Bathymetric Survey and Topography Changes Investigation of Part of Badagry Creek and Yewa River, Lagos State, Southwest Nigeria

Badejo, Olusegun Temitope; Adewuyi, Gbola Kehinde

doi:10.9734/jgeesi/2019/v22i430153

Cited by 3 publications

(4 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is the largest of the three sites, spreading over 12 hectares, with a significant portion yet to be filled up. It is bordered by a government hospital, and approximately 350 -400 scavengers work onsite, sorting out shoes, plastics, glass, scrap, and e-waste for sale to traders [28]. Due to the vulnerable sandy formations of the ground, leachate flows to the groundwater, causing contamination and rendering water unsuitable for human consumption.…”

Section: Solous Dumpsite Nigeriamentioning

confidence: 99%

“…Furthermore, according to a report by Temitope [28] in Premium Times Newspaper, many scavengers not only work but also spend their nights at the landfills, creating a unique community that thrives amidst waste. These landfills, receiving about 4,000 tonnes of waste daily, are the second-largest landfill complex in Lagos, surpassed only by the Olusosun dumpsite in Ojota.…”

Section: Solous Dumpsite Nigeriamentioning

confidence: 99%

See 1 more Smart Citation

Assessing the Environmental and Health Implications of Waste Disposal: A Case Study of Africa's Largest Dumping Site

Omokaro,

Michael,

Evgenievich

2024

JGEESI

View full text Add to dashboard Cite

This study investigates the environmental and health repercussions of generated and distributed waste stemming from dumpsites scattered across various Sub-Saharan Africa countries. Through a comprehensive examination of data gleaned from scholarly databases, published reports, to analyze the characteristics and impacts of dumpsites on the environment and public health; key findings illuminate the profound challenges posed by these dumpsites. Notably, large dumpsites such as Olusosun in Nigeria, Dandora in Kenya, and Agbogbloshie in Ghana emerge as focal points due to their staggering size and heightened risk profiles and the significant risk to nearby communities. The analysis underscores pervasive issues including air and water contamination, soil degradation, and the propagation of diseases within nearby communities. There are indications of progress and improvements being made in some dumpsites, and initiatives such as waste-to-energy projects, recycling programs, and community-driven interventions are emerging to address these challenges and mitigate the adverse effects of dumpsites on surrounding environments and human health. Considering these findings, recommendations are put forth for bolstering waste management strategies, advocating for meticulous site selection, promoting waste segregation practices, and fostering community engagement. These measures are essential to mitigate the adverse effects of dumpsites, safeguard environmental integrity, and uphold public health standards across the African continent.

show abstract

Section: Solous Dumpsite Nigeriamentioning

confidence: 99%

Section: Solous Dumpsite Nigeriamentioning

confidence: 99%

Assessing the Environmental and Health Implications of Waste Disposal: A Case Study of Africa's Largest Dumping Site

Omokaro,

Michael,

Evgenievich

2024

JGEESI

View full text Add to dashboard Cite

show abstract

“…Bathymetry and topography surveys are preferable approaches to determine the bulk of sediment deposits in dams (Carvalho 1999;Chung et al 2009;Estigoni et al 2014;Girish et al 2014;Ibrahim and Sternberg, 2021). Understanding dam bathymetry is critical for reservoir and environmental monitoring (Conner and Tonia 2014), with a coincident delineation of the shoreline at the instant of the survey (Khattab et al 2017;Temitope and Kehinde 2019). Moreover, continuous and repeated observations are required to effectively impute the changes (Chia-yu et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Modelling topo-bathymetric surface using a triangulation irregular network (TIN) of Tunga Dam in Nigeria

