Southern Hemisphere Stratospheric Circulation as Indicated by Shipboard Meteorological Rocket Observations

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Abstract
Meteorological data from the NASA Mobile Launch Expedition aboard USNS Croatan are utilized to investigate the early autumn stratospheric circulation of the Southern Hemisphere. Time-height and cross-section analyses indicate the vertical and areal extent of the developing wintertime polar vortex. A comparison is made between this cyclone and that of the Northern Hemisphere at a similar stage of development. Additional sets of analyses illustrate segments of the circulation patterns in both hemispheres along the 78th meridian at the time period of the Croatan observations.