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Double Quasi-Biennial Cycles in Observed Winds in the Tropical Stratosphere
Publisher: American Meteorological Society
Abstract: Height-time sections of mean monthly observed upper-air zonal winds at stations within 20 degrees of the equator show not only an almost biennial oscillation of the wind in the middle or upper stratosphere but that there ...
VARIATION WITH LONGITUDE OF THE QUASI-BIENNIAL OSCILLATION
Publisher: American Meteorological Society
Abstract: Daily data at 16 stations along five latitudes from 13°N. to 33°S. were carefully examined at the 50-, 100-, and 500-mb. levels for evidence of longitudinal phase progression of the quasi-biennial oscillation (QBO). At 50 ...
Periodic Variations in Stratospheric-Mesospheric Temperature from 20–65 km at 80°N to 30°S
Publisher: American Meteorological Society
Abstract: The 12-year mean temperature and the amplitude and phase of the quasi-biennial oscillation (QBO) and first three harmonies of the annual wave are presented on height-latitude sections, 20 to 65 km, 80°N to 30°S. New features ...
Diurnal Stratospheric Tide in Meridional Wind, 30 to 60 km by Season
Publisher: American Meteorological Society
Abstract: The diurnal component in meridional wind is estimated for each season at twelve rocket stations. Amplitudes and phases are presented as a function of height-latitude or as vertical profiles. Many of the gross features of ...
The 10.7-cm Solar Flux and the 26-Month Oscillation
Publisher: American Meteorological Society
Abstract: The 10.7-cm solar radio flux is considered to be highly correlated with solar extreme ultraviolet radiation, thermospheric temperatures, sunspots, and the 27-day and 11-year solar cycles. To investigate the possibility of ...
Comparison of 15-μ TIROS VII Data with Radiosonde Temperatures
Publisher: American Meteorological Society
Abstract: Temperatures derived from the 15-? CO2 channel of the radiometer carried aboard the TIROS VII satellite were compared to the radiosonde temperatures at 100, 70, 50, 30, 20 and 10 mb at 97 stations in the Northern Hemisphere ...
Antarctic Stratospheric Warmings During 1963 Revealed by 15-μ TIROS VII Data
Publisher: American Meteorological Society
Abstract: TIROS VII 15-? radiation data were used to study Southern Hemisphere stratospheric warmings during the winter of 1963 over regions which had little conventional data. Three significant warmings could be mapped despite the ...
Variations of Stratospheric Zonal Winds, 20–65 km, 1961–1971
Publisher: American Meteorological Society
Abstract: The observed variability patterns of monthly mean zonal winds over an 11-year period, from 80°N?70°S and from 20?65 km, are explained in terms of component patterns of a long-term mean, quasi-biennial, annual and semi-annual ...
The Seasonal Reversal of the Stratospheric Circulation
Publisher: American Meteorological Society
Abstract: The mean and individual seasonal reversal progressions are described for each of the 11 years of available rocket observations from 80°N to 80°S, and from 20 to 65 km. Isochrone sections were based on the time sections of ...