problem

Dear NCL user,
I want to calculate three days average with the help of separate daily sst files. So, when I calculate it from one day file it works properly and when I calculate three days averages it indicates some errors given below. Anyone could you help me to solving this problem?
Thanks
Kalim
 
********************************
   f = addfile("amsr-avhrr-v2.20030601.nc","r")
   t  = short2flt(f->sst(0,0,:,:))
   printVarSummary(t)
   f1 = addfile("amsr-avhrr-v2.20030602.nc","r")
   t1  = short2flt(f1->sst(0,0,:,:))
   f2 = addfile("amsr-avhrr-v2.20030603.nc","r")
   t2  = short2flt(f2->sst(0,0,:,:))
   T = (/t+t1+t2/)/3
   printVarSummary(T)
 ;
  plot = gsn_csm_contour_map_ce(wks,T(:,:), res)
  end

********************************
Variable: t
Type: float
Total Size: 4147200 bytes
            1036800 values
Number of Dimensions: 2
Dimensions and sizes:   [lat | 720] x [lon | 1440]
Coordinates:
            lat: [-89.875..89.875]
            lon: [0.125..359.875]
Number Of Attributes: 7
  zlev :         0
  time :        9282
  long_name :   Daily sea surface temperature
  units :       degrees C
  _FillValue :  -999
  valid_min :   -300
  valid_max :   4500
**************************
Variable: T
Type: float
Total Size: 4147200 bytes
            1036800 values
Number of Dimensions: 2
Dimensions and sizes:   [720] x [1440]
Coordinates:
Number Of Attributes: 1
  _FillValue :  -999
(0)     check_for_y_lat_coord: Warning: Data either does not contain a valid latitude coordinate array or doesn't contain one at all.
(0)     A valid latitude coordinate array should have a 'units' attribute equal to one of the following values:
(0)         'degrees_north' 'degrees-north' 'degree_north' 'degrees north' 'degrees_N' 'Degrees_north' 'degree_N' 'degreeN' 'degreesN' 'deg north'
(0)     check_for_lon_coord: Warning: Data either does not contain a valid longitude coordinate array or doesn't contain one at all.
(0)     A valid longitude coordinate array should have a 'units' attribute equal to one of the following values:
(0)         'degrees_east' 'degrees-east' 'degree_east' 'degrees east' 'degrees_E' 'Degrees_east' 'degree_E' 'degreeE' 'degreesE' 'deg east'

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Received on Mon Jan 11 21:16:32 2010