Surface energy balance

1:100 Scale dwg file (meters)
Conversion from meters to feet: a fast and fairly accurate system consists in scaling the drawing by multiplying the value of the unit of measurement in meters by 3.281
 

Components of the surface energy balance on a summer day in Pitt Meadows, Canada (49 ° N), above an irrigated agricultural land (graph from Stull, 1988; data from Oke, 1978)
The relationship between sensible heat flux and latent heat flux is called Bowen's relationship

β = Qh / Qe

and it depends on the humidity available in the soil, the type of soil and the ground cover
(type of vegetation etc)

Ground Cover - Typical values of Bowen's relationship

Semi-arid regions: 5
Grasslands: 0.5
Forests: 0.5
Irrigated grasslands: 0.2
Sea: 0.1