Observational data from many sources are brought together to form a composite picture of the distribution, from pole to pole and from sea level to the 5-centibar level, of the normal summer and winter zonal winds averaged around the earth.
1 U.C.L.A. Department of Meteorology, Papers in Meteorology, No. 18. The research reported in this paper has been sponsored in part by the Geophysics Research Division, Air Force Cambridge Research Center, under Contract AF 19(122)-48.