Transport and Mixing in the Atmosphere
نویسنده
چکیده
Transport and mixing processes in the atmosphere operate on scales from millimeters to thousands of kilometers. In certain parts of the atmosphere the large-scale quasi-horizontal flow appears to play the dominant role in transport and in the stirring process that leads ultimately to true (molecular) mixing at very small scales. Previous work in other fluid dynamical contexts such as ‘chaotic advection’ or ‘Batchelorregime turbulence’ is therefore potentially relevant. This article reviews how, with appropriate modification, fluid dynamical insights and methods can be used, in conjunction with observational data on large-scale velocity fields or on chemical species, to quantify different aspects of transport and mixing in the atmosphere.
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