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Zonal Flow Regime Changes in a GCM and in a Simple Quasigeostrophic Model: The Role of Stratospheric Dynamics
Publisher: American Meteorological Society
Abstract: The atmospheric general circulation is characterized by both single- and double-jet patterns. The double-jet structure of the zonal mean zonal wind is analyzed in Southern Hemisphere observations for the two calendar months ...
Tropospheric Double Jets, Meridional Cells, and Eddies: A Case Study and Idealized Simulations
Publisher: American Meteorological Society
Abstract: The observed low-frequency variability of the zonally averaged atmospheric circulation in the winter hemisphere is found to be amenable to an interpretation where the subtropical jet is flanked by a secondary midlatitude ...
Statistical Structure of Intrinsic Climate Variability under Global Warming
Publisher: American Meteorological Society
Abstract: limate variability is often studied in terms of fluctuations with respect to the mean state, whereas the dependence between the mean and variability is rarely discussed. Here, a new climate metric is proposed to measure ...