et al. 2022

View full text Add to dashboard Cite

Dams are built to store the water flowing from upstream to downstream. Sedimentation and siltation are some of the major problems affecting the storage capacity of dams. For effective management, bathymetric and topographic data are used to assess this challenge. In the Mambila Plateau of Taraba, Nigeria, the Tunga Dam is a multifunctional reservoir that serves as a small hydropower, irrigation and domestic use dam. Nonetheless, it is not operating to its full potential, leading to issues such as frequent stoppage of the turbine, low irrigation activities and a shortage of water supply for domestic use. To determine the basin’s approximate present volume, a topographic and bathymetric survey was conducted using a differential global positioning system (DGPS)-Hi-Target V30 and a single beam echosounder to acquire the real-time data. The data were processed, and the digital elevation model (DEM) of the study area was modelled using a triangulation irregular network algorithm (TIN). The deepest point of the dam was found to be 21.25 m, and the volumetric capacity was assessed based on the elevations. The tessellation data format adequately represents the reservoir DEM for future purposes to better enhance the reservoir capacity. Hence, the research suggested that dredging should be carried out to boost the basin’s capacity. Likewise, an embankment can be constructed around the dam to enhance the basin’s storage capacity. The dredged material can be used to achieve the barrier’s building, which will reduce the overall cost.

show abstract

“…This menace, caused by sediment from the catchment area being trapped as a result of the constructed embarkment around the dam, "is most notably at the dam axis" [5,6]. Investigating the amount of deposited sediment or the reservoir capacity at any moment is only possible through a bathymetric survey, and a coinciding delineation of the shoreline, at the time of the survey [7,8]. The bulk of this material reduces the volumetric content, thereby causing a shortage of supplies [9].…”

Section: Introductionmentioning

confidence: 99%

Bathymetric Survey for Enhancing the Volumetric Capacity of Tagwai Dam in Nigeria via Leapfrogging Approach

Ibrahim

Sternberg

2021

Geomatics

View full text Add to dashboard Cite

From a global perspective, dams are constructed to trap water flowing from a higher concentra-tion to a lower concentration into a basin for several purposes to aid humanity. The continuous monitoring of dams is prudent for measuring the rate of sedimentation and siltation, and to en-sure that it functions to its full capacity. The Tagwai dam is used for irrigation and domestic ac-tivities. It was observed that there is a shortage in its storage capacity and supplies due to sedi-mentation, and coupled with this is the fact that the majority of the communities are not con-nected to the tap water system; if not, the problem would have been evidently pronounced. However, to determine the present volume of water and provide possible ways of increasing the reservoir’s storage capacity, the leapfrogging approach was used to improve the basin. The data were collected using a single beam echosounder and Hi-Target V30 differential global positioning system (DGPS). The sounder was used to acquire bathymetric data, while the DGPS was used to delineate the shoreline. The data were interpolated using the ordinary Kriging technique. After that, the leapfrogging method was grouped into four scenarios: Scenario A, B, C, and D. In each stage, the volume was computed using Simpson’s 3/8 integrated model. Scenario A is the present stage of the reservoir. Consequently, the results show that, while scenario B and C presented an appreciable increase in volume at the instant, scenario D illustrated a tremendous improvement in the storage capacity, and it is a win-win situation. The decision on which leapfrogging approach to employ depends on the government’s willingness to enhance the reservoir’s capacity and the resources available, such as human and financial capital to execute the project.

show abstract

Bathymetric Survey and Topography Changes Investigation of Part of Badagry Creek and Yewa River, Lagos State, Southwest Nigeria

Cited by 3 publications

References 11 publications

Assessing the Environmental and Health Implications of Waste Disposal: A Case Study of Africa's Largest Dumping Site

Assessing the Environmental and Health Implications of Waste Disposal: A Case Study of Africa's Largest Dumping Site

Modelling topo-bathymetric surface using a triangulation irregular network (TIN) of Tunga Dam in Nigeria

Bathymetric Survey for Enhancing the Volumetric Capacity of Tagwai Dam in Nigeria via Leapfrogging Approach

Contact Info

Product

Resources

About