An Assessment of Predictive Models for Operational Management of a Reservoir in a Data-Scarce Basin: A Case Study of the Black Volta Basin

The Bui Dam, the second-largest hydropower dam in Ghana, plays a significant role in the sustainable energy mix of the country. It is managed by the Bui Power Authority (BPA) and has a capacity of hydro-clean generation of 404MW, contributing to 17% of the country’s total electricity generation. However, decision-making at the dam lacks the use...

3D River Discharge Modelling using UAV photogrammetry

Water is essential for life on earth and is vital for numerous sectors of our society. Pressures arising from climate change, growing populations, and the shift towards clean energy accentuate the importance of effective water management. To make decisions about water resource allocation, hydraulic modeling studies have been undertaken on large...

Exploring sustainable sand-winning in the White Volta: Estimating transient storage upstream of run-of-river weirs for sand winning purposes via hec-ras 6, 1-d, flume models

This research aims to explore sediment transport behavior and accumulation caused by run-of-river weirs in order to examine there feasibility for sustainable sediment mining purposes in the White Volta River. Weirs are used to raise water levels up-stream to increase water levels and storage, but their is little information regarding sediment...

White Volta Water Retention: Thesis on the Impact of Constructing Multiple Small Dams on Floods and Sedimentation in Northern Ghana

Human interventions in the White Volta River in Ghana increase the flood risk in living spaces of the local communities, causing great challenges in the area. Burkina Faso has built a hydropower dam near the border with Ghana which has a large impact on the discharge extremes of the White Volta River. As a result of poor water management of this...

Improving the performance of distributed conceptual hydrological models using the spatio-temporal patterns of RS observations: Improving the performance of distributed conceptual hydrological models using the spatio-temporal patterns of RS observations

Hydrological models are used for all kinds of water management applications. Detailed hydrological simulations are needed to solve the hydrological problems of the 21st century, especially in developing countries. However, sufficient hydrological and meteorological data is often not available. The use of remote sensing (RS) datasets may offer a...

The clam and the dam: A Bayesian belief network approach to environmental flow assessment in a data scarce region

The Volta clam, Galatea paradoxa, is a freshwater macrobenthic bivalve which is endemic to the Lower Volta River in Ghana. The range of occurrence of the clam has been influenced by the flow regime in the Lower Volta which is in turn controlled by operation of two dams located upstream. Previous research has documented the changes to the Lower...

Gap-filling of daily streamflow time series using Direct Sampling in various hydroclimatic settings

Complete hydrological time series are necessary for water resources management and modeling. This can be challenging in data scarce environments where data gaps are ubiquitous. In many applications, repetitive gaps can have unfortunate consequences including ineffective model calibration, unreliable timing of peak flows, and biased statistics....

The creation of a reservoir in the White Volta River, Ghana: An analysis of the impact on river morphology

There are plans for the construction of a multi-purpose dam in the White Volta River near Pwalugu in northern Ghana. The reservoir that will be formed should be beneficial for hydropower generation, irrigation and fishery. Up to now there has been no research into the morphological consequences of the creation of this reservoir. In this study...

Assimilating Soil Moisture Data into a Hydrological Model of the Volta Basin

Soil moisture is important for the Volta Basin. However, in-situ measurements of soil moisture in the Volta Basin are scarce, only remote sensing observations are available. Remote sensing observations are also provided with limited temporal and spatial resolutions. Also capabilities of the sensors are limited (e.g measuring soil moisture...

Volta: Research and Showcase

Developing software as a service is a new trend in the IT industry. Volta is a new technology that targets simplifying this type of software. It offers developers a toolkit that enables Web development in any .NET language. This is done by recompiling the CIL code to JavaScript for the client tier (browser) and a .NET application for the Web...