Abstract: Based on the success of several 2-D (latitude, longitude) linear barotropic instability models at matching some of the observed characteristics of the cloud level, polar region of the Venus atmosphere, a more realistic, ...

Abstract: Data from the Limb Infrared Monitor of the Stratosphere (LIMS) have been used to define zonally averaged basic-state temperature and zonal wind fields in the middle atmosphere for several periods during the winter of ...

Abstract: Geopotential height fields, based on high vertical resolution radiometer measurements, have been used to infer the circulation in the stratosphere from 100 to 1 mb, in the Northern Hemisphere, on a daily basis during ...

Abstract: A diagnostic, quasi-linear model has been developed which uses observed solar-related temperatures and a specified zonal mean circulation and thermal structure to find the solar-related circulation above the clouds of ...

Abstract: Infrared and radio observations of the upper cloud region of Venus indicate that the north polar region contains Features of large thermal contrast. A cold collar, encompassing a region of temperature inversions, lies ...

Abstract: We have used a linearized nondivergent barotropic vorticity model on a sphere to intercompare the fastest growing, barotropically unstable wave modes computed for zonal jets at high latitudes in the middle atmospheres of ...

Abstract: Two years of stratospheric measurements of ozone from the Upper Atmosphere Research Satellite Microwave Limb Sounder are examined in order to characterize large horizontal scale wave variations. The use of Fourier analysis ...

Abstract: Global ozone observations from the Microwave Limb Sounder (MLS) aboard the Upper Atmosphere Research Satellite (UARS) are presented, in both vertically resolved and column abundance formats. The authors review the zonal-mean ...