Drainage Basin Morphometric Analysis for Flood Potential Mapping in Owu Using Geospatial Techniques

Samson, S. A.; Eludoyin, Adebayo Oluwole; Ogbole, John; Alaga, A; Oloko-Oba, Mustapha; Okeke, Uche; Popoola, Oladimeji Samuel

doi:10.9734/jgeesi/2016/22223

Cited by 6 publications

(3 citation statements)

References 9 publications

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“…The SRTM DEM was used for the generation of the slope map and to produce hillshade regions along the catchment boundary. To study the catchment surface forms and their importance, these quantitative approaches of slope evaluation were used [8]. SAC hydro model, developed by Space Application Centre, Ahmedabad, provided daily average and accumulated discharge and rainfall data for India at a 5 km resolution.…”

Section: Datasetsmentioning

confidence: 99%

Integrated Hydrological Modelling over Upstream Catchments of Himalayan Rivers and Assessment of Hydrological Events in Tehri Dam and Srinagar Catchments

Sivashankari

Dubey

Priyadarshini

et al. 2019

The 2nd International Electronic Conference on Geosciences

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Flash floods in the Himalayan Rivers result in hundreds of deaths causing a sudden hazard in a minimum period of time. These hydrological events of mostly happen due to cloudburst incidents in the Indian Himalayas, with an unexpected heavy overwhelming of precipitation in a short interval over a small region. These extreme hydrological events are assessed through the analytical hierarchy process for the upper stream catchments of Tehri Dam and Srinagar. The morphometry characteristics of these catchments are collaboratively integrated with the SAC (Space Application Centre) hydro simulated discharge and rainfall data to identify the flash-flood-vulnerable hazard region over the surrounding catchment regions.

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Section: Datasetsmentioning

confidence: 99%

Integrated Hydrological Modelling over Upstream Catchments of Himalayan Rivers and Assessment of Hydrological Events in Tehri Dam and Srinagar Catchments

Sivashankari

Dubey

Priyadarshini

et al. 2019

The 2nd International Electronic Conference on Geosciences

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“…In Nigeria, river basins that have received attention include Yedzaram catchment (Martins and Gadiga, 2015), Calabar River Basin (Eze and E ong, 2010), Ogbere and Ogunpa Basins (Ajibade et al, 2010), Upper Mamu River Basin (Olisa, 2014). Nyaba River Basin (Uzor, 2015), Obe River Basin (Nwafor, 2014), Lamurde River Basin (Oruonye et al, 2016) Upper Yedzaram River Basin (Adegoke and Bulus, 2015), Owu Basin (Samson et al, 2016) Osun River Basin (Damilola, 2016), Lower Niger River Basin (Salami et al, 2016), and Oguta Basin (Udoka et al, 2016) One of the best things that have happened in river basin characterization is the adaptation and accurate application of geographic information system (GIS) and remote sensing to a very complex and dynamic system. A combination of remote sensing and GIS affords accurate morphometric characterization of River basins (Sarma et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Hydrological and Morphometric Characterization of Anambra-Imo River Basin Using Remote Sensing

Nnaji,

Onyekachi,

Nwankwo

et al. 2024

Water Conserv Sci Eng

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Environmental problems related to ooding, water management and landslide often emanate from disruption of river basin within a geographical locality. In this study, the Anambra-Imo River Basin which drains the ve southeastern states of Nigeria and a part of Kogi State in the northcentral was studied by combining the remote sensing technique and GIS. With the aid of digital Elevation Model (DEM) of the geographical region, the linear and spatial morphometric attributes of the basins such as Drainage density (Dd), Drainage texture (Dt), Circularity ratio (Rc), Elongation ratio (Re), Constant of channel maintenance (Cm), Form factor (Rf), In ltration number (If), Stream frequency (Sf), Length of overland ow (Lo), and Compactness index (Ci) were obtained. The results of the analysis showed that the basins have a well-developed dendritic and parallel type drainage pattern with a NE-SW orientation suggesting a relationship between fracture orientation and physographic features. Anambra Basin is a 6th order basin having a total of 1462 streams with a length of 13682.9 km; while Imo River Basin is a 5th oreder basin having a total of 208 streams with a ttal length of 1320.57 km. Morphometric analyses yielded an in ltration number of 0.3 and 0.11, elongation ratio of 0.35 and 0.29, form factors of 0.26 and 0.54; compactness index of 1.4 and 1.06; length of overland ow of 0.46 and 2.18; Circularity ration of 0.49 and 0.84; constant of channel maintenance given of 0.93 and 4.34; Relief ratio of 0.61 and 0.35; and ruggedness number of 0.19 and 1.5 for Anambra and Imo river basin respectively. These results have thrown light on the underlying factors responsible to ooding and gullying in the study area as a combination of climatic and geological characteristics of the study area.

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Section: Introductionmentioning

confidence: 99%

Hydrological and Morphometric Characterization of Anambra-Imo River Basin Using Remote Sensing

Nnaji,

Onyekachi,

Nwankwo

et al. 2023

Preprint

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Environmental problems related to flooding, water management and landslide often emanate from disruption of river basin within a geographical locality. In this study, the Anambra-Imo River Basin which drains the five southeastern states of Nigeria and a part of Kogi State in the northcentral was studied by combining the remote sensing technique and GIS. With the aid of digital Elevation Model (DEM) of the geographical region, the linear and spatial morphometric attributes of the basins such as Drainage density (Dd), Drainage texture (Dt), Circularity ratio (Rc), Elongation ratio (Re), Constant of channel maintenance (Cm), Form factor (Rf), Infiltration number (If), Stream frequency (Sf), Length of overland flow (Lo), and Compactness index (Ci) were obtained. The results of the analysis showed that the basins have a well-developed dendritic and parallel type drainage pattern with a NE-SW orientation suggesting a relationship between fracture orientation and physographic features. Anambra Basin is a 6th order basin having a total of 1462 streams with a length of 13682.9 km; while Imo River Basin is a 5th oreder basin having a total of 208 streams with a ttal length of 1320.57 km. Morphometric analyses yielded an infiltration number of 0.3 and 0.11, elongation ratio of 0.35 and 0.29, form factors of 0.26 and 0.54; compactness index of 1.4 and 1.06; length of overland flow of 0.46 and 2.18; Circularity ration of 0.49 and 0.84; constant of channel maintenance given of 0.93 and 4.34; Relief ratio of 0.61 and 0.35; and ruggedness number of 0.19 and 1.5 for Anambra and Imo river basin respectively. These results have thrown light on the underlying factors responsible to flooding and gullying in the study area as a combination of climatic and geological characteristics of the study area.

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Drainage Basin Morphometric Analysis for Flood Potential Mapping in Owu Using Geospatial Techniques

Cited by 6 publications

References 9 publications

Integrated Hydrological Modelling over Upstream Catchments of Himalayan Rivers and Assessment of Hydrological Events in Tehri Dam and Srinagar Catchments

Integrated Hydrological Modelling over Upstream Catchments of Himalayan Rivers and Assessment of Hydrological Events in Tehri Dam and Srinagar Catchments

Hydrological and Morphometric Characterization of Anambra-Imo River Basin Using Remote Sensing

Hydrological and Morphometric Characterization of Anambra-Imo River Basin Using Remote Sensing

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