[RegCNET] column-level soil/lake energy conservation error (W/m**2)

[Travis O'Brien]

Hi Felipe,

This should not be anything to worry about.  This is a typical occurrence
in CLM output.  To be certain, I have asked a CLM-developer colleague of
mine (Dr. Jinyun Tang), and he indicated that this message often appears
because of rounding errors.

Kind Regards,
-Travis-

On Mon, Aug 13, 2012 at 8:00 AM, Felipe Roque <felipenrs at gmail.com> wrote:

> Hi Friends,
>
> I´m using RegCM-4.1. Anyone knows what could cause an error in subroutine
> BalanceCheck (~/Main/clm3.5/src/biogeophys/BalanceCheckMod.F90)? This
> warning doesn´t stop regcm, but is it a critical error? Should I worry
> about it?
> This subroutine accumulates the numerical truncation errors of the
> water and energy balance calculation. It is helpful to see the performance
> of the process of integration.
> The error for energy balance = abs(Net radiation - change of internal
> energy - Sensible heat - Latent heat)
>
>
>  soil balance e nstep =     49500 point =  4105 imbalance =    0.00 W/m2
>  soil balance e nstep =     49500 point =  5456 imbalance =    0.00 W/m2
>  soil balance e nstep =     49500 point =  2304 imbalance =    0.00 W/m2
>      at day =   68.7497, ktau =     198000 :  1st, 2nd time deriv of ps =
>  0.10248E-04 0.39686E-07,  no. of points w/convection =    3309
>             *** Day      69.7500 solar declination angle =  -4.23964630
> degrees.
>   dectim =    397440.000000000
>  ATM variables written at   1989031018  0.000000000000000E+000
>  SRF variables written at   1989031018  0.000000000000000E+000
> SEARCH BC data for 1989031006
> READY  BC from     1989031000 to 1989031006
>  soil balance e nstep =     49501 point =   614 imbalance =    0.00 W/m2
>  soil balance e nstep =     49501 point =  4743 imbalance =    0.00 W/m2
>   soil balance e nstep =     49501 point =  2304 imbalance =    0.00 W/m2
>  soil balance e nstep =     49501 point =  5456 imbalance =    0.00 W/m2
>  soil balance e nstep =     49501 point =  4599 imbalance =    0.00 W/m2
>  soil balance e nstep =     49501 point =  2716 imbalance =    0.00 W/m2
> .......
> .......
> .......
>
> Thanks, Felipe.
>
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