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Abstract
Abstract. Over the past years, several studies have validated Nieuwstadt's local scaling hypothesis by utilizing turbulence observations from the mid-latitude, nocturnal stable boundary layers. In this work, we probe into the local scaling characteristics of polar, long-lived stable boundary layers by analyzing turbulence data from the South Pole region of the antarctic plateau.
Highlights
More than two and a half decades ago, Nieuwstadt (1984a,b, 1985) introduced the concept of local scaling for stably stratified atmospheric boundary layer (ABL) flows
Based on several second-order moment equations, he hypothesized that the dimensionless combinations of turbulent variables (fluxes,variances, eddy viscosities etc.), which are measured at the same height could be expressed as “universal” functions of the so-called stability parameter (ζ
The M-O similarity theory is strictly valid in the surface layer, whereas local scaling describes the turbulent structure of the entire stable boundary layer (SBL; Nieuwstadt, 1984a,b, 1985)
Summary
More than two and a half decades ago, Nieuwstadt (1984a,b, 1985) introduced the concept of local scaling for stably stratified atmospheric boundary layer (ABL) flows. Local scaling is an integral part of numerous local closure-based present-day atmospheric models (e.g., Steeneveld et al, 2006; Brown et al, 2008) It has established its niche in the applied field of dispersion modeling (Scire et al, 2000). Several studies have provided independent validation for the local scaling hypothesis (e.g., Lenschow et al, 1988; Basu et al, 2006) Most of these studies have primarily focused on the mid-latitude SBLs. Only a handful have considered SBL turbulence in the polar regions In order to enhance the readability of this paper, a glossary of symbols is presented in Appendix A
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