Oliver Kadmiel
Got NCE in 2004, Bsc Geography in 2017, Masters Degree in Geo morphology in 2021. Pursuing Ph.D in Hydrology and Water Resource. Published more than 15 research papers.
Supervisors: Prof. Ezekiel Yonanna, prof. A. M. Mubi, and Dr. Hajjatu Tammi and Dr. Maimuna Gambo Hammawa.
Phone: 08060050418
Address: Federal College of Education, Yola.
Supervisors: Prof. Ezekiel Yonanna, prof. A. M. Mubi, and Dr. Hajjatu Tammi and Dr. Maimuna Gambo Hammawa.
Phone: 08060050418
Address: Federal College of Education, Yola.
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Papers by Oliver Kadmiel
Keywords: River Yedzeram, Stream Flow Behaviour,Hydraulic Geometry, Hydro-Morphologic Monitoring, and River turbulence.
Drafts by Oliver Kadmiel
Many researches have been conducted on the action of man on the lower segments as well as on watershed areas of river systems in different parts of the world. However, little attention has been given to the channel morphometric dynamics of the Mubi segment of river Yedzeram, Adamawa State. For that reason, this research work examined the Channel morphometric dynamics of the Mubi to Mayo-Bani segment of river Yedzeram, Adamawa state. The entire study was empirical by approach, involving rigorous field observations and measurements as well as laboratory analyses, remote sensing and GIS applications. Descriptive statistical analysis to show variations in statistical data such as those of different land use areas, rainfall/discharge, human population and, as well as data concerning various human activities, as obtained from map/image analyses, existing records, field measurements, and personal interview were used. Percentage change in channel width between 2006 and 2011 time period indicated that the channel increased by 30. 88%. Between 2011 and 2015, the channel width decreased by 24.77%. Between 2015 and 2019, the channel decreased by 27.64%. Comparing the changes between 2006/2011, and 2011/2015, the channel width increased by 6.11%. At Lokuwa Bridge, the stream turbulence of the channel reach was 48.25. The Froude number of the discharge at 109.75ms-1 velocity was 48.25, the turbulence of the river was rapid (supercritical) because the Froude number was greater than one, the stream power (ω) was 2273.42Jm-2s-2. The stream power was not sufficient to move boulders meters in diameter. At Wuro-Harde in 2019, the stream turbulence of the channel reach was 51.95, the turbulence of the river was rapid (supercritical) because the Froude number was greater than one. The stream power (ω) was 4511.071Jm-2s-2 therefore, it was not sufficient to move boulders meters in diameter. At Mayo-Bani, the stream turbulence of the channel reach was 23.3, since the Froude number of the discharge at 93.4m s-1 velocity was 23.30s-1, the turbulence of the river was rapid (supercritical) because the Froude number was greater than one, the calculated stream power (ω) was 7053.87Jm-2s-2, since the stream power was < 1Jm-2s-1 and > 12,000 Jm-2s-1, it was not sufficient to move boulders meters in diameter. It was suggested that adverse human activities Such as channel reclamation, dumping of solid waste within the channel, and over-cultivation practices within river channel should be minimized. This study contributed to the body of Knowledge through discovering the capabilities and attributes of river Yedzeram at Mubi-Mayo Bani section of the river.
Keywords: River Yedzeram, Stream Flow Behaviour,Hydraulic Geometry, Hydro-Morphologic Monitoring, and River turbulence.
Many researches have been conducted on the action of man on the lower segments as well as on watershed areas of river systems in different parts of the world. However, little attention has been given to the channel morphometric dynamics of the Mubi segment of river Yedzeram, Adamawa State. For that reason, this research work examined the Channel morphometric dynamics of the Mubi to Mayo-Bani segment of river Yedzeram, Adamawa state. The entire study was empirical by approach, involving rigorous field observations and measurements as well as laboratory analyses, remote sensing and GIS applications. Descriptive statistical analysis to show variations in statistical data such as those of different land use areas, rainfall/discharge, human population and, as well as data concerning various human activities, as obtained from map/image analyses, existing records, field measurements, and personal interview were used. Percentage change in channel width between 2006 and 2011 time period indicated that the channel increased by 30. 88%. Between 2011 and 2015, the channel width decreased by 24.77%. Between 2015 and 2019, the channel decreased by 27.64%. Comparing the changes between 2006/2011, and 2011/2015, the channel width increased by 6.11%. At Lokuwa Bridge, the stream turbulence of the channel reach was 48.25. The Froude number of the discharge at 109.75ms-1 velocity was 48.25, the turbulence of the river was rapid (supercritical) because the Froude number was greater than one, the stream power (ω) was 2273.42Jm-2s-2. The stream power was not sufficient to move boulders meters in diameter. At Wuro-Harde in 2019, the stream turbulence of the channel reach was 51.95, the turbulence of the river was rapid (supercritical) because the Froude number was greater than one. The stream power (ω) was 4511.071Jm-2s-2 therefore, it was not sufficient to move boulders meters in diameter. At Mayo-Bani, the stream turbulence of the channel reach was 23.3, since the Froude number of the discharge at 93.4m s-1 velocity was 23.30s-1, the turbulence of the river was rapid (supercritical) because the Froude number was greater than one, the calculated stream power (ω) was 7053.87Jm-2s-2, since the stream power was < 1Jm-2s-1 and > 12,000 Jm-2s-1, it was not sufficient to move boulders meters in diameter. It was suggested that adverse human activities Such as channel reclamation, dumping of solid waste within the channel, and over-cultivation practices within river channel should be minimized. This study contributed to the body of Knowledge through discovering the capabilities and attributes of river Yedzeram at Mubi-Mayo Bani section of the river.