Urban flood event and associated damage in the Benue valley, Nigeria

T. E. Ologunorisa (), O. Obioma () and A. O. Eludoyin ()
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T. E. Ologunorisa: Federal University of Technology
O. Obioma: Federal University of Technology
A. O. Eludoyin: Obafemi Awolowo University

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2022, vol. 111, issue 1, No 12, 282 pages

Abstract: Abstract Flooding events in the Lower Benue valley of Nigeria are often associated with huge damage to properties and loss of life in the adjoining communities. Specific objectives of this study were to (i) examine the characteristics of rainfall and discharge at the major river in the study area—Benue trough of Nigeria; (ii) assess the occurrence of extreme rainfall conditions and other flood-triggering/exacerbating factors; and (iii) determine flood damage extent and available warning system in the area. Specific reference was made to the 2017 flood event in the area. Method used was an integrated environmental approach that combines analysis of rainfall and discharge data with social surveys, remote sensing and geographical information system. Standardized Precipitation Index (SPI), Precipitation Concentration Index (PCI) as well as flood damage curves were analysed with land use/cover change and soil data to establish the nature of the flood and its impacts. Result showed that rainfall has increased in the study area in October–December and February (b ≤ 0.13) but has decreased in the other months, albeit insignificantly (R2

Keywords: Recurring flood disasters; Flood damage; Poor and vulnerable communities; Response strategies (search for similar items in EconPapers)
Date: 2022
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DOI: 10.1007/s11069-021-05052-6

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