TROPICAL UPPER AIR STUDIES. PART I. PERSISTENCE OF THE DAILY STRATOSPHERIC WINDS IN THE TROPICS. PART II. LONG-PERIOD WIND FLUCTUATIONS IN THE TROPICS.
Abstract
The persistence of tropical 50 mb daily wind direction and speed along with the daily zonal component was computed to determine the interval over which a wind observation may be regarded as 'independent'. Monthly means of the zonal component were determined using only 'independent observations' and then compared to monthly means based on all available data. Long period fluctuations of the stratospheric zonal winds in the tropics were examined to describe variations in the observed monthly mean patterns. The quasi-biennial and annual fluctuations account for practically all the observed wind variability; the meridional and vertical variation of the amplitudes as well as the difference in phase propagation downward of each of these two components cause the complex interference patterns that are observed with time at various subtropical and tropical stations. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1964
- Accession Number
- AD0602851
Entities
People
- A. D. Belmont
- D. G. Dartt
- W. C. Shen