Towards a fully distributed multivariable hydrological deep learning model with graph neural networks

Fully distributed hydrological models take into account the spatial variability of a catchment, and allow for assessing its hydrological response at virtually any location. However, these models can be time-consuming when it comes to model runtime and calibration, especially for large-scale catchments. Meanwhile, deep learning models have shown...

The Hydrological Effect of Urban Nature-based Solutions on Catchment Scale: A Case Study in the Geul Catchment

Climate change imposes an increasingly big challenge worldwide regarding floods and droughts. The Netherlands is no exception to this, as it has been increasingly hit by these phenomena in recent years, especially in the south of the country. The July 2021 flood in the Geul catchment intensified discussions on climate resilience. It prompts...

Bias Correction of Climate Simulations to assess Climate Change Impacts on Low Flows in the Rhine River

Regional climate model (RCMs) simulations are used in hydrological (climate-change) impact assessment studies. However, RCMs exhibit noticeable deviation from observation, and can show large variation in ensemble projections (biases). The objective of this study is twofold, first to assess the robustness of two high-skill bias-correction methods...

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...

The Impact of Vegetation on the Partitioning of Evaporation in Conceptual Hydrological Models

Many conceptual hydrological models do not include any information on plant phenology, which represents the dynamic behavior of vegetation, to partition evaporation in a catchment. Such models often use potential evaporation to quantify evaporation from the interception reservoir and what remains afterward to quantify transpiration, or the other...

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...

Mitigation plan and water harvesting of flashflood in arid rural communities using modelling approach: A case study in Afouna village, Egypt

This paper aims to propose methods to mitigate the risks of flash flood events in arid rural communities with poor infrastructure. A flash flood management case study was conducted at Afouna Village in Egypt, which is characterized by an arid climate and faced a devasting flash flood in 2015. First, the flash flood was modelled and it was...

Improved process representation in the simulation of the hydrology of a meso-scale semi-arid catchment

The variability of rainfall and climate, combined with land use and land cover changes, and variation in geology and soils makes it a difficult task to accurately describe the key hydrological processes in a catchment. With the aim to better understand the key hydrological processes and runoff generation mechanisms in the semi-arid meso-scale...

Added value of distribution in rainfall-runoff models for the Meuse basin

Why do equal precipitation events not lead to equal discharge events across space and time? The easy answer would be because catchments are different, which then leads to the second question: Why do hydrologists often use the same rainfall-runoff model for different catchments? Probably because specifying and distributing hydrological processes...

Scenario Analysis - The Impact of Extreme Precipitation Patterns

In the course of the present work, it was investigated, what a hydrological situation would be created in the catchment area of the Tisza River by the occurrence of certain meteorological and hydrological scenarios, having real chances to happen.

River capacity improvement and partial floodplain reactivation along the Middle-Tisza - Scenario analysis

The research output describes the results of – analysis of factors of river capacity problems along the Middle-Tisza section, – scenario analysis of intervention options to raise the flood conveyance capacity of the flood bed, – scenario analysis of partial floodplain reactivation with controlled inundation. Individual and combined effects of...