Paper Title :Trend Analysis of Rainfall Data in Wolaita Zone, Southern Regional State of Ethiopia
Author :Solomon Gunta, Gangadhara Bhat
Article Citation :Solomon Gunta ,Gangadhara Bhat ,
(2018 ) " Trend Analysis of Rainfall Data in Wolaita Zone, Southern Regional State of Ethiopia " ,
International Journal of Advances in Science, Engineering and Technology(IJASEAT) ,
pp. 45-56,
Volume-6, Issue-4, Spl. Iss-1
Abstract : The aim of this study was to investigate the monthly, seasonal and annual rainfall variability in Wolaita Zone,
Ethiopia. Standard statistical methods were employed to reveal the rainfall departure from the long time mean and its trend
was presented using linear regression equations and graphical methods. The result shows the linear trend lines of the
monthly rainfall shows decreasing trend in December, January, February and March and increasing trend for other months
and annual rainfall data. The p-value computed for the monthly and annual rainfall data shows that, it is greater than
significant level 𝛂 𝟎. 𝟎𝟓, so that the null hypothesis, H0: that, there is no trend in data, is failed to be rejected. This reveals
that there is no statistically significant trend in the data describing the monthly and annual rainfall in Woliata zone. Also for
seasonal rainfall data, the linear regression analysis shows decreasing trend in Belg (FMAM) whereas an increasing trend
has been observed for Kiremt (JJAS) and Bega (ONDJ) seasons.
Keywords - Rainfall Variability, Season, Regression, Trend Analysis, Anomaly, ICTZ, El Nino, La Nina
Type : Research paper
Published : Volume-6, Issue-4, Spl. Iss-1
DOIONLINE NO - IJASEAT-IRAJ-DOIONLINE-14312
View Here
Copyright: © Institute of Research and Journals
|
|
| |
|
PDF |
| |
Viewed - 39 |
| |
Published on 2019-02-01 |
|