Assignment type mismatch with clmMonTLL

Hi NCL Community,

I'm a newbie in NCL. I would like to compute sea surface temperature monthly
climatology from monthly means stored in a NetCDF file. I'm following the
examples given in the page http://www.ncl.ucar.edu/Applications/climo.shtml.

I'm trying:

load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"
load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl"
load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/shea_util.ncl"

begin

  f = addfile("/home/santiago/Modelagem/ersst_v3/sst.mnmean.nc","r")
  sst = f->sst(0:1859,:,:)
  lon = f->lon
  lat = f->lat
  dat = f->time

  printVarSummary(sst)

  sst_clim(:,:,:) = clmMonTLL(sst)
  sst_stdv(:,:,:) = stdMonTLL(sst)

end

But I always get the error messages below:

fatal:Assignment type mismatch, right hand side can't be coerced to type of
left hand side

fatal:Execute: Error occurred at or near line 2490 in file
$NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl

fatal:Execute: Error occurred at or near line 2689 in file
$NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl

fatal:Execute: Error occurred at or near line 15 in file ersst_clim.ncl

My printVarSummary(sst) gives

Variable: sst
Type: short
Total Size: 59594400 bytes
            29797200 values
Number of Dimensions: 3
Dimensions and sizes: [time | 1860] x [lat | 89] x [lon | 180]
Coordinates:
            time: [19723..76305]
            lat: [88..-88]
            lon: [ 0..358]
Number Of Attributes: 15
  long_name : Monthly Means of Sea Surface Temperature
  valid_range : ( -5, 40 )
  actual_range : ( -1.8, 34.24 )
  units : degC
  add_offset : 0
  scale_factor : 0.01
  missing_value : 32767
  precision : 2
  least_significant_digit : 1
  var_desc : Sea Surface Temperature
  dataset : NOAA Extended Reconstructed SST V3
  level_desc : Surface
  statistic : Mean
  parent_stat : Mean
  _FillValue : 32767

I believe it's a really simple issue, but i can't see what I'm doing wrong.
Could anyone give some help, please?

Cheers,
Paulo Santiago

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Received on Thu Nov 4 11:02:05 2010