Equilibrium evaporation beneath a growing convective boundary layer
Abstract
Expressions for the equilibrium surface Bowen ratio ( β _{ s }) and equilibrium evaporation are derived for a growing convective boundary layer (CBL) in terms of the Bowen ratio at the top of the mixed layer β _{ i } and the entrainment parameter A_{ R }. If A_{R} is put equal to zero, the solution for β _{ s } becomesthat previously obtained for the zero entrainment or ‘closed box’ model. The PriestleyTaylor parameter α is also calculated and plotted in terms of A _{ R } and β _{ i }. Realistic combinations of the atmospheric parameters give values of α in the range 1.1 to 1.4.
 Publication:

BoundaryLayer Meteorology
 Pub Date:
 July 1994
 DOI:
 10.1007/BF00712522
 Bibcode:
 1994BoLMe..70...37C