[ncl-talk] Problem reading hdf5 file

[Charles Bardeen]

Hi Dennis,

I am running it on my desktop (Mac), but have copied a file to Yellowstone. You can see an example at:

/glade/scratch/bardeenc/gps031001g.002.hdf5

Thanks,

Chuck

> On Jan 23, 2017, at 1:20 PM, Dennis Shea <shea at ucar.edu> wrote:
> 
> Likely, ncl-6.4.0 will read the file.
> I went to site and it want us to register. Just don't wan to do that.
> 
> 
> Are you on a CISL (eg: yellowstone) box? Where?
> 
> 
> If not, make the data available via WWW or ftp to:
> 
> ftp ftp.cgd.ucar.edu <http://ftp.cgd.ucar.edu/>
> anonymous
> your_email
> cd incoming
> put your_file
> quit
> 
> THX
> 
> On Mon, Jan 23, 2017 at 12:32 PM, Charles Bardeen <bardeenc at ucar.edu <mailto:bardeenc at ucar.edu>> wrote:
> I am trying to read hdf5 data produced from the Madrigal archive ( http://cedar.openmadrigal.org <http://cedar.openmadrigal.org/> ). The file format contains groups and compounds. I seem to be able to access the group, but have been unable to access the data that I want from the compound. Can you tell how to make this work? The file format and the commands I have tried are shown below.
> 
> Thanks,
> 
> Chuck
> 
> --------------------------------------------------------------
> Charles Bardeen
> National Center for Atmospheric Research
> P.O. Box 3000, Boulder, CO 80307-3000
> Phone: (303) 497-1752 <tel:(303)%20497-1752>,  Fax: (303) 497-1400 <tel:(303)%20497-1400>
> bardeenc at ucar.edu <mailto:bardeenc at ucar.edu>
> 
> 
>  Copyright (C) 1995-2015 - All Rights Reserved
>  University Corporation for Atmospheric Research
>  NCAR Command Language Version 6.3.0
>  The use of this software is governed by a License Agreement.
>  See http://www.ncl.ucar.edu/ <http://www.ncl.ucar.edu/> for more details.
> ncl 0> x = addfile("gps031001g.002.hdf5", "r")
> ncl 1> print(x)
> 
> Variable: x
> Type: file
> filename:       gps031001g.002
> path:   gps031001g.002.hdf5
>    file global attributes:
>    dimensions:
>       DIM_000 = 10
>       DIM_001 = 0
>       DIM_002 = 0
>       DIM_003 = 0
>    variables:
>       group </Data>
> 
> 
>       compound <Table_Layout>   (year, month, day, hour, min, sec, ut1_unix, ut2_unix, recno, gdlat, glon, tec, dtec) (DIM_000)
> 
>       group </Metadata>
> 
> 
>       compound <Data_Parameters>        (mnemonic, description, isError, units, category) (DIM_000)
> 
>       compound <Experiment_Notes>       (File Notes) (DIM_000)
> 
>       compound <Experiment_Parameters>  (name, value) (DIM_000)
> 
> ncl 5> g = x=>Data
> ncl 6> print(g)
> 
> Variable: g
> Type: file
> filename:       gps031001g.002
> path:   gps031001g.002.hdf5
>    file global attributes:
>    dimensions:
>       DIM_000 = 10
>       DIM_001 = 0
>       DIM_002 = 0
>       DIM_003 = 0
>    variables:
>       compound <Table_Layout>   (year, month, day, hour, min, sec, ut1_unix, ut2_unix, recno, gdlat, glon, tec, dtec) (DIM_000)
> 
> ncl 7> tec = g->/Table_Layout.tec
> fatal:["Execute.c":6332]:variable (/Table_Layout.tec) is not in file (g)
> fatal:["Execute.c":8573]:Execute: Error occurred at or near line 7
> 
> ncl 9> tec = x->/Data/Table_Layout.tec
> fatal:["Execute.c":6332]:variable (/Data/Table_Layout.tec) is not in file (x)
> fatal:["Execute.c":8573]:Execute: Error occurred at or near line 9
> 
> 
> 
> 
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> 

--------------------------------------------------------------
Charles Bardeen
National Center for Atmospheric Research
P.O. Box 3000, Boulder, CO 80307-3000
Phone: (303) 497-1752,  Fax: (303) 497-1400
bardeenc at ucar.edu

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