This paper discusses the extension of established Lagrangian mixing measures to make them applicable to data extracted from a 2-D axisymmetric hurricane simulation. Because of the non-steady and unbounded characteristics of the simulation, the previous measures are extended to a moving frame approach to create time-dependent mixing rates that are dependent upon the initial time of particle integration, and are computed for nonlocal regions. The global measures of mixing derived from finite-time Lyapunov exponents, relative dispersion, and a measured mixing rate are applied to distinct regions representing different characteristic feautures within the model. It is shown that these time-dependent mixing rates exhibit correlations with maximal tangential winds during a quasi-steady state, establishing a connection between mixing and hurricane intensity. © Author(s) 2010.
CITATION STYLE
Rutherford, B., Dangelmayr, G., Persing, J., Kirby, M., & Montgomery, M. T. (2010). Lagrangian mixing in an axisymmetric hurricane model. Atmospheric Chemistry and Physics, 10(14), 6777–6791. https://doi.org/10.5194/acp-10-6777-2010
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