[gradsusr] Error of "NetCDF: Start+count exceeds dimension"
Yaqiang Wang
yaqiang.wang at gmail.com
Mon Mar 12 01:14:46 EDT 2012
You should make 'pdef' line as independent to tell GrADS the true x/y
dimension size of the data.
pdef 62 32 lccr 45.39 13.48 31 16 30 60 13.48 60000 60000
On Mon, Mar 12, 2012 at 10:02 AM, LANG WANG
<lang.wang at students.mq.edu.au> wrote:
>
> Hi Grads users
>
> When I use the OpenGrads 2.0.1.oga.1 to open the Netcdf file, one problem
> stucked me called “gancgrid error: nc_get_vara_double failed; NetCDF:
> Start+count exceeds dimension bound”. Could you give me a hand? Thank you so
> much in advance! Look forward to your reply.
>
> Here are the detail of the file with error.
>
> ga-> open c:\test_001_ATM.ctl
>
> Scanning description file: c:\test_001_ATM.ctl
>
> Data file c:\test_001_ATM.nc is open as file 1
>
> LON set to -13.8 41.55
>
> LAT set to 34.79 53.96
>
> LEV set to 25 25
>
> Time values set: 1990:6:1:0 1990:6:1:0
>
> E set to 1 1
>
> ga-> q file
>
> File 1 : ICTP Regional Climatic model V4 ATM outputpdef 62 32 lccr 45.39
> 13.48 3
>
> 1 16 30 60 13.48 60000 60000
>
> Descriptor: c:\test_001_ATM.ctl
>
> Binary: c:\test_001_ATM.nc
>
> Type = Gridded
>
> Xsize = 206 Ysize = 72 Zsize = 18 Tsize = 21 Esize = 1
>
> Number of Variables = 15
>
> xlat 0 y,x Latitude at cross points (degrees_north)
>
> xlon 0 y,x Longitude at cross points (degrees_east)
>
> topo 0 y,x Domain surface elevation (m)
>
> mask 0 y,x Domain land/ocean mask (1)
>
> ps 0 t,y,x Surface pressure (hPa)
>
> u 18 t,z,y,x U component (westerly) of wind (m s-1)
>
> v 18 t,z,y,x V component (southerly) of wind (m s-1)
>
> omega 18 t,z,y,x Pressure velocity (hPa s-1)
>
> t 18 t,z,y,x Temperature (K)
>
> qv 18 t,z,y,x Water vapor mixing ratio (kg kg-1)
>
> qc 18 t,z,y,x Cloud water mixing ratio (kg kg-1)
>
> tpr 0 t,y,x Total daily precipitation rate (kg m-2 day-1)
>
> tgb 0 t,y,x Lower groud temperature (K)
>
> swt 0 t,y,x Total soil water (kg m-2)
>
> rno 0 t,y,x Runoff accumulated infiltration (kg m-2 day-1)
>
> ga-> d xlat
>
> gancgrid error: nc_get_vara_double failed; NetCDF: Start+count exceeds
> dimension
>
> bound
>
> Data Request Error: Error for variable 'xlat'
>
> Error ocurred at column 1
>
> DISPLAY error: Invalid expression
>
> Expression = xlat
>
> ga-> d qc
>
> gancgrid error: nc_get_vara_double failed; NetCDF: Start+count exceeds
> dimension
>
> bound
>
> Data Request Error: Error for variable 'qc'
>
> Error ocurred at column 1
>
> DISPLAY error: Invalid expression
>
> Expression = qc
>
>
>
> The head of the NetCDF file
>
> netcdf test_001_ATM {
>
> dimensions:
>
> iy = 32 ;
>
> jx = 62 ;
>
> time = UNLIMITED ; // (21 currently)
>
> kz = 18 ;
>
> variables:
>
> int rcm_map ;
>
> rcm_map:grid_mapping_name = "lambert_conformal_conic" ;
