Correlation analysis between the sunspots and the Nile flood

Authors

  • M. A. MOSALLAM SHALTOUT
  • M. T. Y. TADROS

DOI:

https://doi.org/10.54302/mausam.v41i4.2784

Abstract

The analysis of the cross-relation between the time series of the annual mean value of sunspot number Rz with:

 

(a) The annual value of the maximum Nile flood for the period (1748-1914),

 

(b) The annual value of the difference of the old water and maximum Nile flood for the same period are carried out.

 

Also, the direct and the cross-correlation between the annual mean value of Rz with the following have been done:

 

(a) The annual value of rainfall in mm of Addis Ababa at Ethiopian high lands for the period (1900-1959),

 

(b) The annual value of the discharge of Albert lake (one of the white Nile sources) for the period (1904-1957), and

 

The annual value of the Nile discharge at Aswan (in Egypt) in 109 m3, for the period (1870-1960). The results indicate that the direct correlation coefficients are weak. But the cross-correlation show close to the eleven-year cycle of the sunspots.

 

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Published

01-10-1990

How to Cite

[1]
M. A. M. . SHALTOUT and M. T. Y. . TADROS, “Correlation analysis between the sunspots and the Nile flood”, MAUSAM, vol. 41, no. 4, pp. 55–58, Oct. 1990.

Issue

Vol. 41 No. 4 (1990): Mausam

Section

Shorter Contribution

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