Articles | Volume 2, issue 2
Weather Clim. Dynam., 2, 475–488, 2021
Weather Clim. Dynam., 2, 475–488, 2021

Research article 09 Jun 2021

Research article | 09 Jun 2021

Atmospheric convergence zones stemming from large-scale mixing

Gabriel M. P. Perez et al.

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Cited articles

Allshouse, M. R. and Peacock, T.: Refining finite-time Lyapunov exponent ridges and the challenges of classifying them, Chaos, 25, 087410,, 2015. a
Alpert, L.: The intertropical convergence zone of the eastern Pacific region (I), B. Am. Meteorol. Soc., 26, 426–432, 1945. a
Ambrizzi, T. and Ferraz, S. E.: An objective criterion for determining the South Atlantic Convergence Zone, Front. Environ. Sci., 3, 23,, 2015. a, b, c, d
Ambrizzi, T., Hoskins, B. J., and Hsu, H.-H.: Rossby wave propagation and teleconnection patterns in the austral winter, J. Atmos. Sci., 52, 3661–3672, 1995. a
Aref, H.: Stirring by chaotic advection, J. Fluid Mech., 143, 1–21, 1984. a
Short summary
Much of the rainfall in tropical regions comes from organised cloud bands called convergence zones (CZs). These bands have hundreds of kilometers. In South America (SA), they cause intense rain for long periods of time. To study these systems, we need to define and identify them with computer code. We propose a definition of CZs based on the the pathways of air, selecting regions where air masses originated in separated regions meet. This method identifies important mechanisms of rain in SA.