Abstract: The 2-day wave is a prominent feature of the middle and upper atmosphere, amplifying twice-yearly around solstice. Its period, structure, and reproducibility have led to its association with the gravest planetary normal ...

Abstract: Integrations with the nonlinear primitive equations are used to study 3D diabatic structure underlying the Brewer?Dobson circulation of the middle atmosphere. Such structure reveals zonally asymmetric contributions to mean ...

Abstract: Interannual changes of dynamical structure and ozone are investigated in the Tropics and Southern Hemisphere over the 1980s and 1990s. Changes of dynamical structure over the winter hemisphere are accompanied by coherent ...

Abstract: Northern Hemisphere ozone underwent a monotonic decline during the 1980s and 1990s. Systematic changes associated with that trend are shown to have a close relationship to random changes of ozone. These two components of ...

Abstract: Interannual changes of the stratospheric circulation are studied in relation to coherent changes of the tropospheric circulation. Emerging over the winter pole is a clear signature of adiabatic warming and anomalous ...

Abstract: Interannual changes of stratospheric dynamical structure and ozone are explored in observed variations over the Northern Hemisphere during the 1980s and 1990s. Changes of dynamical structure are consistent with a strengthening ...

Abstract: Recent evidence points to a decadal modulation of the quasi-biennial oscillation (QBO), one that varies with the 11-yr cycle of UV irradiance and ozone heating in the upper stratosphere. Interaction between the QBO and the ...

Abstract: Global cloud imagery (GCI) is constructed from multiple satellite platforms that simultaneously monitor the earth. The GCI overcomes sampling limitations that are inherent to measurements from an individual platform, and ...