[RegCNET] QUERIES ABOUT LATENT HEAT FLUX IN REGCM4

[Suman Maity]

Respected
Sir
This is Suman Maity from IIT KHARAGPUR, India.I have the following queries:
1) As you know, there is no variable for Latent Heat Flux in the Surface
Model output in RegCM4. How to calculate this?
2) There is no variable for Evaporation.One variable is written as
Evapotranspiration. Could I use this for calculation taking as evaporation?

I have searched and previously in regcnet, you have written,

*Latent Heat  =  evporation * 2.51040e6     (if Tas > 0C)
             =  evporation * 2.844e6       (if Tas <= 0C)

Precisely, to convert to unit of W/m**2

Latent Heat  =  evporation * 2.51040e6/86400    (if Tas > 0C)

             =  evporation * 2.844e6/86400      (if Tas <= 0C)
*

But what is "Tas"? It stands for what? Also from where I will get
evaporation?
Please reply and if it is possible forward me any document for the whole
matters.It's Urgent.

Thanking you in advance.

'S Maity'
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Suman Maity*
Research Scholar
Center for Ocean, Rivers, Atmosphere and Land Sciences(CORAL)
Indian Institute Of Technology Kharagpur.
*
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