>
> rcm_map:grid_size_in_meters = 60000. ;
>
> rcm_map:latitude_of_projection_origin = 45.39 ;
>
> rcm_map:longitude_of_projection_origin = 13.48 ;
>
> rcm_map:longitude_of_central_meridian = 13.48 ;
>
> rcm_map:standard_parallel = 30.f, 60.f ;
>
> float sigma(kz) ;
>
> sigma:standard_name = "atmosphere_sigma_coordinate" ;
>
> sigma:long_name = "Sigma at model layers" ;
>
> sigma:units = "1" ;
>
> sigma:axis = "Z" ;
>
> sigma:positive = "down" ;
>
> sigma:formula_terms = "sigma: sigma ps: ps ptop: ptop" ;
>
> float ptop ;
>
> ptop:standard_name = "air_pressure" ;
>
> ptop:long_name = "Pressure at model top" ;
>
> ptop:units = "hPa" ;
>
> float iy(iy) ;
>
> iy:standard_name = "projection_y_coordinate" ;
>
> iy:long_name = "y-coordinate in Cartesian system" ;
>
> iy:units = "km" ;
>
> float jx(jx) ;
>
> jx:standard_name = "projection_x_coordinate" ;
>
> jx:long_name = "x-coordinate in Cartesian system" ;
>
> jx:units = "km" ;
>
> float xlat(iy, jx) ;
>
> xlat:standard_name = "latitude" ;
>
> xlat:long_name = "Latitude at cross points" ;
>
> xlat:units = "degrees_north" ;
>
> float xlon(iy, jx) ;
>
> xlon:standard_name = "longitude" ;
>
> xlon:long_name = "Longitude at cross points" ;
>
> xlon:units = "degrees_east" ;
>
> float topo(iy, jx) ;
>
> topo:standard_name = "surface_altitude" ;
>
> topo:long_name = "Domain surface elevation" ;
>
> topo:units = "m" ;
>
> topo:coordinates = "xlat xlon" ;
>
> topo:grid_mapping = "rcm_map" ;
>
> float mask(iy, jx) ;
>
> mask:standard_name = "landmask" ;
>
> mask:long_name = "Domain land/ocean mask" ;
>
> mask:units = "1" ;
>
> mask:coordinates = "xlat xlon" ;
>
> mask:grid_mapping = "rcm_map" ;
>
> double time(time) ;
>
> time:standard_name = "time" ;
>
> time:long_name = "time" ;
>
> time:calendar = "standard" ;
>
> time:units = "hours since 1990-06-01 00:00:00 UTC" ;
>
> float ps(time, iy, jx) ;
>
> ps:standard_name = "surface_air_pressure" ;
>
> ps:long_name = "Surface pressure" ;
>
> ps:units = "hPa" ;
>
> ps:coordinates = "xlat xlon" ;
>
> ps:grid_mapping = "rcm_map" ;
>
> float u(time, kz, iy, jx) ;
>
> u:standard_name = "eastward_wind" ;
>
> u:long_name = "U component (westerly) of wind" ;
>
> u:units = "m s-1" ;
>
> u:coordinates = "xlat xlon" ;
>
> u:grid_mapping = "rcm_map" ;
>
> float v(time, kz, iy, jx) ;
>
> v:standard_name = "northward_wind" ;
>
> v:long_name = "V component (southerly) of wind" ;
>
> v:units = "m s-1" ;
>
> v:coordinates = "xlat xlon" ;
>
> v:grid_mapping = "rcm_map" ;
>
> float omega(time, kz, iy, jx) ;
>
> omega:standard_name = "lagrangian_tendency_of_air_pressure"
> ;
>
> omega:long_name = "Pressure velocity" ;
>
> omega:units = "hPa s-1" ;
>
> omega:coordinates = "xlat xlon" ;
>
> omega:grid_mapping = "rcm_map" ;
>
> float t(time, kz, iy, jx) ;
>
