Extended Abstract (84K)1.7
Evapotranspiration and Priestyley-Taylor a in Tallgrass Prairie and winter Wheat Ecosystems
George G. Burba, Univ. of Nebraska, Lincoln, NE; and S. B. Verma
Eddy Covariance measurements of sensible and latent heat fluxes were made in twÏ ecosystems (tallgrass prairie and winter wheat) in north-central Oklahoma. In this presentation, we will discuss the effect of the soil moisture and leaf area on daily values of Priestley-Taylor coefficient a. We will examine variations in the Priestley-Taylor a over the entire growing season. We will also present a simple empirical model to compute actual latent heat flux using the Priestley-Taylor a , adjusted for variations in soil moisture and leaf area.
Supplementary URL: http://snrs1.unl.edu/oklahoma/express.html
Session 1, evapotranspiration and the energy balance
Monday, 20 May 2002, 9:00 AM-12:44 PM
Previous paper Next paper