Relevant bibliographies by topics / River Oyan

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'River Oyan'

Author: Grafiati
Published: 7 June 2025
Last updated: 2 August 2025

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Journal articles on the topic "River Oyan"

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Ayodeji, Engr Kumolu Olumide, Engr Prof Adedayo Ayodele Adegbola, and Olaniyan Olatunji Sunday. "Spatial and Temporal Variation of Hydrological and Geometrical Parameters Across River Oyan, Ogun State, South Western Nigeria." International Journal of Engineering and Advanced Technology 14, no. 3 (2025): 1–5. https://doi.org/10.35940/ijeat.b4559.14030225.

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Channel erosion and sedimentation are major environmental threats to the sustainability and productive capacity of surface water. Sedimentation poses a significant threat to dam functionality, affecting water storage capacity, structural integrity, and downstream ecosystems. River Oyan has records of yearly flooding and Oyan Dam has drastically reduced in reservoir capacity due to the siltation. There was a paucity of information about erosion and sedimentation studies along the river. Objectives: Therefore, this study aimed to analyze the spatial and temporal variation of hydrological and geo
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Engr., Kumolu Olumide Ayodeji. "Spatial and Temporal Variation of Hydrological and Geometrical Parameters Across River Oyan, Ogun State, South Western Nigeria." International Journal of Engineering and Advanced Technology (IJEAT) 14, no. 3 (2025): 1–5. https://doi.org/10.35940/ijeat.B4559.14030225.

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<strong>Abstract:</strong> Channel erosion and sedimentation are major environmental threats to the sustainability and productive capacity of surface water. Sedimentation poses a significant threat to dam functionality, affecting water storage capacity, structural integrity, and downstream ecosystems. River Oyan has records of yearly flooding and Oyan Dam has drastically reduced in reservoir capacity due to the siltation. There was a paucity of information about erosion and sedimentation studies along the river. Objectives: Therefore, this study aimed to analyze the spatial and temporal variat
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Ipadeola, O. A., S. A. Babalola, A. Babalola, H. I. Ayo-Akano, A. Adedayo, and O. A. Abdulyekeen. "Analysis of Oyan River Channel Changes Using Remote Sensing Technology." Journal of Spatial Information Sciences 2, no. 1 (2025): 176–88. https://doi.org/10.5281/zenodo.14893657.

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This study employs remote sensing technology to analyze river channel changes in Oyan River, Abeokuta North, Ogun State, Nigeria. Understanding and monitoring river dynamics are essential for ecological sustainability and effective water resource management. Remote sensing and GIS techniques provide a cost-effective and efficient approach to assessing these changes. Landsat satellite images (30m resolution) from 2002 to 2023 at three-year intervals were compared and analyzed. &nbsp;Land use land cover, river channel, and river bank erosion maps were produced. The quantity of accretion and eros
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Adejare, Q. A., S. A. Azeez, Q. J. Aderibigbe, and M. B. Adewara. "Bathymetry and Siltation of Oyan Dam, Ogun State, Nigeria." Nigerian Journal of Environmental Sciences and Technology 4, no. 2 (2020): 314–23. http://dx.doi.org/10.36263/nijest.2020.02.0208.

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Dams are reservoirs established for different reasons. Oyan dam, Ogun State, Nigeria was established and commissioned on the 29th March 1983 to supply water to Lagos State and Abeokuta for municipal uses, with power generation potentials to support Lower Ogun Irrigation Project. However, flooding has become an annual experience of downstream communities along Ogun river especially when the Oyan dam is opened; it has really becomes remarkable since the flood events of 2012. This project investigates the level of siltation and floods menace adjoining Oyan dam and its environ. An integrated metho
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Surakat, O. A., S. O. Sam-Wobo, K. A. Ademolu, et al. "Cytospecies Composition ofSimulium damnosumComplex (Diptera: Simuliidae) Breeding in Oyan River, Southwestern Nigeria." African Entomology 24, no. 1 (2016): 24–29. http://dx.doi.org/10.4001/003.024.0024.