> t:standard_name = "air_temperature" ;
>
> t:long_name = "Temperature" ;
>
> t:units = "K" ;
>
> t:coordinates = "xlat xlon" ;
>
> t:grid_mapping = "rcm_map" ;
>
> float qv(time, kz, iy, jx) ;
>
> qv:standard_name = "humidity_mixing_ratio" ;
>
> qv:long_name = "Water vapor mixing ratio" ;
>
> qv:units = "kg kg-1" ;
>
> qv:coordinates = "xlat xlon" ;
>
> qv:grid_mapping = "rcm_map" ;
>
> float qc(time, kz, iy, jx) ;
>
> qc:standard_name = "cloud_liquid_water_mixing_ratio" ;
>
> qc:long_name = "Cloud water mixing ratio" ;
>
> qc:units = "kg kg-1" ;
>
> qc:coordinates = "xlat xlon" ;
>
> qc:grid_mapping = "rcm_map" ;
>
> float tpr(time, iy, jx) ;
>
> tpr:standard_name = "precipitation_flux" ;
>
> tpr:long_name = "Total daily precipitation rate" ;
>
> tpr:units = "kg m-2 day-1" ;
>
> tpr:coordinates = "xlat xlon" ;
>
> tpr:grid_mapping = "rcm_map" ;
>
> float tgb(time, iy, jx) ;
>
> tgb:standard_name = "soil_temperature" ;
>
> tgb:long_name = "Lower groud temperature" ;
>
> tgb:units = "K" ;
>
> tgb:coordinates = "xlat xlon" ;
>
> tgb:grid_mapping = "rcm_map" ;
>
> float swt(time, iy, jx) ;
>
> swt:standard_name = "moisture_content_of_soil_layer" ;
>
> swt:long_name = "Total soil water" ;
>
> swt:units = "kg m-2" ;
>
> swt:coordinates = "xlat xlon" ;
>
> swt:grid_mapping = "rcm_map" ;
>
> swt:_FillValue = -1.e+34f ;
>
> float rno(time, iy, jx) ;
>
> rno:standard_name = "runoff_flux" ;
>
> rno:long_name = "Runoff accumulated infiltration" ;
>
> rno:units = "kg m-2 day-1" ;
>
> rno:coordinates = "xlat xlon" ;
>
> rno:grid_mapping = "rcm_map" ;
>
> rno:_FillValue = -1.e+34f ;
>
>
>
> // global attributes:
>
> :title = "ICTP Regional Climatic model V4 ATM output" ;
>
> :institution = "ICTP" ;
>
> :source = "RegCM Model simulation output" ;
>
> :Conventions = "CF-1.4" ;
>
> :history = "2012-02-11 13:21:03 : Created by RegCM model" ;
>
> :references =
> "http://eforge.escience-lab.org/gf/project/regcm" ;
>
> :experiment = "test_001" ;
>
> :projection = "LAMCON" ;
>
> :grid_mapping_name = "lambert_conformal_conic" ;
>
> :grid_size_in_meters = 60000. ;
>
> :latitude_of_projection_origin = 45.39 ;
>
> :longitude_of_projection_origin = 13.48 ;
>
> :longitude_of_central_meridian = 13.48 ;
>
> :standard_parallel = 30.f, 60.f ;
>
> :model_IPCC_scenario = "A1B" ;
>
> :model_boundary_conditions = "Relaxation, exponential
> technique" ;
>
> :model_cumulous_convection_scheme = "Emanuel (1991)" ;
>
> :model_boundary_layer_scheme = "Holtslag PBL (Holtslag,
> 1990)" ;
>
> :model_moist_physics_scheme = "Explicit moisture (SUBEX; Pal
> et al 2000)" ;
>
> :model_ocean_flux_scheme = "Zeng et al (1998)" ;
>
> :model_pressure_gradient_force_scheme = "Use full fields" ;
>
> :model_use_emission_factor = "No" ;
>
> :model_use_lake_model = "No" ;
>
> :model_chemistry = "Not active" ;
>
