[netcdfgroup] Tool to extract a group from a netcdf4 file

• To: "netcdfgroup@xxxxxxxxxxxxxxxx (netcdfgroup@xxxxxxxxxxxxxxxx)" <netcdfgroup@xxxxxxxxxxxxxxxx>
• Subject: [netcdfgroup] Tool to extract a group from a netcdf4 file
• From: Roy Mendelssohn <Roy.Mendelssohn@xxxxxxxx>
• Date: Fri, 22 Jul 2011 10:51:27 -0700

Hi All:

Is there a convenient tool to extract the full group from a netcdf4 file and 
copy it to a new netcdf file that doesn't have groups?  To make it clearer 
below is an example header.  Say I want to create a file that only contains the 
Hindcast group?

Thanks

-Roy


netcdf \20110721T170000 {

group: Hindcast {
  dimensions:
        Time = 10725 ;
        Dist = 51 ;
        Stat = 5 ;
  variables:
        uint Time(Time) ;
                Time:Description = "Time Since 1-Apr-2011 (s)" ;
        ubyte Dist(Dist) ;
                Dist:Description = "Distance Downstream (km)" ;
        ubyte Stat(Stat) ;
                Stat:Description = "Station Number (1=KWK, 2=BSF, 3=JLF, 4=BND, 
5=RDB)" ;
        ushort GridTemp(Dist, Time) ;
                GridTemp:Description = "Gridded Temperature (deg F x 100)" ;
        ushort StatTemp(Stat, Time) ;
                StatTemp:Description = "Station Temperature (deg F x 100)" ;
  } // group Hindcast

group: Forecast {
  dimensions:
        Time = 289 ;
        Dist = 51 ;
        Stat = 5 ;
  variables:
        uint Time(Time) ;
                Time:Description = "Time Since 1-Apr-2011 (s)" ;
        ubyte Dist(Dist) ;
                Dist:Description = "Distance Downstream (km)" ;
        ubyte Stat(Stat) ;
                Stat:Description = "Station Number (1=KWK, 2=BSF, 3=JLF, 4=BND, 
5=RDB)" ;
        ushort GridTemp(Dist, Time) ;
                GridTemp:Description = "Gridded Temperature (deg F x 100)" ;
        ushort StatTemp(Stat, Time) ;
                StatTemp:Description = "Station Temperature (deg F x 100)" ;
  } // group Forecast

group: Scenario {
  dimensions:
        Time = 289 ;
        Dist = 51 ;
        Stat = 5 ;
        InitTemp = 9 ;
        InitFlow = 11 ;
  variables:
        uint Time(Time) ;
                Time:Description = "Time Since 1-Apr-2011 (s)" ;
        ubyte Dist(Dist) ;
                Dist:Description = "Distance Downstream (km)" ;
        ubyte Stat(Stat) ;
                Stat:Description = "Station Number (1=KWK, 2=BSF, 3=JLF, 4=BND, 
5=RDB)" ;
        ushort InitTemp(InitTemp) ;
                InitTemp:Description = "Initial Temperature (deg F x 100)" ;
        ushort InitFlow(InitFlow) ;
                InitFlow:Description = "Initial Flow (cfs)" ;
        ushort GridTemp(InitFlow, InitTemp, Dist, Time) ;
                GridTemp:Description = "Gridded Temperature (deg F x 100)" ;
        ushort StatTemp(InitFlow, InitTemp, Stat, Time) ;
                StatTemp:Description = "Station Temperature (deg F x 100)" ;
  } // group Scenario
}

**********************
"The contents of this message do not reflect any position of the U.S. 
Government or NOAA."
**********************
Roy Mendelssohn
Supervisory Operations Research Analyst
NOAA/NMFS
Environmental Research Division
Southwest Fisheries Science Center
1352 Lighthouse Avenue
Pacific Grove, CA 93950-2097

e-mail: Roy.Mendelssohn@xxxxxxxx (Note new e-mail address)
voice: (831)-648-9029
fax: (831)-648-8440
www: http://www.pfeg.noaa.gov/

"Old age and treachery will overcome youth and skill."
"From those who have been given much, much will be expected"