Journal article

The role of gravity wave breaking in a case of upper-level near-cloud turbulence

Dragana Zovko-Rajak, Todd P Lane, Robert D Sharman, Stanley B Trier

Monthly Weather Review | American Meteorological Society | Published : 2019

Abstract

An observed turbulence encounter that occurred outside a mesoscale convective system over the central USA on 3 June 2005 is investigated using observations and high resolution numerical modeling. Here, the mechanisms associated with the observed moderate-to-severe turbulence during the evolution of this convective system are examined. Comparison between aircraftobserved eddy dissipation rate data with satellite and radar shows that a majority of turbulence reports are located on the south side and outside of a nocturnal mesoscale convective system (MCS), relatively large distances from the active convective regions. Simulations show that divergent storm-induced upper-level outflow reduces th..

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University of Melbourne Researchers

Grants

Awarded by Australian Research Council's (ARC) Centre of Excellence for Climate System Science


Awarded by ARC Centre of Excellence for Climate Extremes


Funding Acknowledgements

DZR was supported by the Australian Research Council's (ARC) Centre of Excellence for Climate System Science (CE110001028). TPL was supported by the ARC Centre of Excellence for Climate Extremes (CE170100023). Computational resources were provided by the National Computational Infrastructure (NCI) facility in Canberra, Australia. We thank Dave Johnson (NCAR) for assistance with Fig. 1, and two anonymous reviewers for their comments on the manuscript.