[gradsusr] XDEF for CMIP5 data
syairah atiqah atiq
syairahatiqah at yahoo.com
Wed Feb 22 21:49:39 EST 2017
Dear experts,
Kindly help your help. I'm downloaded a data of sea ice from CMIP5, sic_OImon_ACCESS1-0_historical_r1i1p1_185001-200512.nc. To open it,I do the control file as below but it still can't be open
dset ^E:\CMIP5\ACCESS1-0\sic_OImon_ACCESS1-0_historical_r1i1p1_185001-200512.ncoptions 365_day_calendarTDEF time 1872 LINEAR 0Z1jan1850 1mon
In grads:
ga-> xdfopen E:\CMIP5\ACCESS1-0\sic_OImon_ACCESS1-0_historical_r1i1p1_185001-200512.ctlScanning Descriptor File: E:\CMIP5\ACCESS1-0\sic_OImon_ACCESS1-0_historical_r1i1p1_185001-200512.ctlgadsdf: SDF file has no discernable X coordinate. To open this file with GrADS, use a descriptor file with an XDEF entry. Documentation is at http://iges.org/grads/gadoc/SDFdescriptorfile.htmlSDF Descriptor file E:\CMIP5\ACCESS1-0\sic_OImon_ACCESS1-0_historical_r1i1p1_185001-200512.ctl was not successfully opened & parsed.
Here the details of the data:
E:\CMIP5\ACCESS1-0>ncdump -h sic_OImon_ACCESS1-0_historical_r1i1p1_185001-200512.ncnetcdf sic_OImon_ACCESS1-0_historical_r1i1p1_185001-200512 {dimensions: time = UNLIMITED ; // (1872 currently) j = 300 ; i = 360 ; bnds = 2 ; vertices = 4 ;variables: double time(time) ; time:bounds = "time_bnds" ; time:units = "days since 0001-01-01" ; time:calendar = "proleptic_gregorian" ; time:axis = "T" ; time:long_name = "time" ; time:standard_name = "time" ; double time_bnds(time, bnds) ; int j(j) ; j:units = "1" ; j:long_name = "cell index along second dimension" ; int i(i) ; i:units = "1" ; i:long_name = "cell index along first dimension" ; float lat(j, i) ; lat:standard_name = "latitude" ; lat:long_name = "latitude coordinate" ; lat:units = "degrees_north" ; lat:bounds = "lat_vertices" ; float lon(j, i) ; lon:standard_name = "longitude" ; lon:long_name = "longitude coordinate" ; lon:units = "degrees_east" ; lon:bounds = "lon_vertices" ; float lat_vertices(j, i, vertices) ; lat_vertices:units = "degrees_north" ; float lon_vertices(j, i, vertices) ; lon_vertices:units = "degrees_east" ; float sic(time, j, i) ; sic:standard_name = "sea_ice_area_fraction" ; sic:long_name = "Sea Ice Area Fraction" ; sic:comment = "fraction of grid cell covered by sea ice." ; sic:units = "%" ; sic:original_units = "1" ; sic:history = "2012-01-17T03:16:49Z altered by CMOR: Converted units from \'1\' to \'%\'. 2012-01-17T03:16:49Z altered by CMOR: replaced missing value flag (1e+30) with standard missing value (1e+20)." ; sic:cell_methods = "time: mean" ; sic:cell_measures = "area: areacello" ; sic:missing_value = 1.e+020f ; sic:_FillValue = 1.e+020f ; sic:associated_files = "baseURL: http://cmip-pcmdi.llnl.gov/CMIP5/dataLocation gridspecFile: gridspec_seaIce_fx_ACCESS1-0_historical_r0i0p0.nc areacello: areacello_fx_ACCESS1-0_historical_r0i0p0.nc" ; sic:coordinates = "lat lon" ;
// global attributes: :institution = "CSIRO (Commonwealth Scientific and Industrial Research Organisation, Australia), and BOM (Bureau of Meteorology, Australia)" ; :institute_id = "CSIRO-BOM" ; :experiment_id = "historical" ; :source = "ACCESS1-0 2011. Atmosphere: AGCM v1.0 (N96 grid-point, 1.875 degrees EW x approx 1.25 degree NS, 38 levels); ocean: NOAA/GFDL MOM4p1 (nominal 1.0 degree EW x 1.0 degrees NS, tripolar north of 65N, equatorial refinement to 1/3 degree from 10S to 10 N, cosine dependent NS south of 25S, 50 levels); sea ice: CICE4.1 (nominal 1.0 degree EW x 1.0 degrees NS, tripolar north of 65N, equatorial refinement to 1/3 degree from 10S to 10 N, cosine dependent NS south of 25S); land: MOSES2 (1.875 degree EW x 1.25 degree NS, 4 levels" ; :model_id = "ACCESS1-0" ; :forcing = "GHG, Oz, SA, Sl, Vl, BC, OC, (GHG = CO2, N2O, CH4, CFC11, CFC12, CFC113, HCFC22, HFC125, HFC134a)" ; :parent_experiment_id = "piControl" ; :parent_experiment_rip = "r1i1p1" ; :branch_time = 109207. ; :contact = "The ACCESS wiki: http://wiki.csiro.au/confluence/display/ACCESS/Home. Contact Tony.Hirst at csiro.au regarding the ACCESS coupled climate model. Contact Peter.Uhe at csiro.au regarding ACCESS coupled climate model CMIP5 datasets." ; :history = "CMIP5 compliant file produced from raw ACCESS model output using the ACCESS Post-Processor and CMOR2. 2012-01-17T03:16:49Z CMOR rewrote data to comply with CF standards and CMIP5 requirements." ; :references = "See http://wiki.csiro.au/confluence/display/ACCESS/ACCESS+Publications" ; :initialization_method = 1 ; :physics_version = 1 ; :tracking_id = "cc07b4bf-f3dc-483a-8407-d1a34397d273" ; :version_number = "v20120115" ; :product = "output" ; :experiment = "historical" ; :frequency = "mon" ; :creation_date = "2012-01-17T03:16:49Z" ; :Conventions = "CF-1.4" ; :project_id = "CMIP5" ; :table_id = "Table OImon (27 April 2011) f04ba250f3acd5b9e847c21d5752eb85" ; :title = "ACCESS1-0 model output prepared for CMIP5 historical" ; :parent_experiment = "pre-industrial control" ; :modeling_realm = "seaIce ocean" ; :realization = 1 ; :cmor_version = "2.8.0" ;
Thank you in Advance
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