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Ikhile, C. I., Kofo A. Aderogba, and Clement O. Ogunnowo. "Water Problems and Community Development: A Case Study of Igbo-Ora Community of Oyo State, Nigeria." Greener Journal of Social Sciences 2, no. 1 (2012): 1–8. https://doi.org/10.15580/gjss.2012.1.gjss1204.

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Water is known to be an inexhaustible resource because the total supply of it in the biosphere is not affected by human activities. Recycling time depends on various factors. It is not uniformly distributed all over the world and not readily available in the quantity and quality required in most parts on the earth surface. This piece has examined the&nbsp;sources, the crisis of scarcity, and development of water and alternatives in Igbo-Ora, Nigeria. The climate is tropical continental. The major occupation is farming. Major sources of water supply are the ponds, rivers, lakes, and rainfall. O
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Adebanji, Bankole, Oluwaseun Atoki, Taiwo Fasina, Oluwumi Adetan, and Adewale Abe. "Comparative study of off-grid and grid-connected hybrid power system: issues, future prospects and policy framework." Indonesian Journal of Electrical Engineering and Computer Science 22, no. 2 (2021): 752. http://dx.doi.org/10.11591/ijeecs.v22.i2.pp752-759.

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A sustainable energy system is of utmost importance for any significant development in any nation.This work identified some obstacles inhibiting rapid renewable energy growth in Nigeria and recommended some policy measures in overcoming them. Moreover, a comparative study of off-grid (OG) and grid-connected (GC) small hydro-solar photovoltaic-diesel hybrid system was carried out using Oyan river, Abeokuta, Nigeria as a case study. The hybrid components were modeled with and without the grid. The hydro solar resources data of the area were collected and analyzed using hybrid optimization model
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Adebanji, Bankole, Oluwaseun Atoki, Taiwo Fasina, Oluwumi Adetan, and Adewale Abe. "Comparative study of off-grid and grid-connected hybrid power system: issues, future prospects and policy framework." Indonesian Journal of Electrical Engineering and Computer Science 22, no. 2 (2021): 752–59. https://doi.org/10.11591/ijeecs.v22.i2.pp752-759.

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A sustainable energy system is of utmost importance for any significant development in any nation. This work identified some obstacles inhibiting rapid renewable energy growth in Nigeria and recommended some policy measures in overcoming them. Moreover, a comparative study of off-grid (OG) and grid-connected (GC) small hydro-solar photovoltaic-diesel hybrid system was carried out using Oyan river, Abeokuta, Nigeria as a case study. The hybrid components were modeled with and without the grid. The hydro solar resources data of the area were collected and analyzed using hybrid optimization model
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Basnayaka, Vindhya, Jayanga T. Samarasinghe, Miyuru B. Gunathilake, et al. "Analysis of Meandering River Morphodynamics Using Satellite Remote Sensing Data—An Application in the Lower Deduru Oya (River), Sri Lanka." Land 11, no. 7 (2022): 1091. http://dx.doi.org/10.3390/land11071091.

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River meandering and anabranching have become major problems in many large rivers that carry significant amounts of sediment worldwide. The morphodynamics of these rivers are complex due to the temporal variation of flows. However, the availability of remote sensing data and geographic information systems (GISs) provides the opportunity to analyze the morphological changes in river systems both quantitatively and qualitatively. The present study investigated the temporal changes in the river morphology of the Deduru Oya (river) in Sri Lanka, which is a meandering river. The study covered a per
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Kochkurkina, S., and O. Orfinskaya. "Elite objects from kurgans on the Oyat River (Leningrad Oblast)." Archaeological News 31 (2021): 252–63. http://dx.doi.org/10.31600/1817-6976-2021-31-252-263.

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This paper considers fragments of elite objects of the 10th–12th century from kurgans on the Oyat River. It is silk textiles, embroidered collars, and gold-woven threads. The authors arrived at the conclusion about the high price of these objects and the hypothetical place of their manufacture. Possibly, there were centres to which silk cloths and silk threads were imported and where women, to the extent of their skill, embroidered some details of clothes, then distrib- uted throughout a considerable territory. The rather inconsiderable qualitative level of the embroidering does not allow us t
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Dissertations / Theses on the topic "River Oyan"

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Talbert, Meredith Corea. "Understanding Sand Mining on the Maha Oya: The Conflict Between Economic and Environmental Survival." PDXScholar, 2012. https://pdxscholar.library.pdx.edu/open_access_etds/522.

