What do you calculate the surface temperature

Reference no: EM133652520

Assignment:

You've purchased a nice new weather station that can measure both upward and downward shortwave radiation using a pyronometer, as well as temperature. You are eager to test it out, so you take it out onto a snow covered field in the winter and set it up. You measure 500 W/m2 of shortwave radiation coming down, and 400 W/m2 of shortwave radiation going up, and the air temperature is -100C. You Google typical emissivities and find that for air you can use a value of 0.8 and for snow you can use a value of 0.98. You realize that you nice weather station can't measure any of the non-radiative heat transfer elements, so you ignore them.

(a) What do you calculate the surface temperature, Ts, to be in degree C?

You apply for more funding and are successful, allowing you to buy two more instruments for your weather station, one to measure sensible heat flux and another to measure latent heat flux. Unfortunately, you still have to ignore the conductive ground sensible heat flux since you don't want to dig into the field. You measure the convective sensible heat flux to be 12 W/m2 and the convective latent heat flux to be 10 W/m2 .

(b) What do you now calculate the surface temperature, Ts, to be in degree C?

Reference no: EM133652520

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