Abstract: The major stratospheric warming of December 1967?January 1968, which reached its peak nearly 1 mo earlier in the winter than any other major warming of record, is compared with other stratospheric warming events, especially ...

Abstract: The observed geopotential heights and temperatures (corrected for radiation effects) at the 100-, 50-, 30-, and 10-mb levels from most of the Northern Hemisphere radiosonde stations were compared with objectively analyzed ...

Abstract: The vertical structure of traveling planetary-scale waves is investigated using spherical harmonics of the geopotential field at levels from 1000 mb. to 10 mb., obtained from ESSA analyses. Fluctuations of the large-scale ...

Abstract: Daily 50- and 10-mb. height and temperature values for 3 yr. (1964?1966) are interpolated for specific locations from objectively analyzed charts. Time sections are constructed using these values, and the relationship of ...

Abstract: The satellite infrared spectrometer aboard Nimbus 3 has provided a new source of temperature data and height data for the atmosphere. Problems of applying these data in synoptic stratospheric analysis are briefly reviewed. ...

Abstract: Two indices are proposed that characterize and quantify the circulation and temperature fields at stratospheric constant-pressure levels. The circulation index is calculated at 60° N. latitude as a normalized difference ...

Abstract: The usefulness of Nimbus 4 satellite infrared spectrometer (SIRS)-derived temperature and height data for constant-pressure analyses at stratospheric levels is investigated by comparing SIRS data with rawinsonde observations ...