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Gharari, S. (author), Shafiei, M. (author), Hrachowitz, M. (author), Fenicia, F. (author), Gupta, H.V. (author), Savenije, H.H.G. (author)Many environmental systems models, such as conceptual rainfall-runoff models, rely on model calibration for parameter identification. For this, an observed output time series (such as runoff) is needed, but frequently not available. Here, we explore another way to constrain the parameter values of semi-distributed conceptual models, based on two...journal article 2013
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Gharari, S. (author), Hrachowitz, M. (author), Fenecia, F. (author), Gao, H. (author), Savenije, H.H.G. (author)Conceptual environmental systems models, such as rainfall runoff models, generally rely on calibration for parameter identification. Increasing complexity of this type of model for better representation of hydrological process heterogeneity typically makes parameter identification more difficult. Although various, potentially valuable,...journal article 2013
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Savenije, H.H.G. (author), Hoekstra, A.Y. (author), Van der Zaag, P. (author)This paper reviews the changing relation between man and water since the industrial revolution, the period that has been called the Anthropocene because of the unprecedented scale at which humans have altered the planet.We show how the rapidly changing reality urges us to continuously improve our understanding of the complex interactions between...journal article 2013
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Cai, H. (author), Savenije, H.H.G. (author)Tidal wave propagation can be described analytically by a set of four implicit equations, i.e., the phase lag equation, the scaling equation, the damping equation, and the celerity equation. It is demonstrated that this system of equations has an asymptotic solution for an infinite channel, reflecting the balance between friction and channel...journal article 2013
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Valk, M. (author), Savenije, H.H.G. (author), Tiberius, C.C.J.M. (author), Luxemburg, W.M.J. (author)In this paper we present a novel method to determine the time of occurrence of tidal slack with a GPS receiver mounted on an anchored buoy commonly used to delineate shipping lanes in estuaries and tidal channels. Slack tide occurs when the tide changes direction from ebb to flood flow, or from flood to ebb. The determination of this point in...journal article 2013
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- Gao, H. (author), Hrachowitz, M. (author), Fenicia, F.F. (author), Gharari, S. (author), Savenije, H.H.G. (author) journal article 2013
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Cai, H. (author), Savenije, H.H.G. (author), Toffolon, M. (author)The effect of river discharge on tidal damping in estuaries is explored within one consistent theoretical framework where analytical solutions are obtained by solving four implicit equations, i.e., the phase lag, the scaling, the damping and the celerity equation. In this approach the damping equation is obtained by subtracting the envelope...journal article 2013
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Van der Ent, R.J. (author), Savenije, H.H.G. (author)Identifying the sources of continental precipitation has received increasing attention in recent years. With the use of various numerical methods, sources of precipitation have been identified from local to global scales. In this paper we identify the oceanic sources based on an atmospheric backtracking analysis of continental precipitation. We...journal article 2013
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Fischer, B.M.C. (author), Mul, M.L. (author), Savenije, H.H.G. (author)With a growing world population and a trend towards more resource-intensive diets, pressure on land and water resources for food production will continue to increase in the coming decades. Large parts of the world rely on rainfed agriculture for their food security. In Africa, 90% of the food production is from rainfed agriculture, generally...journal article 2013
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Van der Ent, R.J. (author), Tuinenburg, O.A. (author), Knoche, H.R. (author), Kunstmann, H. (author), Savenije, H.H.G. (author)This paper compares three state-of-the-art atmospheric moisture tracking models. Such models are typically used to study the water component of coupled land and atmosphere models, in particular quantifying moisture recycling and the source-sink relations between evaporation and precipitation. However, there are several atmospheric moisture...journal article 2013
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Euser, T. (author), Winsemius, H.C. (author), Hrachowitz, M. (author), Fenicia, F. (author), Uhlenbrook, S. (author), Savenije, H.H.G. (author)The use of flexible hydrological model structures for hypothesis testing requires an objective and diagnostic method to identify whether a rainfall-runoff model structure is suitable for a certain catchment. To determine if a model structure is realistic, i.e. if it captures the relevant runoff processes, both performance and consistency are...journal article 2013
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Gharari, S. (author), Hrachowitz, M. (author), Fenicia, F. (author), Savenije, H.H.G. (author)Conceptual hydrological models rely on calibration for the identification of their parameters. As these models are typically designed to reflect real catchment processes, a key objective of an appropriate calibration strategy is the determination of parameter sets that reflect a “realistic” model behavior. Previous studies have shown that...journal article 2013
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- Euser, T. (author), Winsemius, H.C. (author), Hrachowitz, M. (author), Fenicia, F. (author), Uhlenbrook, S. (author), Savenije, H.H.G. (author) journal article 2012
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Temesgen, M. (author), Uhlenbrook, S. (author), Simane, B. (author), Van der Zaag, P. (author), Mohamed, Y. (author), Wenninger, Y. (author), Savenije, H.H.G. (author)Adoption of soil conservation structures (SCS) has been low in high rainfall areas of Ethiopia mainly due to crop yield reduction, increased soil erosion following breaching of SCS, incompatibility with the tradition of cross plowing and water-logging behind SCS. A new type of conservation tillage (CT) involving contour plowing and the...journal article 2012
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Jonker, L. (author), Van der Zaag, P. (author), Gumbo, B. (author), Rockström, J. (author), Love, D. (author), Savenije, H.H.G. (author)This paper reports the experience of a regional network of academic departments involved in water education that started as a project and evolved, over a period of 12 yr, into an independent network organisation. The paper pursues three objectives. First, it argues that it makes good sense to organise postgraduate education and research on water...journal article 2012
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Krier, R. (author), Matgen, P. (author), Goergen, K. (author), Pfister, L. (author), Hoffmann, L. (author), Kirchner, J.W. (author), Uhlenbrook, S. (author), Savenije, H.H.G. (author)The complexity of hydrological systems and the necessary simplification of models describing these systems remain major challenges in hydrological modeling. Kirchner's (2009) approach of inferring rainfall and evaporation from discharge fluctuations by “doing hydrology backward” is based on the assumption that catchment behavior can be...journal article 2012
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Hrachowitz, M. (author), Savenije, H.H.G. (author), Bogaard, T.A. (author), Tetzlaff, D. (author), Soulsby, C. (author)The complex interactions of runoff generation processes underlying the hydrological response of streams remain incompletely understood at the catchment scale. Extensive research has demonstrated the utility of tracers for both inferring flow paths distributions and constraining model parameterizations. While useful, the common use of linearity...journal article 2012
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Cai, H. (author), Savenije, H.H.G. (author), Toffolon, M. (author)This paper explores different analytical solutions of the tidal hydraulic equations in convergent estuaries. Linear and quasi-nonlinear models are compared for given geometry, friction, and tidal amplitude at the seaward boundary, proposing a common theoretical framework and showing that the main difference between the examined models lies in...journal article 2012
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Zhang, E.F. (author), Savenije, H.H.G. (author), Chen, S.L. (author), Mao, X.H. (author)An analytical model for tidal dynamics has been applied to the Yangtze Estuary for the first time, to describe the tidal propagation in this large and typically branched estuary with three-order branches and four outlets to the sea. This study shows that the analytical model developed for a single-channel estuary can also accurately describe the...journal article 2012
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Schaefli, B. (author), Van der Ent, R.J. (author), Woods, R. (author), Savenije, H.H.G. (author)Soil-atmosphere feedback is a key for understanding the hydrological cycle and the direction of potential system changes. This paper presents an analytical framework to study the interplay between soil and atmospheric moisture, using as input only the boundary conditions at the upstream end of trajectory, assuming advective moisture transport...journal article 2012