Abstract: Turbulent fluxes of chemically reactive trace gases in the neutral atmospheric boundary layer (ABL) were simulated with a one-dimensional, coupled diffusion-chemistry model. The effects of rapid chemical reactions were ...

Abstract: Measurements of acoustic backscatter in the lower planetary boundary layer and optical line-of-sight scintillation in the surface layer are each used to compute sensible heat fluxes in the unstable surface layer. Comparisons ...

Abstract: Simulations have been carried out with a numerical model describing air chemistry, aerosol microphysics, and turbulent mixing, in order to study the behavior of fine sulfate particles in the atmospheric surface layer over ...

Abstract: A rugged and stable pressure-sphere anemometer system is described which Provides an accurate measurement of wind velocity and direction within a meter of the ground. The horizontal wind velocity, (u2 + v2)½, agreed very ...

Abstract: A three-dimensional pressure-sphere anemometer and fast thermometer system (P.S.A.T.) was used to measure vertical heat flux density in the atmospheric surface layer at 1?4 m above alta fescue and snap beans. Good agreement ...

Abstract: A model framework for parameterized subgrid-scale surface fluxes (PASS) has been modified and applied as PASS1 to use satellite data, models, and limited surface observations to infer root-zone available moisture (RAM) ...

Abstract: The second part of the parameterization of subgrid-scale surface fluxes model (PASS2) has been developed to estimate long-term evapotranspiration rates over extended areas at a high spatial resolution by using satellite ...

Abstract: Measurements of heat and momentum fluxes along the valley floor of Brush Creek in Colorado are described. The measurements were taken in the fall of 1984 as part of the Department of Energy's Atmospheric Studies in Complex ...

Abstract: The authors compared methods for estimating surface fluxes under clear-sky conditions over a large heterogeneous area from a limited number of ground measurements and from satellite observations using data obtained from ...

Abstract: Estimates of the hydrological budget in the Walnut River Watershed (WRW; ?5000 km2) of southern Kansas were made with a parameterized subgrid-scale surface (PASS) model for the period 1996?2002. With its subgrid-scale ...