problem with opening multiple NetCDF files

M.Mahakur mmahakur at TROPMET.RES.IN
Mon Jun 9 11:47:48 EDT 2008


what happens if you change "dset" to %m2 instead of %2m in your data.ctl??

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---------- Original Message -----------
From: Pavel Kishcha <pavel at CYCLONE.TAU.AC.IL>
To: GRADSUSR at LIST.CINECA.IT
Sent: Mon, 9 Jun 2008 17:27:56 +0200
Subject: problem with opening multiple NetCDF files

> Dear All,
>
> The problem comes about when I am trying to open multiple NetCDF files in
> GRADS.
> Here is my descriptor file  (data.ctl):
>
> dset ^%y4-%2m.nc
> options template
> XDEF 360 linear -179.500000 1.00000
> YDEF 181  linear -89.5000000 1.000000
> ZDEF 1 levels 1000
> TDEF 24 linear 01apr2000  1mo
> vars 8
> aot       1 t,y,x
> aot_land  1 t,y,x
> aot_water 1 t,y,x
> aot_dust  1 t,y,x
> angst     1 t,y,x
> small     1 t,y,x
> medium    1 t,y,x
> large     1 t,y,x
> endvars
>
> ***When I run it in GrADS Version 1.9b4 by using the command xdfopen I see
> the message:
>
> ga-> xdfopen data.ctl
> Scanning Descriptor File:  data.ctl
> XDFopen Error:  Missing or invalid dimension size.
>   --> The invalid description file record is:
>   --> xdef 360 linear -179.500000 1.00000
>   The data file was not opened.
>
> ***When I run it by using the command open I see the message:
>
> ga-> open data.ctl
> Scanning description file:  MISR_L3.ctl
> Open Error:  Invalid variable record
>   --> The invalid description file record is:
>   --> aot       1 t,y,x
>
> What am I doing wrong?
> Thank you for all of your help.
>
> Cheers,
> Pavel
>
> P.S. Here are my files:
>
> 2000-04.nc
> 2000-05.nc
> 2000-06.nc
> 

> 2002-03.nc
>
> ***Here is the output from "ncdump -h" of 2000-04.nc
>
> [pavel at wind ~]$ /usr/local/bin/ncdump -h 2000-04.nc
> netcdf 2000-04 {
> dimensions:
>         longitude = 360 ;
>         latitude = 181 ;
>         ftime = 1 ;
> variables:
>         double longitude(longitude) ;
>                 longitude:units = "degree_east" ;
>                 longitude:standard_name = "longitude" ;
>         double latitude(latitude) ;
>                 latitude:units = "degree_north" ;
>                 latitude:standard_name = "latitude" ;
>         double ftime(ftime) ;
>                 ftime:units = "seconds since ??" ;
>                 ftime:standard_name = "ftime" ;
>         double aot(ftime, latitude, longitude) ;
>                 aot:units = "kg m-2" ;
>                 aot:standard_name = "total_aerosol_optical_thickness" ;
>                 aot:coordinates = "ftime latitude longitude" ;
>         double aot_land(ftime, latitude, longitude) ;
>                 aot_land:units = "kg m-2" ;
>                 aot_land:standard_name
> = "total_aerosol_optical_thickness" ;
>                 aot_land:coordinates = "ftime latitude longitude" ;
>         double aot_water(ftime, latitude, longitude) ;
>                 aot_water:units = "kg m-2" ;
>                 aot_water:standard_name
> = "total_aerosol_optical_thickness" ;
>                 aot_water:coordinates = "ftime latitude longitude" ;
>         double aot_dust(ftime, latitude, longitude) ;
>                 aot_dust:units = "kg m-2" ;
>                 aot_dust:standard_name
> = "atmosphere_content_of_dust_aerosol" ;
>                 aot_dust:coordinates = "ftime latitude longitude" ;
>         double angst(ftime, latitude, longitude) ;
>                 angst:units = "None" ;
>                 angst:standard_name = "angstrom_exponent" ;
>                 angst:coordinates = "ftime latitude longitude" ;
>         double small(ftime, latitude, longitude) ;
>                 small:units = "kg m-2" ;
>                 small:standard_name
> = "aerosol_optical_thickness_due_to_small_particles" ;
>                 small:coordinates = "ftime latitude longitude" ;
>         double medium(ftime, latitude, longitude) ;
>                 medium:units = "kg m-2" ;
>                 medium:standard_name
> = "aerosol_optical_thickness_due_to_medium_particles" ;
>                 medium:coordinates = "ftime latitude longitude" ;
>         double large(ftime, latitude, longitude) ;
>                 large:units = "kg m-2" ;
>                 large:standard_name
> = "aerosol_optical_thickness_due_to_large_particles" ;
>                 large:coordinates = "ftime latitude longitude" ;
>
> // global attributes:
>                 :Conventions = "CF-1.0" ;
>                 :history = "Created Mon May  5 15:55:49 2008 by mikeb" ;
>                 :comment = "??" ;
>                 :source = "IMPACT model v??" ;
>                 :references = "??" ;
>                 :institution = "Los Alamos" ;
>                 :title = "AOT global grid for total, dust, angst, small,
> medium, large" ;
> }
------- End of Original Message -------



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