Analytical study of a nocturnal low-level jet over a shallow slope

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URI: http://hdl.handle.net/2042/37322
Title: Analytical study of a nocturnal low-level jet over a shallow slope
Author: SHAPIRO, Alan; FEDOROVICH, Evgeni
Description: A simple theory is presented for a nocturnal low-level jet (LLJ) over a planar slope. The theory extends the classical inviscid inertial-oscillation model of LLJs to include up- and downslope motion in the boundary layer within a stably-stratified environment. An initial value problem for the coupled equations of motion and thermodynamic energy is solved for air parcels suddenly freed of a frictional constraint near sunset. The notion of a tilted residual layer is introduced and used to relate initial (sunset) air parcel buoyancy to free-atmosphere stratification and thermal structure of the boundary layer.
Publisher: AFM, Maison de la Mécanique, 39/41 rue Louis Blanc - 92400 Courbevoie
Date: 2009

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