Dimension (TSTEP) of (x) does not have an associated coordinate variable when using dim_max

Hey

I met the problem with "coordinate variable" when post processing CMAQ
output.

I want to get the daily maximum of ozone concentration.

My script is below

;************************************************
   x = f->O3 ; (Time, bottom_top, south_north, west_east)
   dims = getfilevardims(f,"O3")
   printVarSummary(x)
   print (dims)
;************************************************
; Get daily 1hr maximum
;************************************************
  xMaxTime = dim_max( x(LAY|:, {ROW|:}, {COL|:},{TSTEP|:}) )

The output on the screen is

Variable: x
Type: float
Total Size: 1784832 bytes
             446208 values
Number of Dimensions: 4
Dimensions and sizes: [TSTEP | 24] x [LAY | 1] x [ROW | 112] x [COL | 166]
Coordinates:
Number Of Attributes: 3
   long_name : O3
   units : ppmV
   var_desc : Variable O3

Variable: dims
Type: string
Total Size: 16 bytes
             4 values
Number of Dimensions: 1
Dimensions and sizes: [4]
Coordinates:
(0) TSTEP
(1) LAY
(2) ROW
(3) COL
fatal:Dimension (TSTEP) of (x) does not have an associated coordinate
variable
fatal:Execute: Error occurred at or near line 33

Any help will be greatly appreciated.

Xiaoming

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Received on Thu Jan 11 2007 - 09:22:34 MST