Articles | Volume 23, issue 2
Nonlin. Processes Geophys., 23, 75–82, 2016

Special issue: Complex environmental and geophysical turbulence

Nonlin. Processes Geophys., 23, 75–82, 2016

Research article 21 Mar 2016

Research article | 21 Mar 2016

Study of the overturning length scales at the Spanish planetary boundary layer

Pilar López and José L. Cano

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Subject: Nonlinear Waves, Pattern Formation, Turbulence | Topic: Climate, atmosphere, ocean, hydrology, cryosphere, biosphere
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Cited articles

Dillon, T. M.: Vertical Overturns: A Comparison of Thorpe and Ozmidov Length Scales, J. Geophys. Res., 87, 9601–9613, 1982.
Fer, I., Skogseth, R. and Haugan, P. M.: Mixing of the Storfjorden overflow (Svalbard Archipelago) inferred from density overturns, J. Geophys. Res., 109, 1–14,, 2004.
Gavrilov, N. M., Luce, H., Crochet, M., Dalaudier, F., and Fukao, S.: Turbulence parameter estimations from high-resolution balloon temperature measurements of the MUTSI-2000 campaign, Ann. Geophys., 23, 2401–2413,, 2005.
Itsweire, E. C.: Measurements of vertical overturns in stably stratified turbulent flow, Phys. Fluids, 27, 764–766, 1984.
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.