Investigation of the stable atmospheric boundary layer at Halley Antarctica

Rodrigo, Javier Sanz; Anderson, Philip S.. 2013 Investigation of the stable atmospheric boundary layer at Halley Antarctica. Boundary-Layer Meteorology, 148 (3). 517-539. 10.1007/s10546-013-9831-0

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Abstract/Summary

Boundary-layer measurements from the Brunt Ice Shelf, Antarctica are analyzed to determine flux–profile relationships. Dimensionless quantities are derived in the standard approach from estimates of wind shear, potential temperature gradient, Richardson number, eddy diffusivities for momentum and heat, Prandtl number, mixing length and turbulent kinetic energy. Nieuwstadt local scaling theory for the stable atmospheric boundary-layer appears to work well departing only slightly from expressions found in mid-latitudes. An E E – lm l m single-column model of the stable boundary layer is implemented based on local scaling arguments. Simulations based on the first GEWEX Atmospheric Boundary-Layer Study case study are validated against ensemble-averaged profiles for various stability classes. A stability-dependent function of the dimensionless turbulent kinetic energy allows a better fit to the ensemble profiles.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	10.1007/s10546-013-9831-0
Programmes:	BAS Programmes > Polar Science for Planet Earth (2009 - ) > Climate
ISSN:	0006-8314
Additional Keywords:	Antarctica, flux-profile relationships, local scaling, mixing length, stable boundary layer, Richardson number
NORA Subject Terms:	Meteorology and Climatology
Date made live:	24 Jun 2013 12:16 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/502359

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