Re: XML Coordinates list (fwd)

• To: bit-bucket <bit-bucket@xxxxxxxxxxxxxxxx>
• Subject: Re: XML Coordinates list (fwd)
• From: Robb Kambic <rkambic@xxxxxxxxxxxxxxxx>
• Date: Thu, 21 Sep 2006 10:24:08 -0600 (MDT)

theres a few bugs in the documentation, but this should work to dump 
coordinates:

  java -classpath toolsUI.jar ucar.nc2.NCdump <filename> -ncml -c

use the toolsUI jar, since it has everything you need in it.

Ethan Davis wrote:
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

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 #