TY  - JOUR
T1  - 22 Years Characterized Trends of Rainfall in Abeokuta, Nigeria
AU - Ishola, Kehinde S. AU - Obot., Nsikan I. AU - Emberga, Terhemba T. 
JO  - Research Journal of Applied Sciences
VL  - 6
IS  - 4
SP  - 264
EP  - 271
PY  - 2011
DA  - 2001/08/19
SN  - 1815-932x
DO  - rjasci.2011.264.271
UR  - https://makhillpublications.co/view-article.php?doi=rjasci.2011.264.271
KW  - Nigeria
KW  -farming
KW  -no significant trend
KW  -Mann-Kendall test
KW  -rainfall
KW  -Abeokuta
AB  - Many processes are dictated by rainfall so the knowledge of 
  the trends of rainfall in the respective localities is very important amidst 
  the concern of the effect of anthropogenic activities. To this end the rainfall 
  trends in terms of cumulative total amount and total number of rain days in 
  Abeokuta (7°15′N, 3°35′E) Nigeria for 22 years (1981-2002) 
  are investigated using the Mann-Kendall non parametric test. The results of 
  the Mann-Kendall Z test for both cumulative total rainfall amount and rainy 
  days are 0.90 and 1.47, respectively. The test values for dry season and raining 
  season partitions of the same period for both parameters are 0.56, 0.45 and 
  0.39, 0.50. All the results even with monthly evaluations at 90% confidence 
  level indicate no significant trend and activities like farming can be carried 
  out in accordance with established rainfall pattern without fear of change, 
  though continues monitoring is advised to detect any possible U-turn. While 
  the yearly cumulative rainfall seemingly does not depend on solar intensity, 
  its seasonal variability is in tune with sun earth distance.
ER  -