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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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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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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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Aalbers, E.E. (author)The procedure to determine evaporation in hydrological models is considered to be unsatisfactory by some researchers; ‘too’ accurate by others. In this procedure catchment scale evaporation is related to some form of potential evaporation, determined with point scale meteorological data. The main criticism is that the potential evaporation is...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 Looij, V.A. (author)This study explores the possibility of calibrating a conceptual hydrological model to tracer (Oxygen-18) data measured in streamflow with the ultimate goal to predict discharge. The hypothesis is that (changes in) Oxygen-18 concentrations in the stream should tell something about the relative contribution of fast runoff compared to slow runoff ...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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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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De Bruine, E.P. (author)Model study into the flooding patterns and resulting damages and casualties in case dikering Central Holland would be divided in several compartments by building in-land dikes. Scenario studies.master thesis 2006
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- De Vos, N.J. (author) master thesis 2003