Bulletin of the American Meteorological Society · 1992 · 56 citations · 8 references
Natural SciencesEarth SciencesMeteorologyAtmospheric ScienceClimate ScienceClimatologyAtmospheric Surface LayerBoundary-layer DynamicsLand Surface ProcessesPlanetary Boundary LayerRadiative ForcingSurface FluxesIrrigated PasturesLand Surface Energy FluxesLatent HeatRemote Sensing Of Surface FluxesSubgrid-scale ModelingSurface Boundary Layer DynamicsSurface Heat BudgetSurface Radiative Flux
A field campaign was carried out near Boardman, Oregon, to study the effects of subgrid-scale variability of sensible- and latent-heat fluxes on surface boundary-layer properties. The experiment involved three U.S. Department of Energy laboratories, one National Oceanic and Atmospheric Administration laboratory, and several universities. The experiment was conducted in a region of severe contrasts in adjacent surface types that accentuated the response of the atmosphere to variable surface forcing. Large values of sensible-heat flux and low values of latent-heat flux characterized a sagebrush steppe area; significantly smaller sensible-heat fluxes and much larger latent-heat fluxes were associated with extensive tracts of irrigated farmland to the north, east, and west of the steppe. Data were obtained from an array of surface flux stations, remote-sensing devices, an instrumented aircraft, and soil and vegetation measurements. The data will be used to address the problem of extrapolating from a limited number of local measurements to area-averaged values of fluxes suitable for use in global climate models.
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