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Re: 19990405: RMS question

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  • Subject: Re: 19990405: RMS question
  • Date: Mon, 05 Apr 1999 08:46:11 -0800
Thanks Steve

Unidata Support wrote:

> >From: Brian Brong <address@hidden>
> >Organization: .
> >Keywords: 199904051532.JAA08833
>
> >Unidata,
> >
> >I'm using OABSFC to perform a temperature analysis for my masters
> >thesis.  I'm looking for clarification on the RMS values, seen below.
> >Is RMS the mean square difference between the observations and the grid
> >points or is it the root mean square difference?
> >
> >
> >   RMS values for pass  1
> >            TMPK    TMPC    THTA    STHA
> >  RMS       2.99    2.29    2.80    0.01
> >  #STN       101     101     101     101
> >
> >   RMS values for pass  2
> >            TMPK    TMPC    THTA    STHA
> >  RMS       2.13    1.93    2.41    0.01
> >  #STN       100     100     100     100
> >
> >Thanks for the help
> >
> >Brian Brong
> >Desert Research Institute
> >University of Nevada, Reno
> >
>
> Brian,
>
> RMS is the root mean square difference- eg, in
> $GEMPAKHOME/src/gemlib/oa/oasint.f, you see that the value is
> the square root of the sum of squared differences.
>
> Steve Chiswell
> Unidata User Support
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