"month_to_annual" function

From: Mahesh Varma <mkmvarma_at_nyahnyahspammersnyahnyah>
Date: Wed Jul 17 2013 - 12:23:28 MDT

Hello,
I am trying to average monthly SST values to yearly values. I use
"month_to_annual" function to do this. When I use "month_to_annual"
function, NCL prints something like

(0) month_to_annual: some grid points have missing data: nt=0 nyr=0
 num(nGood)=43425
(0) month_to_annual: some grid points have missing data: nt=12 nyr=1
 num(nGood)=43425
........... and so on

I am not sure what this error means?.I then tried printing VarSummary and
missing values and here's the result
----------------------------------------
Variable: SSTt_anom
Type: float
Total Size: 286156800 bytes
            71539200 values
Number of Dimensions: 3
Dimensions and sizes: [lat | 180] x [lon | 360] x [time | 1104]
Coordinates:
            lat: [89.5..-89.5]
            lon: [-179.5..179.5]
            time: [16822368..17628096]
Number Of Attributes: 11
  long_name : Monthly 1 degree resolution SST
  standard_name : sea_surface_temperature
  units : degC
  add_offset : 0
  cell_methods : time: lat: lon: mean
  scale_factor : 1
  _FillValue : -1e+30
  missing_value : -1e+30
  actual_range : ( -1.8, 34.76296 )
  description : HadISST 1.1 monthly average sea surface temperature
  anomaly_op_ncl : function calcMonAnomLLT: contributed.ncl
(0) Number missing=25350203
-------------------------------------------

Thanks,
Mahesh

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Received on Wed Jul 17 12:23:37 2013

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