Flux-profile relation with roughness sublayer correction

Johan Arnqvist

doi:10.1002/qj.2426

2014-08-26

PRE

Johan Arnqvist *

Hans Bergström

DOI：10.1002/qj.2426

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摘要

En 中文

Calculation of momentum flux using Monin-Obukhov similarity theory over forested areas is well known to underestimate the flux. Several suggestions of corrections to the standard flux-profile expression have been proposed in order to increase the magnitude of turbulent flux. The aim of this article is to find a simple, analytical representation for the characteristics of the flow within the canopy layer and the surface layer, including the roughness sublayer. A new form of the roughness sublayer correction is proposed, based on the desire to connect the shape of the roughness sublayer correction to forest characteristics. The new flux-profile relation can be used to find the flux or the wind profile whenever simple and fast estimations are needed, as for mesoscale modelling, scalar transport models, or sound propagation models.

Keyword:

roughness sublayer

wind profile

dimensionless gradient

stability expressions

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对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。

期刊

Quarterly Journal of the Royal Meteorological Society

IF:

2.9

论文数:

5.8K

被引数:

2.4W

机构

uppsala university

学者数:

3.7W

论文数: 3.4W

被引数: 47

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