Abstract: Nine years of total ozone measurements from the Total Ozone Mapping Spectrometer (TOMS) on Nimbus 7 are used to study the global structure of the quasi-biennial oscillation (QBO) in total ozone. Interannual variability of ...

Abstract: Theory and observations suggest that the Antarctic polar vortex is relatively isolated from midlatitudes, although others have interpreted the observations to indicate that there is substantial mixing from the interior of ...

Abstract: A simple conceptual model of the relationship between advective transport by breaking waves and diffusive transport is derived. line model postulates that the displacement of fluid parcels by a breaking wave is analogous ...

Abstract: Lagrangian trajectories are used to calculate isentropic mixing properties for unfiltered and filtered Southern Hemisphere stratospheric winds. In wintertime significant mixing is confined to the surf zone between the ...

Abstract: Four years of precipitation retrievals from the Tropical Rainfall Measuring Mission (TRMM) satellite are compared with data from 25 surface rain gauges on the National Oceanic and Atmospheric Administration/Pacific Marine ...

Abstract: A global, nonlinear, equivalent barotropic model is used to study the isentropic mixing of passive tracers by barotropic instability. Basic states are analytical zonal-mean jets representative of the zonal-mean flow in the ...

Abstract: A multigrid finite-difference solver is developed for the Helmholtz equation on the sphere. The finite-difference grid resolution is constant in the latitudinal direction and variable in the longitudinal direction so as ...

Abstract: The global-scale transport properties of the NCEP reanalysis winds for the period from 1979 to 1997 are compared to a standard simulation with version 3 of the NCAR Community Climate Model (CCM3) forced by observed sea ...

Abstract: Total Ozone Mapping Spectrometer images of the springtime Southern Hemisphere commonly show concentric layers in the total ozone field outside the Antarctic polar vortex. The layering appears to result from horizontal ...

Abstract: Observations of long-lived tracers indicate that the time required to mix tropospheric air between the Northern and Southern Hemisphere extratropics is on the order of 1 yr. Mixing within the extratropical troposphere is ...