Role of Rossby wave breaking in the variability of large-scale atmospheric transport and mixing
We demonstrate that Rossby wave breaking (RWB) plays an important role in both horizontal and vertical large-scale transport/mixing in both observations and idealized general circulation models. In the horizontal direction, RWB contributes to a substantial fraction of transient moisture flux into the Arctic. In the vertical direction, RWB modifies thermal stratification near the tropopause which leads to enhanced mass exchange across the tropopause. In understanding the variability of RWB related transport and mixing, we show that it is essential to separate the two types of RWB – anticyclonic ...
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