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River sand mining from the Maha Oya is the main source of income and a force that drives economic activity for residents along the river. This study takes place in Sri Lanka, there are three villages included in this project: Jambugaswatte, Janituspuraya and Thoppuwa. In Sri Lanka, sand serves as the main building material. It is used to make bricks, tiles, asphalt and concrete, therefore demanding a high market value. However, the over-extraction of sand comes along with significant environmental problems. These communities depend on the river in many ways and the health of the river directly
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Books on the topic "River Oyan"

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Wetland Conservation Project (Sri Lanka), Euroconsult (Organization), and Sri Lanka. Ministry of Transport, Environment, and Women's Affairs., eds. Mi Oya River Basin. Central Environmental Authority, 1994.

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Peoples of the river valley. PowerKids Press, 1996.

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Book chapters on the topic "River Oyan"

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Thoradeniya, Bhadranie, and Malik Ranasinghe. "Community Stakeholder Viewpoints on Issues of Urbanisation Along the River Ma Oya, Sri Lanka." In Balanced Urban Development: Options and Strategies for Liveable Cities. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-28112-4_9.

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Thoradeniya, Bhadranie. "Application of an Educated Trade-Off Analysis Framework for the Ma Oya River Basin Development Project, Sri Lanka." In Cost-Benefit Studies of Natural Resource Management in Southeast Asia. Springer Singapore, 2015. http://dx.doi.org/10.1007/978-981-287-393-4_9.

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Mahakumarage, Nandana, Vajira Hettige, Sunil Jayaweera, and Buddika Hapuarachchi. "Assessing Flood Risks in Malwathu Oya River Basin in Northern Sri Lanka for Establishing Effective Early Warning System." In Multi-Hazard Early Warning and Disaster Risks. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-73003-1_49.

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Gunawardena, D. L. K., and N. D. K. Dayawansa. "Assessment of Water Availability for Agriculture and Other Uses – Development of Indices for Deduru Oya River Basin in Sri Lanka." In Water, Flood Management and Water Security Under a Changing Climate. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-47786-8_13.

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Conference papers on the topic "River Oyan"

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Jayathilaka, R. M. R. M., N. P. Ratnayake, T. M. N. Wijayaratna, and K. B. A. Silva. "A Preliminary evaluation of river sediment load: a case study of Maha oya river in the western coast of Sri Lanka." In International Symposium on Earth Resources Management & Environment - ISERME 2024. Division of Sustainable Resources Engineering, Hokkaido University, Japan, 2024. https://doi.org/10.31705/iserme.2024.10.

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Rivers have a significant role in the coastal sediment budget as the primary sources of natural sediment. Furthermore, it's critical to understand the actual contribution of river sediment load to the littoral beach. Due to the practicality of the measures, the information regarding river measurements is scarce making this difficult. This study focused on the Maha Oya River, which is situated on a severely eroding coastline on Sri Lanka's western coast between Negombo and Chilaw. In this instance, the river sediment load was captured by two streamer-type sediment traps along the upper 2 km str
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Jayathilaka, RMRM, and NP Ratnayake. "A Grain Size Threshold for Quantifying Active Sediment Input: A Case Study of Maha Oya River in the Western Coast of Sri Lanka." In International Symposium on Earth Resources Management & Environment. Department of Earth Resources Engineering, University of Moratuwa, Sri Lanka, 2022. http://dx.doi.org/10.31705/iserme.2022.13.

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Rivers have a significant role in the coastal sediment budget as the primary sources of natural sediment. Further, it is essential to comprehend the minimum grain size threshold, also known as the littoral cutoff diameter (LCD), in order to determine the actual contribution of river sediment load to the littoral beach. This study aims to present the LCD as a crucial variable worth taking into account at the regional level when budgeting for littoral sediments. Maha Oya River located on a severely eroding coastline between Negombo and Chilaw on the western coast of Sri Lanka was focus in this s
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Nab, Abdul Wahed, Harsha Ratnasooriya, Janaka Bamunawala, and Lalith Rajapakse. "Bridging the Gap: Advancing Hydrological Modelling for the Maduru Oya River Basin." In 2023 Moratuwa Engineering Research Conference (MERCon). IEEE, 2023. http://dx.doi.org/10.1109/mercon60487.2023.10355405.

