[gradsusr] Error Message: gancgrid error
sudev das M P
devdas.pnr at gmail.com
Wed Dec 8 13:23:30 EST 2010
Respected Madam,
Thanks for your kind reply. I got the problem solved.
Now I can display the variable in the NetCDF file.
Thanking You,
Sincerely,
Sudev.
On Wed, Dec 8, 2010 at 11:22 PM, Jennifer Adams <jma at cola.iges.org> wrote:
> Thank you, Sudev, for the extra info. The problem is that GrADS doesn't
> understand the time axis metadata in the file ... note that it tells you
> "SDF file has no discernable time coordinate -- using default values."
> Default values do not match the actual time axis, so GrADS gets the shape
> wrong, thus the error message about the index exceeding the dimension bound.
> This was fixed in version 2.0.a7 -- in newer versions, sdfopen would not
> understand the time axis and would therefore not be able to look at any of
> the variables in the file since they all use the time axis. The message you
> would see in later versions is this:
> "SDF file has no discernable time coordinate -- using default values.
> gadsdf: SDF file does not have any non-coordinate variables."
> and the file would not be opened.
>
> What you need to do is use xdfopen, and provide the time axis metadata that
> GrADS requires in a descriptor file:
>
> dset ^FSU_flux_ndn_19782003v31a_rcf.nc
> tdef time 12 linear 1jan0001 1mo
>
> This will work in your version of GrADS. Note that GrADS doesn't really
> support climatological time axes in descriptor files, so you have to assign
> a year, in this case I used year 0001.
> --Jennifer
>
>
>
> On Dec 8, 2010, at 12:27 PM, sudev das M P wrote:
>
> Respected Madam,
>
> I am using GrADS Version 2.0.a6. My processor is 64 bit x86-64 quad-core.
>
> I am using Red Hat Enterprise Linux Server release 5.3 (Tikanga).
>
> I am not using descriptor file. I am opening the file using
>
> "sdfopen" comand.
> ***********************************************************************
> ga-> sdfopen FSU_flux_ndn_19782003v31a_rcf.nc
> Scanning self-describing file: FSU_flux_ndn_19782003v31a_rcf.nc
> SDF file has no discernable time coordinate -- using default values.
> SDF file FSU_flux_ndn_19782003v31a_rcf.nc is open as file 1
> LON set to 29.5 120.5
> LAT set to -29.5 29.5
> LEV set to 0 0
> Time values set: 1:1:1:0 1:1:1:0
> E set to 1 1
> ************************************************************************
>
> Out put from "ncdump -c"
> ******************************************************************
> ncdump -c FSU_flux_ndn_19782003v31a_rcf.nc
> netcdf FSU_flux_ndn_19782003v31a_rcf {
> dimensions:
> lon = 92 ;
> lat = 60 ;
> time = 12 ;
> variables:
> float lon(lon) ;
> lon:long_name = "Degrees Longitude" ;
> lon:units = "degrees_east" ;
> lon:valid_range = 0.f, 359.9f ;
> lon:actual_range = 29.5f, 120.5f ;
> float lat(lat) ;
> lat:long_name = "Degrees Latitude" ;
> lat:units = "degrees_north" ;
> lat:positive_dir = "positive northward" ;
> lat:valid_range = -90.f, 90.f ;
> lat:actual_range = -29.5f, 29.5f ;
> short time(time) ;
> time:long_name = "Climatological Month" ;
> time:units = "Calendar Month Number" ;
> time:actual_range = 1, 12 ;
> time:time_step = 1 ;
> int Wu(time, lat, lon) ;
> Wu:long_name = "Psuedostress Climatology (zonal (E-W)
> component) (Filtered)" ;
> Wu:positive_dir = "positive eastward" ;