> :model_diurnal_cycle_sst = "Not active" ;
>
> :model_seaice_effect = "Not active" ;
>
> :model_seasonal_desert_albedo_effect = "Active" ;
>
> :model_simulation_initial_start = 1990060100 ;
>
> :model_simulation_start = 1990060100 ;
>
> :model_simulation_expected_end = 1990060600 ;
>
> :model_simulation_is_a_restart = "No" ;
>
> :model_timestep_in_seconds = 150. ;
>
> :model_timestep_in_minutes_solar_rad_calc = 30. ;
>
> :model_timestep_in_seconds_bats_calc = 600. ;
>
> :model_timestep_in_hours_radiation_calc = 18. ;
>
> :model_timestep_in_hours_boundary_input = 6 ;
>
> }
>
> Descriptor file
> DSET c:\test_001_ATM.nc
> dtype netcdf
> undef -1e+34_FillValue
> title ICTP Regional Climatic model V4 ATM outputpdef 62 32 lccr 45.39 13.48
> 31 16 30 60 13.48 60000 60000
> XDEF 206 LINEAR -13.8 0.27
> YDEF 72 LINEAR 34.79 0.27
> ZDEF 18 levels 25.0 75.0 130.0 195.0 270.0 350.0 430.0 510.0
> 590.0 670.0 745.0 810.0 865.0 910.0 945.0 970.0 985.0 995.0
> TDEF 21 linear 00Z01jun1990 6hrvectorpairs u,v s01u10m,s01v10m
> vars 15
> xlat=>xlat 0 y,x Latitude at cross points (degrees_north)
> xlon=>xlon 0 y,x Longitude at cross points (degrees_east)
> topo=>topo 0 y,x Domain surface elevation (m)
> mask=>mask 0 y,x Domain land/ocean mask (1)
> ps=>ps 0 t,y,x Surface pressure (hPa)
> u=>u 18 t,z,y,x U component (westerly) of wind (m s-1)
> v=>v 18 t,z,y,x V component (southerly) of wind (m s-1)
> omega=>omega 18 t,z,y,x Pressure velocity (hPa s-1)
> t=>t 18 t,z,y,x Temperature (K)
> qv=>qv 18 t,z,y,x Water vapor mixing ratio (kg kg-1)
> qc=>qc 18 t,z,y,x Cloud water mixing ratio (kg kg-1)
> tpr=>tpr 0 t,y,x Total daily precipitation rate (kg m-2 day-1)
> tgb=>tgb 0 t,y,x Lower groud temperature (K)
> swt=>swt 0 t,y,x Total soil water (kg m-2)
> rno=>rno 0 t,y,x Runoff accumulated infiltration (kg m-2 day-1)
> endvars
>
>
>
> Thank you so much!
>
>
>
>
> --
> Lang WANG
> PhD Student
> Department of Environment and Geography
> Faculty of Science
> Macquarie University
> Sydney
> NSW 2109
> Australia
>
> lang.wang at students.mq.edu.au
> http://www.mq.edu.au/
>
> Tel. +61 (0)2 9850 6372
>
>
>
>
>
> --
> Lang WANG
> PhD Student
> Department of Environment and Geography
> Faculty of Science
> Macquarie University
> Sydney
> NSW 2109
> Australia
>
> lang.wang at students.mq.edu.au
> http://www.mq.edu.au/
>
> Tel. +61 (0)2 9850 6372
>
>
>
> _______________________________________________
> gradsusr mailing list
> gradsusr at gradsusr.org
> http://gradsusr.org/mailman/listinfo/gradsusr
>
--
*************************************************
Dr. Yaqiang Wang
Chinese Academy of Meteorological Sciences (CAMS)
46, Zhong-Guan-Cun South Avenue
Beijing, 100081
China
yaqiang.wang at gmail.com
http://www.meteothinker.com
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