName>all</serviceName>
>       <documentation type="summary">NCEP GFS 2.5 degree</documentation>
>     </metadata>
>     <collection spec="content/gfs/.*grib2$"
>                 name="GFS_2P5"
>                 timePartition="file"
>                 olderThan="5 min" />
>     <update startup="nocheck" />
>     <tdm rewrite="test" rescan="0 0/15 * * * ? *" />
>   </featureCollection>
> ------------------------------------------------------------
> -------------------
>
>

• Follow-Ups:
  • Re: [thredds] Wind Vectors with TDS 5.0.0 ?
    • From: Sean Arms

• References:
  • [thredds] Wind Vectors with TDS 5.0.0 ?
    • From: Jason Greenlaw - NOAA Affiliate