[esp-r] Re: MZELWE

[paul strachan]

Dear Felipe,

It means the calculated external longwave flux exceeds a preset value at 
the indicated timestep during the simulation. At present this limit is 
set at 495W/m2 (the warning message units should read W/m2, not W). The 
correlation used in such circumstances is that the longwave flux is a 
function of windspeed and surface-to-air temperature difference:  ( 3.0 
+1.7 V) * (delta-T).

The warning message is commonly generated at times where there is a 
combination of unusually high external surface temperature, high surface 
emissivity and low calculated sky temperature.

Regards
Paul


> Dear all,
>
> I have ran a simulation and a message has been given: "MZELWE: 
> a longwave flux of   -503.3 Watts has been calculated for 
> Surf-5:zona_sur @ increment   227 This is considered high and a 
> correlation will be used."
> What does it means?.  I am attaching the whole message.
>
> Thank you very much
>
> Felipe Duran

-- 
***************************************************************
Dr P A Strachan                   email: paul at esru.strath.ac.uk
ESRU, Dept. of Mechanical Eng.          phone: +44 141 548 2041
University of Strathclyde                 fax: +44 141 552 5105
Glasgow G1 1XJ, UK                 http://www.esru.strath.ac.uk
***************************************************************