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Tharuka, W. M. S., and H. G. L. N. Gunawardhana. "Assessing future low-flow variations in a dry zone river basin under changing climate conditions." In Civil Engineering Research Symposium 2024. Department of Civil Engineering, University of Moratuwa, 2024. http://dx.doi.org/10.31705/cers.2024.19.

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Climate change significantly alters the low-flow regimes of river basins worldwide and presents significant challenges to water-scarce regions, especially in dry regions. This current study investigates the impact of climate change on projected low-flow variations in the Maduru Oya River Basin in Sri Lanka, focusing on the reach to the Padiyathalawa stream-gauge station. The study utilizes a lumped hydrological modeling framework, which used the HEC-HMS rainfall-runoff model to simulate streamflow behavior considering anticipated climate scenarios. Projections for future precipitation were obt
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Rubyhanusha, P., and R. L. H. L. Rajapakse. "Significance of Spatial Variability in Precipitation for Stream Flow Modeling in Maha Oya River Basin, Sri Lanka." In 2019 Moratuwa Engineering Research Conference (MERCon). IEEE, 2019. http://dx.doi.org/10.1109/mercon.2019.8818774.

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Rathnayake, A. G. S. N., R. Luxman, N. A. P. Udayanga, S. P. Chaminda, W. C. A. Ishankha, and L. Gunawardhana. "Assessment of seasonal and spatial water quality changes in Kelani river, sri lanka." In International Symposium on Earth Resources Management & Environment - ISERME 2024. Division of Sustainable Resources Engineering, Hokkaido University, Japan, 2024. https://doi.org/10.31705/iserme.2024.30.

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The deteriorating water quality of the Kelani River over time has negatively affected environmental health and sustainability. This study aims to determine the relationship between land use types and its impact on the water quality within the Kelani River basin. The analysis utilized a dataset comprising 23 parameters related to water quality, spanning 17 sampling locations along both the primary river and its tributaries from 2003 to 2023. IBM SPSS Statistics (Version 26), was utilized for data analysis, focusing on 7 water quality parameters (pH, dissolved oxygen (DO), chemical oxygen demand
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Pabasara, G. K., and H. G. L. N. Gunawardhana. "Use of streamflow and satellite remote sensing soil moisture data for jointly calibrating the tank model." In Civil Engineering Research Symposium 2024. Department of Civil Engineering, University of Moratuwa, 2024. http://dx.doi.org/10.31705/cers.2024.6.

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Hydrological modelling in arid river basins is particularly complex due to the pronounced seasonal variability in water levels fluctuating between aridity and inundation. Solely relying on a single parameter, such as streamflow data, to calibrate hydrological models in these basins can be insufficient to capture intricate interdependencies of hydrological processes. This study aimed to optimize the lumped hydrological Tank Model to accurately simulate the complex hydrological behaviour of the Maduru Oya River Basin in Sri Lanka. Further, the research investigated the use of satellite (remote s
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Karunarathna, S. M. S. D., and R. L. H. L. Rajapakse. "Enhancing streamflow prediction in Sri Lankan River Basins using AI models: A comparative study of wet and dry zones." In Civil Engineering Research Symposium 2024. Department of Civil Engineering, University of Moratuwa, 2024. http://dx.doi.org/10.31705/cers.2024.13.

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Artificial Intelligence (AI) techniques have gained significant attention in recent years for their application in various engineering domains, including hydrology. Groundwater modelling, streamflow prediction, precipitation forecasting, temperature forecasting, and time series generation for rainfall are some of the hydrological applications that have benefited from AI techniques. In Sri Lanka, water resource management is challenging due to the country's geographical characteristics, seasonal rainfall patterns, and growing water demands. Traditional methods used in water resource management
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