Rainfall trend detection in Northern Nigeria over the period of 1970-2012
This study examined the trends in variability and spatial distribution of annual rainfall over northern Nigeria during the period 1970-2012 with a view to understand the pattern of rainfall trend (significance and magnitude), by applying various statistical tools on the data obtained from 11 weather...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
International Institute for Science, Technology & Education
2015
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| Online Access: | http://psasir.upm.edu.my/id/eprint/46074/1/Rainfall%20trend%20detection%20in%20Northern%20Nigeria%20over%20the%20period%20of%201970-2012.pdf |
| _version_ | 1796974615045603328 |
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| author | Bose, Mahmud Mohammad Abdullah, Ahmad Makmom Kasim, I. Mande, Kato Hosea Abdullahi, A. C. |
| author_facet | Bose, Mahmud Mohammad Abdullah, Ahmad Makmom Kasim, I. Mande, Kato Hosea Abdullahi, A. C. |
| author_sort | Bose, Mahmud Mohammad |
| collection | UPM |
| description | This study examined the trends in variability and spatial distribution of annual rainfall over northern Nigeria during the period 1970-2012 with a view to understand the pattern of rainfall trend (significance and magnitude), by applying various statistical tools on the data obtained from 11 weather stations. The non-parametric Mann– Kendall test was used to determine the statistical significance of trends while the magnitude of trends was derived from the Sen slope estimator of the linear trends using Kendall robust line fitting. Map of rainfall trends was generated by applying a geo-statistical interpolation technique to visualize the detected tendencies. The findings revealed that a significant positive increase of 2.16mm in rainfall was recorded in the entire northern Nigeria within the period of 1970 to 2012. It further indicated that majority of the stations revealed an upward trend, with Bauchi, Borno, Kebbi and Sokoto stations showing significant positive trends of 8.13mm, 4.30mm, 4.76mm and 4.42mm respectively. It is concluded that there is high variability in rainfall in the northern Nigeria which signifies a clear evidence of climate change in the region. |
| first_indexed | 2024-03-06T08:59:37Z |
| format | Article |
| id | upm.eprints-46074 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T08:59:37Z |
| publishDate | 2015 |
| publisher | International Institute for Science, Technology & Education |
| record_format | dspace |
| spelling | upm.eprints-460742022-03-23T08:31:16Z http://psasir.upm.edu.my/id/eprint/46074/ Rainfall trend detection in Northern Nigeria over the period of 1970-2012 Bose, Mahmud Mohammad Abdullah, Ahmad Makmom Kasim, I. Mande, Kato Hosea Abdullahi, A. C. This study examined the trends in variability and spatial distribution of annual rainfall over northern Nigeria during the period 1970-2012 with a view to understand the pattern of rainfall trend (significance and magnitude), by applying various statistical tools on the data obtained from 11 weather stations. The non-parametric Mann– Kendall test was used to determine the statistical significance of trends while the magnitude of trends was derived from the Sen slope estimator of the linear trends using Kendall robust line fitting. Map of rainfall trends was generated by applying a geo-statistical interpolation technique to visualize the detected tendencies. The findings revealed that a significant positive increase of 2.16mm in rainfall was recorded in the entire northern Nigeria within the period of 1970 to 2012. It further indicated that majority of the stations revealed an upward trend, with Bauchi, Borno, Kebbi and Sokoto stations showing significant positive trends of 8.13mm, 4.30mm, 4.76mm and 4.42mm respectively. It is concluded that there is high variability in rainfall in the northern Nigeria which signifies a clear evidence of climate change in the region. International Institute for Science, Technology & Education 2015 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/46074/1/Rainfall%20trend%20detection%20in%20Northern%20Nigeria%20over%20the%20period%20of%201970-2012.pdf Bose, Mahmud Mohammad and Abdullah, Ahmad Makmom and Kasim, I. and Mande, Kato Hosea and Abdullahi, A. C. (2015) Rainfall trend detection in Northern Nigeria over the period of 1970-2012. Journal of Environment and Earth Science, 5 (2). pp. 94-100. ISSN 2224-3216; ESSN: 2225-0948 https://www.iiste.org/Journals/index.php/JEES/article/view/19465 |
| spellingShingle | Bose, Mahmud Mohammad Abdullah, Ahmad Makmom Kasim, I. Mande, Kato Hosea Abdullahi, A. C. Rainfall trend detection in Northern Nigeria over the period of 1970-2012 |
| title | Rainfall trend detection in Northern Nigeria over the period of 1970-2012 |
| title_full | Rainfall trend detection in Northern Nigeria over the period of 1970-2012 |
| title_fullStr | Rainfall trend detection in Northern Nigeria over the period of 1970-2012 |
| title_full_unstemmed | Rainfall trend detection in Northern Nigeria over the period of 1970-2012 |
| title_short | Rainfall trend detection in Northern Nigeria over the period of 1970-2012 |
| title_sort | rainfall trend detection in northern nigeria over the period of 1970 2012 |
| url | http://psasir.upm.edu.my/id/eprint/46074/1/Rainfall%20trend%20detection%20in%20Northern%20Nigeria%20over%20the%20period%20of%201970-2012.pdf |
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