Abstract: Evidence of the solar cycle in stratospheric polar temperature rests on a connection to the quasi-biennial oscillation (QBO) of equatorial wind. New evidence reported here establishes a mechanism for how the solar signature ...

Abstract: NCEP reanalyses are used to isolate systematic variations in the stratosphere that operated coherently over the last four decades with the 11-yr variation of UV irradiance. Only a small systematic variation is visible at ...

Abstract: A 3D primitive equation model is used to investigate how the tropical tropopause is influenced by cumulus convection in the troposphere and mean upwelling in the stratosphere. The model simulates the residual mean circulation ...

Abstract: Evidence of the solar cycle in stratospheric polar temperature rests on a connection to the quasi-biennial oscillation (QBO) of equatorial wind. New evidence reported here establishes a mechanism for how the solar signature ...

Abstract: Evidence of the solar cycle in stratospheric polar temperature rests on a connection to the quasi-biennial oscillation (QBO) of equatorial wind. New evidence reported here establishes a mechanism for how the solar signature ...

Abstract: The diurnal cycle present in many climate properties is undersampled in asynoptic data, which, through aliasing, introduces a bias into time-mean behavior derived from satellite measurements. This source of systematic error ...

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 ...