[ncl-talk] SST plot with strange range

[Arne Melsom]

So, simply replace the line
 oisst  	= in_oisst_f->sst
by
 scale  = in_oisst_f->sst at scale_factor
 offset = in_oisst_f->sst at add_offset
 oisst  = scale*in_oisst_f->sst + offset


----- Original Message -----
> Sorry, I didn't look at your attachments and now that I have, the data
> are definitely packed in shorts:
> 
> 	short sst(time, lat, lon) ;
> 		sst:standard_name = "sea_surface_temperature" ;
> 		sst:long_name = "Monthly Mean of Sea Surface Temperature" ;
> 		sst:units = "degC" ;
> 		sst:add_offset = 0.f ;
> 		sst:scale_factor = 0.01f ;
> 		sst:_FillValue = 32767s ;
> 		sst:missing_value = 32767s ;
> 		sst:unpacked_valid_range = -5.f, 40.f ;
> 		sst:actual_range = -1.8f, 35.31f ;
> 		sst:precision = 2s ;
> 		sst:least_significant_digit = 2s ;
> 		sst:var_desc = "Sea Surface Temperature" ;
> 		sst:dataset = "NOAA Optimum Interpolation (OI) SST V2" ;
> 		sst:level_desc = "Surface" ;
> 		sst:statistic = "Mean" ;
> 		sst:parent_stat = "Weekly Mean" ;
> 		sst:cell_methods = "time: mean (monthly from weekly values
> interpolated to daily)" ;
> 
> In your script, call:
> 
> oisst  	= short2flt(in_oisst_f->sst)
> 
> when you read in the data.  Ferret must automatically apply the
> scale/offset - NCL doesn't.
> 
> Don
> 
> On 11/12/15 9:07 AM, Izidine Pinto wrote:
> > Dear NCL users,
> >
> > I was wondering if anyone can help me solving my problem. It might be
> > simple but I'm missing something.
> > When I plot it in NCL I get big numbers of SSTs but when I plot in
> > ferret I get what I expect (temperature range -2:34 degC)
> > Please see attached the working example and the figure.
> >
> >
> > Thank you
> > Izidine
> >
> >
> >
> >
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> 
> --
> Don Murray
> NOAA/ESRL/PSD and CU-CIRES
> 303-497-3596
> http://www.esrl.noaa.gov/psd/people/don.murray/
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