Abstract: Terms in the transformed Eulerian mean equations are computed for the stratospheric warmings of December and January, 1976?77, together with cross sections showing the directions of the Eliassen-Palm (EP) fluxes and residual ...

Abstract: Spectral investigation of horizontal moisture flux data at a number of levels above Bedford, Mass., yields estimates of rms aliasing errors corresponding to various sampling intervals. An attempt is made to relate the ...

Abstract: Since late 1978, the U.K. Meteorological Office (UKMO) has processed accurate radiance measurements of the stratosphere from a set of three radiometers (Statospheric Sounding Unit, Microwave Sounding Unit, High-Resolution ...

Abstract: Trajectory calculations are used to examine ozone transport in the polar winter stratosphere during periods of the Upper Atmosphere Research Satellite (UARS) observations. The value of these calculations for determining ...

Abstract: Trajectory calculations using horizontal winds from the U.K. Meteorological Office data assimilation system and vertical velocities from a radiation calculation are used to simulate the three-dimensional motion of air ...

Abstract: The transport of passive tracers observed by the Upper Atmosphere Research Satellite is simulated using computed three-dimensional trajectories of ≈ 100 000 air parcels initialized on a stratosphere grid, with horizontal ...

Abstract: The three-dimensional evolution of stratospheric water vapor distributions observed by the Microwave Limb Sounder (MLS) during the period October 1991?July 1992 is documented. The transport features inferred from the MLS ...

Abstract: To investigate the effects of the middle atmosphere on climate, the World Climate Research Programme is supporting the project "Stratospheric Processes and their Role in Climate" (SPARC). A central theme of SPARC, to examine ...