[gradsusr] Error opening NetCDF file
diego
diego333medina at yahoo.es
Thu May 17 19:02:48 EDT 2012
Hi all:
I have taken a netcdf data file from the following link:
ftp://ftp.ncdc.noaa.gov/pub/data/cmb/ersst/v3b/netcdf/
While I try to open this file in GrADS I got the following error message:
ga-> open ersst.ctl
Scanning description file: ersst
Data file ersst.198901.nc is open as file 1
LON set to 0 360
LAT set to -88 88
LEV set to 0 0
Time values set: 1989:1:1:0 1989:1:1:0
E set to 1 1
ga-> q file
File 1 :
Descriptor: ersst.ctl
Binary: ersst.198901.nc
Type = Gridded
Xsize = 180 Ysize = 89 Zsize = 1 Tsize = 1 Esize = 1
Number of Variables = 3
tsm 0 1,y,x temperature
an 0 1,y,x anomalia
er 0 1,y,x error
ga-> d tsm
gancgrid error: nc_get_vara_double failed; NetCDF: Index exceeds dimension bound
Data Request Error: Error for variable 'tsm'
Error ocurred at column 1
DISPLAY error: Invalid expression
Expression = tsm
ga-> quit
can anywhere help me ?
Thanks
My ctl file is :
DSET ^ersst.198901.nc
*DSET ^ersst.%y4%m2.nc
*OPTIONS template
DTYPE netcdf
UNDEF -999s
xdef 180 linear 0 2
ydef 89 linear -88 2
zdef 1 levels 0
TDEF 1 linear jan1989 1mo
vars 3
sst=>tsm 0 1,y,x temperature
anom=>an 0 1,y,x anomalia
err=>er 0 1,y,x error
endvars
The Netcdf file Is:
ncdump ersst.199908.nc
netcdf ersst.199908 {
dimensions:
time = 1 ;
zlev = 1 ;
lat = 89 ;
lon = 180 ;
variables:
float time(time) ;
time:long_name = "Center time of the day" ;
time:units = "days since 1854-01-15" ;
time:delta_t = "0000-01-00" ;
time:avg_period = "0000-01-00" ;
float zlev(zlev) ;
zlev:long_name = "Sea surface height" ;
zlev:units = "meters" ;
zlev:actual_range = "0, 0" ;
float lat(lat) ;
lat:long_name = "Latitude" ;
lat:units = "degrees_north" ;
lat:grids = "Uniform grid from -88 to 88 by 2" ;
float lon(lon) ;
lon:long_name = "Longitude" ;
lon:units = "degrees_east" ;
lon:grids = "Uniform grid from 0 to 358 by 2" ;
short sst(time, zlev, lat, lon) ;
sst:long_name = "Extended reconstructed sea surface temperature" ;
sst:units = "degrees_C" ;
sst:_FillValue = -999s ;
sst:add_offset = 0.f ;
sst:scale_factor = 0.01f ;
sst:valid_min = -300s ;
sst:valid_max = 4500s ;
short anom(time, zlev, lat, lon) ;
anom:long_name = "Extended reconstructed SST anomalies" ;
anom:units = "degrees_C" ;
anom:_FillValue = -999s ;
anom:add_offset = 0.f ;
anom:scale_factor = 0.01f ;
anom:valid_min = -1200s ;
anom:valid_max = 1200s ;
short err(time, zlev, lat, lon) ;
err:long_name = "Estimated error standard deviation of analyzed_ersst" ;
err:units = "degrees_C" ;
err:_FillValue = -999s ;
err:add_offset = 0.f ;
err:scale_factor = 0.01f ;
err:valid_min = 0s ;
err:valid_max = 1000s ;
// global attributes:
:title = "ERSST V3b in situ only" ;
:history = "Version 3b" ;
:creation_date = "2010-03-23" ;
:description = "Smith, T.M., and R.W. Reynolds, 2003: Extended Reconstruction of Global Se
a Surface Temperatures Based on COADS Data (1854-1997). Journal of Climate, 16, 1495-1510. A vailable at h
ttp://www.ncdc.noaa.gov/img/climate/research/sst/ersst.pdf Climatology is based on 1971-2000 OI.v2 SST, I
n situ data: ICOADS2.4 before 2006 and NCEP in situ data from 2007 to present" ;
:source = "NOAA/National Climatic Data Center" ;
:contact = "Dick Reynolds, email: Richard.W.Reynolds at noaa.gov & Chunying Liu, email: Chuny
ing.liu at noaa.gov" ;
:Conventions = "CF-1.0" ;
data:
time = 53172 ;
zlev = 0 ;
lat = -88, -86, -84, -82, -80, -78, -76, -74, -72, -70, -68, -66, -64, -62,
-60, -58, -56, -54, -52, -50, -48, -46, -44, -42, -40, -38, -36, -34,
-32, -30, -28, -26, -24, -22, -20, -18, -16, -14, -12, -10, -8, -6, -4,
-2, 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34,
36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 64, 66, 68, 70,
72, 74, 76, 78, 80, 82, 84, 86, 88 ;
lon = 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36,
38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 64, 66, 68, 70, 72,
74, 76, 78, 80, 82, 84, 86, 88, 90, 92, 94, 96, 98, 100, 102, 104, 106,
108, 110, 112, 114, 116, 118, 120, 122, 124, 126, 128, 130, 132, 134,
136, 138, 140, 142, 144, 146, 148, 150, 152, 154, 156, 158, 160, 162,
164, 166, 168, 170, 172, 174, 176, 178, 180, 182, 184, 186, 188, 190,
192, 194, 196, 198, 200, 202, 204, 206, 208, 210, 212, 214, 216, 218,
220, 222, 224, 226, 228, 230, 232, 234, 236, 238, 240, 242, 244, 246,
248, 250, 252, 254, 256, 258, 260, 262, 264, 266, 268, 270, 272, 274,
276, 278, 280, 282, 284, 286, 288, 290, 292, 294, 296, 298, 300, 302,
304, 306, 308, 310, 312, 314, 316, 318, 320, 322, 324, 326, 328, 330,
332, 334, 336, 338, 340, 342, 344, 346, 348, 350, 352, 354, 356, 358 ;
sst =
_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _,
_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _,
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