Westerlies, middle-latitude west winds
The term westerlies refers to the zone of winds poleward from the subtropical high-pressure belt, present in both the Northern Hemisphere and Southern Hemisphere, that is characterized by migratory cyclones and anticyclones traveling generally west to east. Usually located poleward from approximately 35°N and S latitude, the westerlies extend much of the remainder of the distance to the poles and are developed to levels exceeding the height of the tropopause.
Energy Sources and Role in the General Circulation
- Klein, W. H., 1957. Principal Tracks and Mean Frequencies of Cyclones and Anticyclones in the Northern Hemisphere, Res. Paper No. 40. Washington, D.C.: Weather Bureau, U.S. Department of Commerce.Google Scholar
- Palmen, E., and C. W. Newton, 1969. Atmospheric Circulation Systems. New York: Academic Press.Google Scholar
- Sellers, W. D., 1965. Physical Climatology. Chicago: University of Chicago Press.Google Scholar
- Smagorinsky, J., 1953. The dynamical influence of largescale heat sources and sinks on the quasi-stationary mean motions of the atmosphere, Royal Meteorol. Soc. Quart. Jour. 79, 342–366.Google Scholar
- Stark, L. P., 1965. Positions of mean monthly troughs and ridges in the Northern Hemisphere, Monthly Weather Rev. 93, 705–720.Google Scholar