> Wu:units = "m2/s2" ;
> Wu:scale_factor = 0.0001f ;
> Wu:missing_value = 32767 ;
> Wu:actual_range = -891510, 1236231 ;
> int Wv(time, lat, lon) ;
> Wv:long_name = "Psuedostress Climatology (meridional (N-S)
> component) (Filtered)" ;
> Wv:positive_dir = "positive northward" ;
> Wv:units = "m2/s2" ;
> Wv:scale_factor = 0.0001f ;
> Wv:missing_value = 32767 ;
> Wv:actual_range = -1030279, 1465481 ;
> int T_air(time, lat, lon) ;
> T_air:long_name = "10m Air Temperature Climatology
> (Filtered)" ;
> T_air:units = "Celsius" ;
> T_air:actual_range = 1492452, 3209452 ;
> T_air:scale_factor = 1.e-05f ;
> T_air:missing_value = 32767 ;
> int q_air(time, lat, lon) ;
> q_air:long_name = "10m Specific Humidity Climatology
> (Filtered)" ;
> q_air:units = "kg/kg" ;
> q_air:actual_range = 9471337, 25370482 ;
> q_air:scale_factor = 1.e-09f ;
> q_air:missing_value = 32767 ;
> int SST(time, lat, lon) ;
> SST:long_name = "Sea Surface Temperature Climatology
> (Filtered)" ;
> SST:units = "Celsius" ;
> SST:actual_range = 1439837, 3321173 ;
> SST:scale_factor = 1.e-05f ;
> SST:missing_value = 32767 ;
> int spd(time, lat, lon) ;
> spd:long_name = "10m Scalar Averaged Wind Speed Climatology
> (Filtered)" ;
> spd:units = "m/s" ;
> spd:actual_range = 326308, 1376039 ;
> spd:scale_factor = 1.e-05f ;
> spd:missing_value = 32767 ;
> int TAU_u(time, lat, lon) ;
> TAU_u:long_name = "Zonal Stress Climatology (Filtered)" ;
> TAU_u:units = "N/meter^2" ;
> TAU_u:positive_dir = "positive eastward" ;
> TAU_u:actual_range = -1516837, 2172231 ;
> TAU_u:scale_factor = 1.e-07f ;
> TAU_u:missing_value = 32767 ;
> int TAU_v(time, lat, lon) ;
> TAU_v:long_name = "Meridional Stress Climatology
> (Filtered)" ;
> TAU_v:units = "N/meter^2" ;
> TAU_v:positive_dir = "positive northward" ;
> TAU_v:actual_range = -1733125, 2601654 ;
> TAU_v:scale_factor = 1.e-07f ;
> TAU_v:missing_value = 32767 ;
> int LHF(time, lat, lon) ;
> LHF:long_name = "Latent Heat Flux Climatology (Filtered)" ;
> LHF:units = "watt/meter^2" ;
> LHF:positive_dir = "positive upward" ;
> LHF:actual_range = -408654, 2105644 ;
> LHF:scale_factor = 0.0001f ;
> LHF:missing_value = 32767 ;
> int SHF(time, lat, lon) ;
> SHF:long_name = "Sensible Heat Flux Climatology (Filtered)"
> ;
> SHF:units = "watt/meter^2" ;
> SHF:positive_dir = "positive upward" ;
> SHF:actual_range = -269923, 751183 ;
> SHF:scale_factor = 0.0001f ;
> SHF:missing_value = 32767 ;
>
> // global attributes:
> :title = "FSU Objectively Gridded Indian Monthly Flux
> Climatology (Filtered)" ;
> :source = "COAPS at Florida State University" ;
> :base_time = "December" ;
> :history = "Created on Thu Sep 6 14:38:22 EDT 2007 by
> COAPS/FSU" ;
> :grid_space = "1 degree" ;
> :version = "3.1" ;
> :version_title = "Objective Research Quality" ;
> :base_data_sets = "COADS LMRF6v2.1 (12/1977-1997), COADS
> LMRF6v2.2 (1998-2004), TAO Buoys (1980-2004)" ;
> :sst_data_sets = "OI (1978-11/1981), OI.v2
> (12/1981-present)" ;
> :conventions = "COARDS" ;
> :contact_info = "winds at coaps.fsu.edu" ;
> :contact_url = "
> http://www.coaps.fsu.edu/RVSMDC/FSUFluxes/index.php" ;
> :reference = "Bourassa, M.A., S.R. Romero, S.R. Smith, and
> J.J. O\'Brien, 2005: A New FSU winds climatology. J. Climate, 18,
> 3692-3704." ;
> :sst_reference = "Data described in Reynolds, R.W., N.A.
