Spatial variation of deterministic chaos in mean daily temperature and rainfall over Nigeria
 /  Spatial variation of deterministic chaos in mean daily temperature and rainfall over Nigeria

Spatial variation of deterministic chaos in mean daily temperature and rainfall over Nigeria


I. A. Fuwape, S. T. Ogunjo, S. S. Oluyamo, A. B. Rabiu

ABSTRACT

Daily rainfall and temperature data from 47 locations across Nigeria for the 36-year period 1979–2014 were treated to time series analysis technique to investigate some nonlinear trends in rainfall and temperature data. Some quantifiers such as Lyapunov exponents, correlation dimension, and entropy were obtained for the various locations. Positive Lyapunov exponents were obtained for the time series of mean daily rainfall for all locations in the southern part of Nigeria while negative Lyapunov exponents were obtained for all locations in the Northern part of Nigeria. The mean daily temperature had positive Lyapunov exponent values (0.35–1.6) for all the locations. Attempts were made in reconstructing the phase space of time series of rainfall and temperature.

Journal Article
PDF, 137.2 KB
Creative Commons LicenseCreative Commons license
Physical Sciences
Physics
Entropy Rainfall Temperature ITD Climate Lyapunov exponent Correlation dimension Tropics
Christian Bassey
17th April, 2018
17th April, 2018
http://oer.mciu.edu.ng/wp-content/uploads/2015/04/PROF-I.-FUWAPE-SPATIAL-VARIATION-OF-DETERMINISTIC-CHAOS.pdf


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