Publications [#282907] of John D. Albertson

Papers Published

1. Scanlon, TM; Albertson, JD; Kustas, WP, Scale effects in estimating large eddy-driven sensible heat fluxes over heterogeneous terrain, IAHS-AISH Publication no. 267 (2000), pp. 175-180
   (last updated on 2023/08/08)

   Abstract:
   Remotely sensed surface temperatures from the Monsoon 1990 experiment in Arizona were used as boundary conditions for a large eddy simulation (LES) model in order to compute surface sensible heat fluxes (H). The LES model takes into account the dynamic effects of surface heterogeneity. Model runs were conducted over boundary condition resolutions of 200 m, 400 m, and 800 m. Regional averages of H determined by the LES model did not vary significantly over the differing scales of surface resolution and were similar to values derived by an "offline" method, in which average meteorological variables of air temperature and wind speed were used as inputs. However, localized differences in H calculated by the two methods over the surface were as high as 36.75 W m-2, reflecting the surface heterogeneity induced feedbacks present in a dynamic atmospheric boundary layer, as captured by the LES model.