Evaluating Constant Failure Rates in Storm Surge Barriers: A Statistical Framework Applied to Censored Component Lifetimes of the Oosterscheldekering

This study examines the validity of constant failure rates in the reliability assessment of storm surge barriers, with a focus on the Stormvloedkering Oosterschelde (SVKO). Analysing a dataset of 1,501 malfunctions, including 87 critical incidents over six years, we employ Exponential and Weibull statistical models to assess failure rates. The...

Understanding Sedimentation Trajectories and Social Relations with Agent-based Modeling of Sudan’s Gezira Scheme

Can the use of different interpolation methods lead to improved performance of the HYPE model?

This additional thesis project is performed as preliminary research for a bigger project that they are going to start at Lund University, to investigate whether the use of a different interpolation methods, to link the precipitation data to the sub-basins centers of the HYPE model, lead to improved model performance. In this report, previously...

Reducing data and model errors in monthly water balance modeling based on remote sensing data

The water balance model has been an indispensable tool for quantifying water supply and demand and regulating water resources for decades. By convention, hydrologists use in-situ measurements of river discharge for model calibration. Whereas hardly is it possible for areas suffering from data storage. Researchers have been working on methods...

Hydro-Archeological Modeling of Neo-Assyrian Watercourses

This thesis is the first attempt in modeling Sennacherib’s (Neo-Assyrian king) colossal watercourse networks, with its main goal to uncover their hypothetical functionalities and operation, regarding irrigation needs and harvest yield production. Their total length surpasses 150 Km and was completed in four stages, with lack of data forcing...

Optimizing the use of Delta21 for flood prone areas not protected by flood defenses at Dordrecht: A study on the operation strategy and reliability of a new flood protection system

High-water levels in the Rhine-Meuse delta are going to rise in the upcoming decades due to climate change with the accompanied sea level rise and the increase of the frequency of extreme Rhine discharges. The flood prone areas not protected by flood defenses at the Island of Dordrecht are directly influenced by the increase of these high-water...

The Canals Never Lie: MASSCOTE framework and modelling of operation strategies in the Gezira Irrigation Scheme

The Gezira irrigation scheme, in Sudan, stretches out south of Khartoum between the Blue Nile and the While Nile Rivers. For more than 95 years since its establishment in 1925, the scheme has been a significant asset to Sudan’s economy. It is considered one of the oldest and largest schemes in the world being served by one management body using...

The variability of the rootzone storage capacity in Austria: An exploration of its controls

The rootzone storage capacity (Sr) is a crucial part of the hydrological cycle. This storage provides water access for vegetation, in order to meet the atmospheric water demand through transpiration. The spatio-temporal variability of Sr is not well represented in current hydrological and climate models. The root zone...

Wireless Event-Triggered Control for Water Irrigation Systems

The application of optimal control structures for water irrigation systems (WISs) can be enabled by applying wireless event-triggered control (ETC). The term WIS, is used to describe open-water channels, that are mainly used to supply water to farmers all around the world. The water levels in these channels need to be controlled, but because of...

Counteraction of buoyancy flow in high temperature aquifer thermal energy storage systems by applying multiple partially penetrating wells

The thermal recovery efficiency of High Temperature Aquifer Thermal Energy Storage (HT-ATES) systems can be limited due to the effect of buoyancy flow of the injected hot water. This thesis has researched the application of a Multiple Partially Penetrating Wells (MPPWs) as a well design method to counteract the effect of buoyancy flow and...

Design of an adaptive weir: A case study of the replacement of weir Belfeld

In contrast with other Dutch rivers parts, human measures in the upstream part of the River Meuse did not mainly focus on discharging surplus water, but on retaining water in dry periods. Almost 100 years ago seven weirs were constructed in the River Meuse to enable transport of coals. The structures reach, due to concrete degradation, the end...