Von Hardenberg J., Fraedrich K., Lunkeit F., Provenzale A.
Meteorologisches Institut der Universitat Hamburg, GermanyIstituto di Cosmogeofisica, Torino, Italy.
Chaos. 2000 Mar;10(1):122-134. doi: 10.1063/1.166491.
We discuss how atmospheric eddies affect transport and mixing of tracers at midlatitudes. To this purpose, we study baroclinic life cycles in a simple dynamical model of the atmosphere. We consider the trapping properties of the developing eddies and the characteristics of meridional transport, and we identify regions of increased mixing. Although the flow is in principle three-dimensional, we illustrate how some of the concepts developed in the study of two-dimensional chaotic advection provide useful information on tracer dynamics in more complicated flows. (c) 2000 American Institute of Physics.
我们讨论了大气涡旋如何影响中纬度地区示踪剂的传输和混合。为此，我们在一个简单的大气动力学模型中研究斜压生命周期。我们考虑了发展中涡旋的捕获特性和经向传输的特征，并确定了混合增强的区域。尽管流动原则上是三维的，但我们说明了二维混沌平流研究中发展的一些概念如何为更复杂流动中的示踪剂动力学提供有用信息。（c）2000美国物理研究所。
