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On the Assessment of Surface Heat Flux and Evaporation Using Large-Scale Parameters

1972/02/01 by C. H. B. PRIESTLEY, C. H. B. Priestley, R. J. Taylor +1 · 6,719 citations
Earth and Planetary Sciences · Engineering · Environmental Science · Mathematics · #Advection #Atmospheric sciences #Environmental science #Evaporation #Fluid Dynamics and Turbulent Flows #Flux (metallurgy) #Geology #Geometry #Heat flux #Heat transfer #Latent heat #Materials science #Mathematics #Meteorological Phenomena and Simulations #Physics #Plant Water Relations and Carbon Dynamics #Potential evaporation #Scale (ratio) #Sensible heat #Surface (topology) #Thermodynamics

paper · pdf · doi:10.1175/1520-0493(1972)100<0081:otaosh>2.3.co;2

published in Monthly Weather Review 100(2), 81-92 (American Meteorological Society)

openalex publication_date 1972/02/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

In an introductory review it is reemphasized that the large-scale parameterization of the surface fluxes of sensible and latent heat is properly expressed in terms of energetic considerations over land while formulas of the bulk aerodynamic type are most suitahle over the sea. A general framework is suggested. Data from a number of saturated land sites and open water sites in the absence of advection suggest a widely applicable formula for the relationship between sensible and latent heat fluxes. For drying land surfaces, we assume that the evaporation rate is given by the same formula for evaporation multiplied by a factor. This factor is found to remain at unity while an amount of water, varying from one site to another, is evaporated. Following this a linear decrease sets in, reducing the evaporation rate to zero after a further 5 cm of evaporation, the same at several sites examined.

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