Results 191 to 200 of about 592,628 (248)

Spectral Maxima In A Perturbed Stable Boundary Layer

Boundary-Layer Meteorology, 2001
Wind velocity data have been collected on Nansen Ice Sheet, Antarctica, close to the base of a steeply sloping glacier along which frequently flow katabatic winds. The aim of this study is to investigate how turbulent energy and momentum flux are perturbed by the flow interaction with topography and by the strong mechanical mixing produced by downslope
CAVA D.   +2 more
openaire   +2 more sources

Improving mixing length‐scale for stable boundary layers

Quarterly Journal of the Royal Meteorological Society, 2008
AbstractWe intend to improve the ‘z‐less’ mixing length‐scale for parametrization of turbulence in the stable atmospheric boundary layers (SABL). Since the SABL structures are far from being fully understood today, their parametrizations or explicit treatment are still usually very sketchy in most mesoscale and climate models.
Grisogono, Branko, Belušić, Danijel
openaire   +5 more sources

Numerical Exploration of the Stable Atmospheric Boundary Layer

2010 DoD High Performance Computing Modernization Program Users Group Conference, 2009
Simulating the stable atmospheric boundary layer (SABL) presents a significant challenge to numerical models due to the interactions of several processes with widely-varying scales. The goal of this Challenge Project is to more clearly define the role of gravity wave-turbulence interactions as a mechanism for localized destabilization in the SABL.
Benjamin T. MacCall   +6 more
openaire   +1 more source

Nieuwstadt's stable boundary layer revisited

Quarterly Journal of the Royal Meteorological Society, 1990
AbstractCurrently no theory of the stably stratified atmospheric boundary layer (SBL) is generally accepted as definitive even for idealized cases. Nieuwstadt's theory, though a promising candidate, faces objections relating to upper boundary and steady‐state conditions, internal wave effects and the consistency of the model outside the strong ...
openaire   +1 more source

Evaluating Formulations of Stable Boundary Layer Height

Journal of Applied Meteorology, 2004
Abstract Stable boundary layer height h is determined from eddy correlation measurements of the vertical profiles of the buoyancy flux and turbulence energy from a tower over grassland in autumn, a tower over rangeland with variable snow cover during winter, and aircraft data in the stable marine boundary layer generated by warm air ...
L. Mahrt, D. Vickers
openaire   +1 more source

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