Development and technical paper
26 Mar 2014
Development and technical paper | 26 Mar 2014
An improved non-iterative surface layer flux scheme for atmospheric stable stratification conditions
Y. Li1,2,3, Z. Gao1,2, D. Li4, L. Wang2, and H. Wang1
Y. Li et al.
Y. Li1,2,3, Z. Gao1,2, D. Li4, L. Wang2, and H. Wang1
- 1Jiangsu Key Laboratory of Agriculture Meteorology, Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, College of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing, Jiangsu, China
- 2State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China
- 3School of Energy and Environment, City University of Hong Kong, Hong Kong, China
- 4Program of Atmospheric and Oceanic Sciences, Princeton University, Princeton, NJ 08540, USA
- 1Jiangsu Key Laboratory of Agriculture Meteorology, Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, College of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing, Jiangsu, China
- 2State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China
- 3School of Energy and Environment, City University of Hong Kong, Hong Kong, China
- 4Program of Atmospheric and Oceanic Sciences, Princeton University, Princeton, NJ 08540, USA
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Received: 29 Oct 2013 – Discussion started: 05 Dec 2013 – Revised: 14 Feb 2014 – Accepted: 14 Feb 2014 – Published: 26 Mar 2014
Parameterization of turbulent fluxes under stably stratified conditions has always been a challenge. Current surface fluxes calculation schemes either need iterations or suffer low accuracy. In this paper, a non-iterative scheme is proposed to approach the classic iterative computation results using multiple regressions. It can be applied to the full range of roughness status 10 ≤ z/z0 ≤ 105 and −0.5 ≤ log (z0/z0h) ≤ 30 under stable conditions 0 < RiB ≤ 2.5. The maximum (average) relative errors for the turbulent transfer coefficients for momentum and sensible heat are 12% (1%) and 9% (1%), respectively.
