6. The following measurements or estimates were made of the radiative fluxes over a short grass surface during a clear sunny day: Incoming shortwave radiation = 675 W/m² Incoming longwave radiation = 390 W/m² Ground surface temperature= 35 °C Albedo of the surface = 0.20 Emissivity of the surface = 0.92 a. From the radiation balance equation, calculate the net radiation at the surface. b. What would be the net radiation after the surface is thoroughly watered so that its albedo drops to 0.10 and its effective surface temperature reduces to 25 °C c. Qualitatively discuss the effect of watering on other energy fluxes to or from the surface.
6. The following measurements or estimates were made of the radiative fluxes over a short grass surface during a clear sunny day: Incoming shortwave radiation = 675 W/m² Incoming longwave radiation = 390 W/m² Ground surface temperature= 35 °C Albedo of the surface = 0.20 Emissivity of the surface = 0.92 a. From the radiation balance equation, calculate the net radiation at the surface. b. What would be the net radiation after the surface is thoroughly watered so that its albedo drops to 0.10 and its effective surface temperature reduces to 25 °C c. Qualitatively discuss the effect of watering on other energy fluxes to or from the surface.
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Transcribed Image Text:6. The following measurements or estimates were made of the radiative fluxes
over a short grass surface during a clear sunny day:
Incoming shortwave radiation = 675 W/m²
Incoming longwave radiation = 390 W/m²
Ground surface temperature= 35 °C
Albedo of the surface = 0.20
Emissivity of the surface = 0.92
a. From the radiation balance equation, calculate the net radiation at the surface.
b. What would be the net radiation after the surface is thoroughly watered so that
its albedo drops to 0.10 and its effective surface temperature reduces to 25 °C
c. Qualitatively discuss the effect of watering on other energy fluxes to or from
the surface.
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