The Near-Calm Stable Boundary Layer [PDF]
For the near-calm stable boundary layer, nominally 2-m mean wind speed
openaire +1 more source
Evaluation of a Buoyancy and Shear Based Mixing Length for a Turbulence Scheme
We present a new diagnostic mixing length for a turbulence scheme based on a prognostic equation for the turbulence kinetic energy. The formulation adds a local vertical wind shear term to the non-local buoyancy-based mixing length currently used in the ...
Quentin Rodier +3 more
doaj +1 more source
Unconditionally stable perfectly matched layer boundary conditions [PDF]
AbstractA brief review is given of a systematic, product‐formula based approach to construct unconditionally stable algorithms for solving the time‐dependent Maxwell equations. The fundamental difficulties that arise when we want to incorporate uniaxial perfectly matched layer boundary conditions into this scheme is discussed. We construct an algorithm
De Raedt, H., Michielsen, K.
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Local similarity in the stable boundary layer and mixing-length approaches: consistency of concepts [PDF]
In stably stratified flows vertical movement of eddies is limited by the fact that kinetic energy is converted into potential energy, leading to a buoyancy displacement scale z B .
Jonker, H.J.J. +3 more
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Fiber optic distributed temperature sensing for the determination of the nocturnal atmospheric boundary layer height [PDF]
A new method for measuring air temperature profiles in the atmospheric boundary layer at high spatial and temporal resolution is presented. The measurements are based on Raman scattering distributed temperature sensing (DTS) with a fiber optic cable ...
C. A. Keller +6 more
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A method to diagnose boundary-layer type using Doppler lidar [PDF]
A new technique for objective classification of boundary layers is applied to ground-based vertically pointing Doppler lidar and sonic anemometer data.
Albrecht +40 more
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Investigating Neutral and Stable Atmospheric Surface Layers Using Computational Fluid Dynamics
Computational fluid dynamics (CFD) is an effective technique for investigating atmospheric processes at a local scale. For example, in near-source atmospheric dispersion applications, the effects of meteorology, air-pollutant sources, and buildings can ...
Fraser Gemmell
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Scale-Dependent Turbulent Dynamics and Phase-Space Behavior of the Stable Atmospheric Boundary Layer
The structure of turbulent dynamics in a stable atmospheric boundary layer was studied by means of a phase-space description. Data from the CASES-99 experiment, decomposed in local modes (with increasing time scale) using empirical mode decomposition ...
Francesco Carbone +5 more
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Areal-averaged trace gas emission rates from long-range open-path measurements in stable boundary layer conditions [PDF]
Measurements of land-surface emission rates of greenhouse and other gases at large spatial scales (10 000 m<sup>2</sup>) are needed to assess the spatial distribution of emissions.
K. Schäfer +5 more
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Simulating Dispersion in the Evening-Transition Boundary Layer [PDF]
This is the author accepted manuscript. The final version is available from Springer Verlag via the DOI in this recordWe investigate dispersion in the evening-transition boundary layer using large-eddy simulation (LES).
Beare, RJ, Taylor, AC, Thomson, DJ
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