Quasi-Biennial Oscillation (QBO)

Zonally averaged 30mb winds at the equator. The winds have a very strong biennial periodicity (see timeseries plot).


sample plot
Correlation of January NCEP/NCAR Reanaysis 30mb Zonal Winds with the QBO Index. Created with the Atmospheric WRIT Correlation Tool.
sample plot
Times-series from the WRIT Time-series Plotting Tool (center this)
Description
Zonally averaged 30mb winds at the equator. The winds have a very strong biennial periodicity (see timeseries plot).
Temporal Coverage
  • Monthly values: 1948/01 to near present
  • Update Status: Monthly
Data Notes
  • Units: deg m/s
  • Missing data value: -9999.0
Time-series List
Usage Restrictions
  • None
Caveats
  • None
Related Time-series
Links
Original Source
  • Data is from PSL calculated using the monthly mean zonal winds at 30mb.
Time-series source dataset(s)
Citation
References
  • Brewer, A.W., Evidence for a world circulation provided by the measurements of helium and water vapour distribution in the stratosphere, Q. J. R. Meteorol. Soc., 75, 351 - 363, 1949. (seminal paper)