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Abas, I. (author), Hagedooren, H. (author)
Additional thesis - The Pungue river originates in Zimbabwe and drains into the Indian Ocean creating a large alluvial estuary. The river discharge generated in the Eastern Highlands of Zimbabwe is an important source of fresh water for water consumers in Mozambique. In Mozambique the fresh water is used for drinking water production for the...
student report 2017
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Daniëls, J. (author)
An estuary forms the transition between the ocean/sea and a river. Within its boundaries salt and fresh water mix. Fresh water intake points may be located within the reach of salt intrusion. In order to justify political and managerial decisions it is thus necessary to understand and be able to predict the process of salt intrusion in estuaries...
master thesis 2016
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Schilperoort, B. (author)
In hydrological models evaporation is often still quite uncertain. Potential evaporation is used as input, but the modelling of plant stresses is not always accurate enough to describe the behaviour in reality. In situ measured actual evaporation data is rare, and doing measurements is time consuming and expensive. With the advance of satellite...
master thesis 2016
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Cömert, T. (author), Van de Koppel, N.T.D. (author)
In this article, we provide strong evidence for moisture feedback playing an important part in China’s precipitation. Due to the fact that China’s water scarcity has a huge impact on the economy and society, it is not only a problem for the country itself but could become a problem for the whole world in the near future. Most research in the...
bachelor thesis 2016
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Cömert, T. (author)
In this thesis, focus lays on converting a MATLAB model to Python. Models are used a lot by students and researchers at universities and they provide an unique way of calculating and reviewing data and results. However, at the Delft University of Technology, a lot of these models are written in MATLAB. MATLAB is a programming language which...
bachelor thesis 2016
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van de Koppel, N. (author)
In this thesis, focus lays on converting a MATLAB model to Python. Models are used a lot by students and researchers at universities and they provide an unique way of calculating and reviewing data and results. However, at the Delft University of Technology, a lot of these models are written in MATLAB. MATLAB is a programming language which...
bachelor thesis 2016
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Van Dijk, J.C.D. (author)
This master thesis investigated the origin of the seemingly perennial (base) flow in a hydrological complex, Inselberg (a type of mountain) dominated catchment in the Municipality of Messica, Manica Province, Mozambique. Smallholders rely on these perennial flows, since they have three growth seasons, two of them during the dry period. This year...
master thesis 2016
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Sánchez Altamirano, C.A. (author)
Some of the most cited analytical and numerical models that estimate the precipitation recycling ratio are used, and their results are compared. Also a simplified method that calculates the monthly recycling ratio from values of local evaporation is developed and tested for the U.S. Midwest.
master thesis 2016
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De Vries, S. (author)
Small blind estuaries are a common phenomenon on the coast of Nicaragua, but unfortunately not much is known on their hydrological characteristics. A blind estuary can be identified by a sandbar that temporarily closes the estuary from sea. These blind estuaries often have very diverse flora and fauna on which they play an important ecological...
master thesis 2016
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Diederen, D. (author)
Consider an estuary which is described by two governing equations for two variables, the water level 'zeta' and the velocity 'u'. Having two governing equations (Saint-Venant, 1871) is sufficient to perform time integration. The problem statement for a finite domain contains two boundary conditions and an initial condition. However, if the...
master thesis 2015
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Van Osnabrugge, B. (author)
DNA has a number of characteristics which make it very promising as a hydrological tracer. It is detectable in extremely low quantities and can provide a virtually unlimited amount of unique tracers. The DNA tracer method has been further developed towards a multipurpose tracer combining a DNA tag, a paramagnetic core and a protective coating...
master thesis 2015
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Hulsman, P. (author)
The Mara River originates in Kenya in the Mau Escarpment and flows through the Serengeti ecosystem into Lake Victoria in Tanzania; in total it is about 395 km long. In this river, human interventions have led to increased of agricultural areas. As a result, increased fast runoff and top soil erosion is expected. Consequently, more sediments is...
master thesis 2015
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Gijsbers, S.F.M. (author)
The development of a conceptual rainfall-runoff model generally requires calibration to obtain non-observable parameters. This becomes especially difficult in river basins where data are absent, frequently intermittent or inaccurate. Rainfall-runoff models are usually calibrated on discharge data that are derived from stage observations by means...
master thesis 2015
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De Kloe, J.J. (author)
Rainfall runoff modeling is a major task of many hydrologist. Therefore always a lot of research is done to modeling. One of the problems of modeling is often the lack of data. Most of the world is data scarce, in the sense that no discharge is being measured. Although this is the case, it is often preferable to make a model of a catchment in...
master thesis 2014
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De Weerd, M.G.P. (author)
A common practice for hydrologists to determine the performance of a hydrological model and its parameter values, is by calibrating the model parameters on observed discharge data, but this data is not always available. For this reason, other data should be used as complementary data in order to reduce the uncertainty of outflow and processes in...
master thesis 2014
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Piet, M.M. (author)
Direct measurement of river discharge is time consuming and financially demanding. Continuous river discharge measurements are therefore generally derived from continuous stage measurements, through a stage-discharge relation, also called a rating curve. Rating curves are determined by fitting a curve to a limited number of points (hi, Qi),...
master thesis 2014
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Berghuijs, W.R. (author)
The bulk of catchment science literature consist of ‘unique’ case studies describing the complex interaction of soils, water, vegetation, topography and geology at individual sites. Yet, the uniqueness of individual sites makes it difficult to transfer findings to new locations and facilitate understanding and prediction in other catchments. In...
master thesis 2013
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Nijzink, R.C. (author)
Dispersion is often hard to incorporate in analytical salt intrusion models. The analytical models of Savenije (1986) and Kuijper & Van Rijn (2011) are quite similar and use a predictive equation for the dispersion in the estuary mouth. The biggest difference between the two models is the Van der Burgh K for which Kuijper and Van Rijn stated...
master thesis 2013
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Van der Ent, R.J. (author)
The importance of moisture feedback between continental precipitation and evaporation, referred to as moisture recycling, is still under debate. Most of the research in the past focused on the contribution of recycling to precipitation within a certain region only. This paper clearly distinguishes between different definitions of moisture...
master thesis 2009
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Guo, H. (author)
The topic of this thesis is a concept of zero liquid discharge for nanofiltration technology in drinking water treatment. Nanofiltration, defined as a process between Ultrafiltration (UF) and Reverse Osmosis (RO), is a rapidly emerging technology. The origin of NF membranes can be traced back to the late 1950s when it was developed to treat sea...
master thesis 2008
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