[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: XML Coordinates list

This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.


  • Subject: Re: XML Coordinates list
  • Date: Mon, 18 Sep 2006 16:35:35 -0600

Hi Stephen,

Stephen Sinnis wrote:
If I use the NcML tab in JAVA NetCDF (2.2) Tools and turn Coordinates ON, I
can get an XML dump describing the 80km CONUS NAM, (as described below).
Is there a command line equivalent of this?

The NcML web page (http://www.unidata.ucar.edu/software/netcdf/ncml/) describes a number of ways to dump the NcML for a dataset: 1) Tools UI, 2) using the netCDF-Java API, 3) netCDF-Java NcDump, and 4) netCDF C library ncdump, version 3.6.1 or later. I would guess that the Coordinates ON option is not supported by the last option. Also, not sure how to specify the Coordinates info in option 3.

How should I include this information for use in an enhanced catalog?

Do you mean how should it be encoded in an enhanced catalog? Or what is the best way to get this information into an enhanced catalog?

Also, is it the variable information you want to include in an enhanced catalog or the coordinate information?

Thanks,

Ethan
Stephen Sinnis
Pelmorex Media Inc

DETAILS:
  <variable name="x" shape="x" type="double">
    <attribute name="units" type="String" value="km" />
    <attribute name="long_name" type="String" value="synthesized X coord" />
    <attribute name="_CoordinateAxisType" type="String" value="GeoX" />
    <values start="-4226.106971141345" increment="81.27099999999973"
npts="93" />
  </variable>
  <variable name="y" shape="y" type="double">
    <attribute name="units" type="String" value="km" />
    <attribute name="long_name" type="String" value="synthesized Y coord" />
    <attribute name="_CoordinateAxisType" type="String" value="GeoY" />
    <values start="-832.6983183345455" increment="81.27099999999996"
npts="65" />
  </variable>
  <variable name="Projection" type="char">
    <attribute name="Projection_Name" type="String"
value="lambert_conformal_conic" />
    <attribute name="latitude_of_projection_origin" type="double"
value="25.0" />
    <attribute name="longitude_of_central_meridian" type="double"
value="-95.0" />
    <attribute name="standard_parallel" type="double" value="25.0" />
    <attribute name="_CoordinateTransformType" type="String"
value="Projection" />
    <attribute name="_CoordinateAxes" type="String" value="x y" />
    <values />
  </variable>

I have installed:

Linux 2.6.17-1.2157_FC5
TOMCAT 5.17 JDK1.5.0_07
THREDDS-3.12
toolsUI-2.2.16

I am feeding NOAAPORT HDS|NGRID data to GEMPAK 5.9.1 gribtonc:

#
# ETA grid on Lambert conformal CONUS grid
HDS     ^Y.Q... KWB. (..)(..).*/m(ETA|NAM)
        PIPE    decoders/gribtonc -l logs/gribtonc_nam.log
        etc/eta_211.cdl
data/pub/decoded/netcdf/grid/NCEP/NAM/CONUS_80km/NAM_CONUS_80km_(\1:yyyy)(\1
:mm)\1_\200.nc
#

===============================================================================
To unsubscribe thredds, visit:
http://www.unidata.ucar.edu/mailing-list-delete-form.html
===============================================================================

--
Ethan R. Davis                                Telephone: (303) 497-8155
Software Engineer                             Fax:       (303) 497-8690
UCAR Unidata Program Center                   E-mail:    address@hidden
P.O. Box 3000
Boulder, CO  80307-3000                       http://www.unidata.ucar.edu/
---------------------------------------------------------------------------


===============================================================================
To unsubscribe thredds, visit:
http://www.unidata.ucar.edu/mailing-list-delete-form.html
===============================================================================