Journal cover Journal topic
Nonlinear Processes in Geophysics An interactive open-access journal of the European Geosciences Union

Journal metrics

  • IF value: 1.321 IF 1.321
  • IF 5-year<br/> value: 1.636 IF 5-year
    1.636
  • SNIP value: 0.903 SNIP 0.903
  • SJR value: 0.709 SJR 0.709
  • IPP value: 1.455 IPP 1.455
  • h5-index value: 20 h5-index 20
Nonlin. Processes Geophys., 23, 75-82, 2016
http://www.nonlin-processes-geophys.net/23/75/2016/
doi:10.5194/npg-23-75-2016
© Author(s) 2016. This work is distributed
under the Creative Commons Attribution 3.0 License.
Research article
21 Mar 2016
Study of the overturning length scales at the Spanish planetary boundary layer
Pilar López1 and José L. Cano2 1Applied Mathematics Dpt. (Biomathematics), Complutense University of Madrid, Madrid, Spain
2Astronomy, Astrophysical and Atmospheric Science Dpt., Complutense University of Madrid, Madrid, Spain
Abstract. The focus of this paper is to analyse the behaviour of the maximum Thorpe displacement (dT)max and the Thorpe scale LT at the atmospheric boundary layer (ABL), extending previous research with new data and improving our studies related to the novel use of the Thorpe method applied to ABL. The maximum Thorpe displacements vary between −900 and 950 m for the different field campaigns. The Thorpe scale LT ranges between 0.2 and 680 m for the different data sets which cover different stratified mixing conditions (turbulence shear-driven and convective regions). We analyse the relationship between (dT)max and the Thorpe scale LT and we deduce that they verify a power law. We also deduce that there is a difference in exponents of the power laws for convective conditions and shear-driven conditions. These different power laws could identify overturns created under different mechanisms.

Citation: López, P. and Cano, J. L.: Study of the overturning length scales at the Spanish planetary boundary layer, Nonlin. Processes Geophys., 23, 75-82, doi:10.5194/npg-23-75-2016, 2016.
Publications Copernicus
Download
Short summary
The focus of this paper is to improve our studies related to the novel use of the Thorpe method applied to atmospheric boundary layer (ABL) using new data from Spanish field experiments. We analyse the time behaviour of the maximum Thorpe displacement (dT)max and the Thorpe-scale LT during a day cycle. We also analyse the relation between (dT)max and LT. We deduce that they confirm a power law statistically significant, with differences between convective conditions and shear-driven conditions.
The focus of this paper is to improve our studies related to the novel use of the Thorpe method...
Share