EGU2020-4987
https://doi.org/10.5194/egusphere-egu2020-4987
EGU General Assembly 2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

A new method for the detection of incompressible turbulence as a deviation from the hydrostatic balance assumption

Petr Šácha1,2 and Petr Pišoft
Petr Šácha and Petr Pišoft
  • 1Charles University, Faculty of Mathematics and Physics, Department of Atmospheric Physics, Praha 2, Czechia
  • 2University of Natural Resources and Life Sciences, Vienna

This study aims at introducing a simple and physically consistent method for identification and analysis of turbulent layers in the free atmosphere that can supplement the traditional methods (Richardson number criterion, Thorpe scale). The method is based on differences between the observed and hydrostatically derived (with floating level of initialization) pressure. In the paper we derive the method analytically from the Navier Stokes equations and propose a methodology how to isolate information on turbulence from an internal gravity wave and atmospheric structure signal in the pressure differences. Finally we apply the methodology on high vertical-resolution radiosonde data to demonstrate the utility of the novel method by contrasting the results with traditional diagnostics. 

How to cite: Šácha, P. and Pišoft, P.: A new method for the detection of incompressible turbulence as a deviation from the hydrostatic balance assumption, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-4987, https://doi.org/10.5194/egusphere-egu2020-4987, 2020

Comments on the presentation

AC: Author Comment | CC: Community Comment | Report abuse

Presentation version 1 – uploaded on 01 May 2020 , no comments