Nonlinear Processes in Geophysics
Nonlinear Processes in Geophysics
Nonlinear Processes in Geophysics
Articles | Volume 20, issue 5
Articles | Volume 20, issue 5
Nonlin. Processes Geophys., 20, 825–839, 2013
https://doi.org/10.5194/npg-20-825-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue: Nonlinear processes of Air-Sea/Land interaction: from observations...

Nonlin. Processes Geophys., 20, 825–839, 2013
https://doi.org/10.5194/npg-20-825-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 20, issue 5

Research article 29 Oct 2013

Research article | 29 Oct 2013

Momentum and buoyancy transfer in atmospheric turbulent boundary layer over wavy water surface – Part 1: Harmonic wave

Yu. I. Troitskaya4,1, E. V. Ezhova4,1, and S. S. Zilitinkevich2,3,4,5,6 Yu. I. Troitskaya et al.
Show author details
  • 1Institute of Applied Physics RAS, Nizhniy Novgorod, Russia
  • 2Finnish Meteorological Institute, Helsinki, Finland
  • 3Department of Physics, University of Helsinki, Helsinki, Finland
  • 4Department of Radiophysics, N.I. Lobachevski State University of Nizhniy Novgorod, Nizhniy Novgorod, Russia
  • 5Institute of Geography RAS, Moscow, Russia
  • 6Nansen Environmental and Remote Sensing Centre, Bergen, Norway
Received: 28 Mar 2013 – Revised: 19 Jul 2013 – Accepted: 05 Aug 2013 – Published: 29 Oct 2013

Abstract. The surface-drag and mass-transfer coefficients are determined within a self-consistent problem of wave-induced perturbations and mean fields of velocity and density in the air, using a quasi-linear model based on the Reynolds equations with down-gradient turbulence closure. Investigation of a harmonic wave propagating along the wind has disclosed that the surface drag is generally larger for shorter waves. This effect is more pronounced in the unstable and neutral stratification. The stable stratification suppresses turbulence, which leads to weakening of the momentum and mass transfer.

How to cite. Troitskaya, Yu. I., Ezhova, E. V., and Zilitinkevich, S. S.: Momentum and buoyancy transfer in atmospheric turbulent boundary layer over wavy water surface – Part 1: Harmonic wave, Nonlin. Processes Geophys., 20, 825–839, https://doi.org/10.5194/npg-20-825-2013, 2013.