Analysis of Empirical Rainfall Data Covering 1979-2020 as a Guide to Agriculture and Water Resources Management in Ondo State, Nigeria

E. Audu, S. D. Francis, A. S. Abubakar, M. A. Emigilati, H. Audu
{"title":"Analysis of Empirical Rainfall Data Covering 1979-2020 as a Guide to Agriculture and Water Resources Management in Ondo State, Nigeria","authors":"E. Audu, S. D. Francis, A. S. Abubakar, M. A. Emigilati, H. Audu","doi":"10.4314/jasem.v27i11.34","DOIUrl":null,"url":null,"abstract":"The aim of this paper was to evaluate daily empirical rainfall data covering 1979-2020 as a guide to agriculture and water resources management in Ondo, State, Nigeria by collecting data from the Nigerian Meteorological Agency, Abuja, using various standard methods. Results showed that, the area observed rainfall throughout the year with March (86.4 mm) as the rainfall onset, November (56.4 mm) was the cessation, double maximum rainfall occurred in July (254.2 mm) and September (282.1 mm) with the climatological mean of 1752.2 mm. Also, the percentage (%) difference rainfall showed seven (7) positive and four (4) negative occurrences. The highest positive % difference occurred in September (10.4), while the lowest occurred in July (2.6). The highest negative % difference was -26.5 (November), while the lowest was -5.9 (August). The stations deviation from zonal average monthly rainfall showed that, Igbokoda, Ilaje LGA deviated in all the months negatively, while Okitipupa, Okitipupa LGA and Oka-Akoko, Akoko South West LGA deviated positively in eleven (11) months each. The study concluded that, rainfall varied and had declined generally over the study area. Hence, it was recommended that, the Seasonal Climate Prediction (SCP) by Nigerian Meteorological Agency (NiMet) should be down-scaled early to serve as a guide to farmers and hydrologists; irrigation should be encouraged; hybrid crops should be cultivated and more water reservoirs should be constructed.","PeriodicalId":15093,"journal":{"name":"Journal of Applied Sciences and Environmental Management","volume":"30 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Applied Sciences and Environmental Management","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.4314/jasem.v27i11.34","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

Abstract

The aim of this paper was to evaluate daily empirical rainfall data covering 1979-2020 as a guide to agriculture and water resources management in Ondo, State, Nigeria by collecting data from the Nigerian Meteorological Agency, Abuja, using various standard methods. Results showed that, the area observed rainfall throughout the year with March (86.4 mm) as the rainfall onset, November (56.4 mm) was the cessation, double maximum rainfall occurred in July (254.2 mm) and September (282.1 mm) with the climatological mean of 1752.2 mm. Also, the percentage (%) difference rainfall showed seven (7) positive and four (4) negative occurrences. The highest positive % difference occurred in September (10.4), while the lowest occurred in July (2.6). The highest negative % difference was -26.5 (November), while the lowest was -5.9 (August). The stations deviation from zonal average monthly rainfall showed that, Igbokoda, Ilaje LGA deviated in all the months negatively, while Okitipupa, Okitipupa LGA and Oka-Akoko, Akoko South West LGA deviated positively in eleven (11) months each. The study concluded that, rainfall varied and had declined generally over the study area. Hence, it was recommended that, the Seasonal Climate Prediction (SCP) by Nigerian Meteorological Agency (NiMet) should be down-scaled early to serve as a guide to farmers and hydrologists; irrigation should be encouraged; hybrid crops should be cultivated and more water reservoirs should be constructed.
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
分析 1979-2020 年的经验降雨量数据,为尼日利亚翁多州的农业和水资源管理提供指导
本文旨在通过使用各种标准方法从阿布贾的尼日利亚气象局收集数据,评估 1979-2020 年期间的每日降雨量经验数据,为尼日利亚翁多州的农业和水资源管理提供指导。结果表明,该地区全年降雨量为 3 月(86.4 毫米),11 月(56.4 毫米),7 月(254.2 毫米)和 9 月(282.1 毫米)降雨量最大,气候学平均值为 1752.2 毫米。此外,降雨量差异百分比(%)显示出现了七(7)次正差异和四(4)次负差异。最高的正百分比差异出现在 9 月(10.4),最低的出现在 7 月(2.6)。最大负偏差为-26.5%(11 月),最小为-5.9%(8 月)。各站月平均降雨量与区域平均降雨量的偏差显示,伊拉杰地方行政区的伊格博科达在所有月份都出现负偏差,而奥基蒂普帕地方行政区的奥基蒂普帕和阿科科西南地方行政区的奥卡-阿科科则各有十一(11)个月出现正偏差。研究得出的结论是,研究地区的降雨量各不相同,而且普遍下降。因此,建议尽早缩小尼日利亚气象局(NiMet)的季节气候预测(SCP),以便为农民和水文学家提供指导;鼓励灌溉;种植杂交作物并修建更多水库。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
自引率
0.00%
发文量
0
期刊最新文献
Assessing the Potential of Parkia biglobosa (Jacq.) R.Br. ex. G. Don - A Leguminous Plant Species commonly found in Nigeria to Decontaminate Crude Oil-polluted Soil in Terrestrial Ecosystem Towards a Reduced Pollution Society: Systematic Review on the Role of Storytelling, Social Media, Humor and Celebrities’ Influence for Research Communication Remediation of Brewery Wastewater Using Green Synthesized Nano-Particles Comparative Reports on Pleurotus Sajor-caju Cultivated on Local Wood Wastes in Ibadan Metropolis, Nigeria Analysis of Heavy Metals and Gene Expression of African Arowana Fish (Heterotis niloticus) obtained from Igbalegbe River, Ughelli, Delta State, Nigeria
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1