Summary
We show, on the basis of meteorological records, that certain spatial and time-dependent cycles exist in the earth-atmosphere system (EAS). These cycles seem to be associated with sunspot cycles and hence have been referred to in the text as “data-derived solar cycles”. Our analysis establishes three important characteristics of the data-derived solar cycles (DSC's). Firstly the crests and troughs of these data-derived solar cycles are mostly latitudinally aligned and have (zonal) spatial wavelengths greater than about 7 degrees of longitude. Secondly the DSC's have periods mostly lying between 6 and 12 years. In certain stations, some DSC's coincide quite well with the corresponding sunspot cycles. Thirdly the crests and troughs of the DSC's drift eastwards at speeds exceeding about 1.5 longitude degrees per year. Furthermore, these DSC's display peak-to-peak amplitudes of about 2°C along East Africa. On the basis of earlier work and bearing in mind the considerable temperature-dependence of the stratospheric ozone layer, we predict the existence of latitudinally aligned enhancement and depletion structures (corresponding to the DSC's) in the stratospheric ozone layer over nonpolar regions. These structures apparently connect the two polar ozone holes.
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E. C. Njau:Nuovo Cimento C,12, 597 (1989).
E. C. Njau: inProceedings of an International Conference on “Global Warming and Climatic Change,” Nairobi, Kenya (2–5 May 1990) (in press).
E. C. Njau:Proc. Indian. Nat. Sci. Acad. C,60(1990) (in press).
E. C. Njau:Nuovo Cimento C,12, 487 (1989).
J. K. Hargreaves:The Upper Atmosphere and Solar-Terrestrial Relations (Van Nostrand Reinhold Company, New York, N.Y., 1979), chapt. 11.
E. C. Njau:An analytical model for climatic predictions, submitted toNuovo Cimento C.
E. C. Njau:Physical processes responsible for ENSOevents, submitted toNuovo Cimento C.
E. C. Njau: to be published.
C. E. Junge:Air Chemistry and Radioactivity (Academic Press, New York, N.Y., 1963), chapt. 1.
T. Beer:The Aerospace Evironment (Wykeham Publications Ltd., London, 1976), chapt. 2.
E. C. Njau:On the theory of polar ozone holes, submitted toNuovo Cimento C.
D. H. Mcintosh andA. S. Thom:Essentials of Meteorology (Wykeham Publications Ltd., London, 1969), p. 25.
E. C. Njau:Nuovo Cimento C,14, 473 (1991).
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Njau, E.C. Sun-controlled spatial and time-dependent cycles in the climatic/weather system. Il Nuovo Cimento C 15, 17–23 (1992). https://doi.org/10.1007/BF02507767
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DOI: https://doi.org/10.1007/BF02507767