Is there any difference between zonalAve and dim_avg_Wrap?

Hi, all

     I used "zonalAve" to calculate the zonal mean for a array of
us(lat|:,lon|:,time|:), Here below
is my script:

    ..... .................
    printVarSummary(us)
    uzm = zonalAve(us)
    printVarSummary(uzm)
  .........................

and I get the following :

   Variable: us
Type: float
Total Size: 2004480 bytes
            501120 values
Number of Dimensions: 3
Dimensions and sizes: [lat | 5] x [lon | 144] x [time | 696]

Variable: uzm
Type: float
Total Size: 2880 bytes
            720 values
Number of Dimensions: 2
Dimensions and sizes: [lat | 5] x [lon | 144]

Is it necessary to set the longitude as the rightmost dimension for the
function of
"zonalAve" ? Is there any difference between zonalAve and dim_avg_Wrap?
Shoule the instruction in the URL
http://www.ncl.ucar.edu/Document/Functions/Contributed/zonalAve.shtml
be updated?

Thanks!

Leo

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Received on Thu Sep 22 01:02:03 2011