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RISSatellite-Based Actual Evapotranspiration over Drying Semiarid Terrain in West Africa
Publisher: American Meteorological Society
Abstract: A simple satellite-based algorithm for estimating actual evaporation based on Makkink?s equation is applied to a seasonal cycle in 2002 at three test sites in Ghana, West Africa: at a location in the humid tropical southern ...
Influence of Canopy Seasonal Changes on Turbulence Parameterization within the Roughness Sublayer over an Orchard Canopy
Publisher: American Meteorological Society
Abstract: n this observational study, the role of tree phenology on the atmospheric turbulence parameterization over 10-m-tall and relatively sparse deciduous vegetation is quantified. Observations from the Canopy Horizontal Array ...
The Cessation of Continuous Turbulence as Precursor of the Very Stable Nocturnal Boundary Layer
Publisher: American Meteorological Society
Abstract: he mechanism behind the collapse of turbulence in the evening as a precursor to the onset of the very stable boundary layer is investigated. To this end a cooled, pressure-driven flow is investigated by means of a local ...
Evaluation of Two Land Surface Schemes Used in Terrains of Increasing Aridity in West Africa
Publisher: American Meteorological Society
Abstract: In this study different parameterizations for land surface models currently employed in meteorological models at ECMWF [Tiled ECMWF Surface Scheme for Exchange Processes over Land (TESSEL)] and NCEP (Noah) are evaluated ...
A Conceptual View on Inertial Oscillations and Nocturnal Low-Level Jets
Publisher: American Meteorological Society
Abstract: In the present work Blackadar?s concept of nocturnal inertial oscillations is extended. Blackadar?s concept describes frictionless inertial oscillations above the nocturnal inversion layer. The current work includes ...
Comments on “An Extremum Solution of the Monin–Obukhov Similarity Equations”
Publisher: American Meteorological Society
Intermittent Turbulence and Oscillations in the Stable Boundary Layer over Land. Part I: A Bulk Model
Publisher: American Meteorological Society
Abstract: In the stable boundary layer (SBL) it is observed often that turbulence is not continuous in space and time. This discontinuous, intermittent turbulence causes alternations from the mean evolution of the stratified atmospheric ...
The Minimum Wind Speed for Sustainable Turbulence in the Nocturnal Boundary Layer
Publisher: American Meteorological Society
Abstract: he collapse of turbulence in the nocturnal boundary layer is studied by means of a simple bulk model that describes the basic physical interactions in the surface energy balance. It is shown that for a given mechanical ...
Intermittent Turbulence and Oscillations in the Stable Boundary Layer over Land. Part II: A System Dynamics Approach
Publisher: American Meteorological Society
Abstract: In the stable boundary layer it is often observed that turbulence is not continuous in space and time. This discontinuous, intermittent turbulence causes alterations from the mean evolution of the stratified atmospheric ...
Intermittent Turbulence in the Stable Boundary Layer over Land. Part III: A Classification for Observations during CASES-99
Publisher: American Meteorological Society
Abstract: In this paper a classification of stable boundary layer regimes is presented based on observations of near-surface turbulence during the Cooperative Atmosphere?Surface Exchange Study-1999 (CASES-99). It is found that the ...