Monthly to Inter-decadal Rainfall Variability of the Southern Regional State of Ethiopia, Links with El Nino-Southern Oscillation

Monthly to Inter-decadal Rainfall Variability of the Southern Regional State of Ethiopia, Links with El Nino-Southern Oscillation

Solomon Gunta

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Busnur Manjunatha

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H. Gangadhara Bhat

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α Mangalore University

Monthly to Inter-decadal Rainfall Variability of the Southern Regional State of Ethiopia, Links with El Nino-Southern Oscillation

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Abstract

In developing countries, such as, Ethiopia, rainfall is the crucial factor for determining Gross domestic product (GDP). In this study, different types of statistical analysis were performed to understand the reasons behind the rainfall variability from monthly to inter decadal levels during 1981 to 2017. With the exception to rainfall from December to March, although not statistically significant, increasing trends have been noticed during most of months. During the El Niño, a greater reduction in the summer season’s rainfall Kiremt (June to September) noticed, whereas, enhancement during the end of winter to spring season Belg (February to May) observed. In contrast, during La Nina an increasing trend observed for the Kiremt, but decreasing trend observed for both Belg and Bega (October to January). Most of these changes indicate the role of Tropical Pacific Ocean’s sea surface temperature (SST) coupled with atmospheric circulation regulating principally the rainfall of the study area.

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Funding

No external funding was declared for this work.

Conflict of Interest

The authors declare no conflict of interest.

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How to Cite This Article

Solomon Gunta. 2019. \u201cMonthly to Inter-decadal Rainfall Variability of the Southern Regional State of Ethiopia, Links with El Nino-Southern Oscillation\u201d. Global Journal of Science Frontier Research - H: Environment & Environmental geology N/A (GJSFR Volume 19 Issue H2): .

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GJSFR Volume 19 Issue H2
Pg. 13- 31

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Journal Specifications

Crossref Journal DOI 10.17406/GJSFR

Print ISSN 0975-5896

e-ISSN 2249-4626

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GJSFR-H Classification: FOR Code: 040699

Submission ReceivedMay 10, 2019
Peer Review Double Blind
Handling Editor
Accepted June 8, 2019
Published June 23, 2019

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v1.2

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July 23, 2019

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Article Matrices

Total Score: 73

Country: Ethiopia

Subject: Global Journal of Science Frontier Research - H: Environment & Environmental geology

Authors: Solomon Gunta, Busnur Manjunatha, H. Gangadhara Bhat (PhD/Dr. count: 0)

View Count (all-time): 148

Total Views (Real + Logic): 2705

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Publish Date: 2019 07, Tue

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Total Downloads: 1234

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