> Rayner, T.M. Smith, D.C. Stokes, and W. Wang, 2002: An Improved In Situ and
> Satellite SST Analysis for Climate, J. Climate." ;
> data:
>
> lon = 29.5, 30.5, 31.5, 32.5, 33.5, 34.5, 35.5, 36.5, 37.5, 38.5, 39.5,
> 40.5, 41.5, 42.5, 43.5, 44.5, 45.5, 46.5, 47.5, 48.5, 49.5, 50.5, 51.5,
>
> 52.5, 53.5, 54.5, 55.5, 56.5, 57.5, 58.5, 59.5, 60.5, 61.5, 62.5, 63.5,
>
> 64.5, 65.5, 66.5, 67.5, 68.5, 69.5, 70.5, 71.5, 72.5, 73.5, 74.5, 75.5,
>
> 76.5, 77.5, 78.5, 79.5, 80.5, 81.5, 82.5, 83.5, 84.5, 85.5, 86.5, 87.5,
>
> 88.5, 89.5, 90.5, 91.5, 92.5, 93.5, 94.5, 95.5, 96.5, 97.5, 98.5, 99.5,
>
> 100.5, 101.5, 102.5, 103.5, 104.5, 105.5, 106.5, 107.5, 108.5, 109.5,
> 110.5, 111.5, 112.5, 113.5, 114.5, 115.5, 116.5, 117.5, 118.5, 119.5,
> 120.5 ;
>
> lat = -29.5, -28.5, -27.5, -26.5, -25.5, -24.5, -23.5, -22.5, -21.5,
> -20.5,
> -19.5, -18.5, -17.5, -16.5, -15.5, -14.5, -13.5, -12.5, -11.5, -10.5,
> -9.5, -8.5, -7.5, -6.5, -5.5, -4.5, -3.5, -2.5, -1.5, -0.5, 0.5, 1.5,
> 2.5, 3.5, 4.5, 5.5, 6.5, 7.5, 8.5, 9.5, 10.5, 11.5, 12.5, 13.5, 14.5,
> 15.5, 16.5, 17.5, 18.5, 19.5, 20.5, 21.5, 22.5, 23.5, 24.5, 25.5, 26.5,
>
> 27.5, 28.5, 29.5 ;
>
> time = 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 ;
> }
>
> ************************************************************************************
>
> Thanks,
> Sincerely,
> Sudev.
>
> On Wed, Dec 8, 2010 at 7:27 PM, Jennifer Adams <jma at cola.iges.org> wrote:
>
>> Sudev,
>> Please supply the version of GrADS you are running, specifics about the
>> platform you are running GrADS on, the output from running "ncdump -c" on
>> your NetCDF file, and your descriptor file (if you are using 'open' or
>> 'xdfopen').
>> --Jennifer
>>
>>
>>
>> On Dec 8, 2010, at 2:20 AM, sudev das M P wrote:
>>
>> Hai All,
>>
>> I have a monthly flux climatology data in NetCDF format.
>>
>> I have taken the data from the following link:
>>
>> http://www.coaps.fsu.edu/RVSMDC/FSUFluxes/research.php
>>
>> While trying to display the variable I am getting the following
>>
>> error. Please somebody tell me how to solve this.
>>
>> Thanks,
>> Sincerely,
>> sudev.
>>
>> ************************************************
>> ga-> q file
>> File 1 : FSU Objectively Gridded Indian Monthly Flux Climatology
>> (Filtered)
>> Descriptor: FSU_flux_ndn_19782003v31a_rcf.nc
>> Binary: FSU_flux_ndn_19782003v31a_rcf.nc
>> Type = Gridded
>> Xsize = 92 Ysize = 60 Zsize = 1 Tsize = 1 Esize = 1
>> Number of Variables = 10
>> wu 0 y,x Psuedostress Climatology (zonal (E-W) component)
>> (Filtered)
>> wv 0 y,x Psuedostress Climatology (meridional (N-S) component)
>> (Filtered)
>> t_air 0 y,x 10m Air Temperature Climatology (Filtered)
>> q_air 0 y,x 10m Specific Humidity Climatology (Filtered)
>> sst 0 y,x Sea Surface Temperature Climatology (Filtered)
>> spd 0 y,x 10m Scalar Averaged Wind Speed Climatology (Filtered)
>> tau_u 0 y,x Zonal Stress Climatology (Filtered)
>> tau_v 0 y,x Meridional Stress Climatology (Filtered)
>> lhf 0 y,x Latent Heat Flux Climatology (Filtered)
>> shf 0 y,x Sensible Heat Flux Climatology (Filtered)
>> ga-> d sst
>> gancgrid error: nc_get_vara_double failed; NetCDF: Index exceeds dimension
>> bound
>> Data Request Error: Error for variable 'sst'
>> Error ocurred at column 1
>> DISPLAY error: Invalid expression
>> Expression = sst
>> *******************************************************************
>>
>>
>> _______________________________________________
>> gradsusr mailing list
>> gradsusr at gradsusr.org
>> http://gradsusr.org/mailman/listinfo/gradsusr
>>
>>
>> --
>> Jennifer M. Adams
>> IGES/COLA
>> 4041 Powder Mill Road, Suite 302
>> Calverton, MD 20705
>> jma at cola.iges.org
>>
>>
>>
>>
>> _______________________________________________
>> gradsusr mailing list
>> gradsusr at gradsusr.org
>> http://gradsusr.org/mailman/listinfo/gradsusr
>>
>>
> _______________________________________________
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>
>
> --
> Jennifer M. Adams
> IGES/COLA
> 4041 Powder Mill Road, Suite 302
> Calverton, MD 20705
> jma at cola.iges.org
>
>
>
>
> _______________________________________________
> gradsusr mailing list
> gradsusr at gradsusr.org
> http://gradsusr.org/mailman/listinfo/gradsusr
>
>
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