[gradsusr] Problem reading Netcdf file from the GFDL model output

[Arlindo Meque]

Dear GrADS users,
 
 
1. I have downloaded a GFDL model output from the PCMDI 
(http://www-pcmdi.llnl.gov/).
 
 
 
2. I tried to open the file in GrADS and got the following error message:
ga-> sdfopen 
pcmdi.ipcc4.gfdl_cm2_1.sresa2.run1.monthly.pr_A1.200101-210012.nc 
Scanning self-describing file: 
pcmdi.ipcc4.gfdl_cm2_1.sresa2.run1.monthly.pr_A1.200101-210012.nc 
SDF Error: 365 day calendars are no longer supported by 
sdfopen. 
To open this file with GrADS, use a descriptor file with 
a complete TDEF entry and OPTIONS 365_day_calendar. 
Documentation is at 
http://iges.org/grads/gadoc/SDFdescriptorfile.html
ga->
 
 
3.       I’m now trying to write the descriptor file  but  not sure about the  
XDEF, YDEF, ZDEF, TDEF an EDEF options
 
4.       This is the output from the “ncdump -h” commmand:
 
dimensions: 
lon = 144 ; 
lat = 90 ; 
time = UNLIMITED ; // (1200 currently) 
bnds = 2 ; 
variables: 
double lon(lon) ; 
lon:standard_name = "longitude" ; 
lon:long_name = "longitude" ; 
lon:units = "degrees_east" ; 
lon:axis = "X" ; 
lon:bounds = "lon_bnds" ; 
double lon_bnds(lon, bnds) ; 
double lat(lat) ; 
lat:standard_name = "latitude" ; 
lat:long_name = "latitude" ; 
lat:units = "degrees_north" ; 
lat:axis = "Y" ; 
lat:bounds = "lat_bnds" ; 
double lat_bnds(lat, bnds) ; 
double time(time) ; 
time:standard_name = "time" ; 
time:long_name = "time" ; 
time:units = "days since 2001-01-01 
00:00:00smelt\',\'u_ref\',\'v_ref\',\'swdn_toa\'," ; 
time:axis = "T" ; 
time:calendar = "noleap" ; 
time:bounds = "time_bnds" ; 
double time_bnds(time, bnds) ; 
float pr(time, lat, lon) ; 
pr:standard_name = "precipitation_flux" ; 
pr:long_name = "Precipitation" ; 
pr:units = "kg m-2 s-1" ; 
pr:cell_methods = "time: mean" ; 
pr:original_name = "precip" ; 
pr:comment = "includes all types (rain, snow, large-scale, 
convective, etc.)" ; 

// global attributes: 
:title = "GFDL CM2.1, SRESA2 (run1) SRES A2 experiment 
output for IPCC AR4 and US CCSP" ; 
:institution = "NOAA GFDL (US Dept of Commerce / NOAA / 
Geophysical Fluid Dynamics Laboratory, Princeton, NJ, USA)" 
; 
:source = "GFDL_CM2.1 (2004): atmosphere: AM2.1 (am2p13fv, 
M45L24); ocean: OM3.1 (mom4p1p7_om3p5, tripolar360x200L50); 
sea ice: SIS; land: LM2; infrastructure: FMS preK release" ; 
:contact = "GFDL.Climate.Model.Info at noaa.gov" ; 
:project_id = "IPCC Fourth Assessment and US CCSP 
Projects" ; 
:table_id = "Table A1 (20 September 2004)" ; 
:experiment_id = "SRES A2 experiment" ; 
:realization = 1 ; 
:cmor_version = 0.96f ; 
:Conventions = "CF-1.0" ; 
:history = "input/atmos.200101-210012.precip.nc At 
10:21:27 on 01/28/2005, CMOR rewrote data to comply with CF 
standards and IPCC Fourth Assessment and US CCSP Projects 
requirements" ; 


 
	1. help is need 
 
 
Arlindo