Searched for: author:"Savenije, Hubert"
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Samboko, H.T. (author), Abas, I. (author), Luxemburg, W.M.J. (author), Savenije, Hubert (author), Makurira, H. (author), Banda, K. (author), Winsemius, H.C. (author)
Rapid advancements in technologies open up possibilities for water resource authorities to increase their ability to accurately, safely and efficiently establish river flow observation through remote and non-intrusive observation methods. Low-cost Unmanned Aerial Vehicles (UAVS) in combination with Global Navigation Satellite Systems (GNSS) can...
journal article 2020
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Bouaziz, L.J.E. (author), Steele-Dunne, S.C. (author), Schellekens, Jaap (author), Weerts, Albrecht H. (author), Stam, Jasper (author), Sprokkereef, Eric (author), Winsemius, H.C. (author), Savenije, Hubert (author), Hrachowitz, M. (author)
The spatiotemporal dynamics of water volumes stored in the unsaturated root zone are a key control on the response of terrestrial hydrological systems. Robust, catchment-scale root-zone soil moisture estimates are thus critical for reliable predictions of river flow, groundwater recharge, or evaporation. Satellites provide estimates of near...
journal article 2020
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Jimenez Rodriguez, C.D. (author), Coenders-Gerrits, Miriam (author), Wenninger, J.W. (author), Gonzalez-Angarita, Adriana (author), Savenije, Hubert (author)
Tropical wet forests are complex ecosystems with a large number of plant species. These environments are characterized by a high water availability throughout the whole year and a complex canopy structure. However, how the different sections of the canopy contribute to total evaporation is poorly understood. The aim of this work is to...
journal article 2020
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Dembele, M. (author), Hrachowitz, M. (author), Savenije, Hubert (author), Mariéthoz, Grégoire (author), Schaefli, Bettina (author)
Hydrological model calibration combining Earth observations and in situ measurements is a promising solution to overcome the limitations of the traditional streamflow-only calibration. However, combining multiple data sources in model calibration requires a meaningful integration of the data sets, which should harness their most reliable...
journal article 2020
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Hulsman, P. (author), Winsemius, H.C. (author), Michailovsky, Claire I. (author), Savenije, Hubert (author), Hrachowitz, M. (author)
Limited availability of ground measurements in the vast majority of river basins world-wide increases the value of alternative data sources such as satellite observations in hydrological modelling. This study investigates the potential of using remotely sensed river water levels, i.e. altimetry observations, from multiple satellite missions...
journal article 2020
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Zimba, H.M. (author), Coenders-Gerrits, Miriam (author), Kawawa, Banda (author), Savenije, Hubert (author), Nyambe, Imasiku (author), Winsemius, H.C. (author)
Understanding the canopy cover relationship with canopy water content and canopy temperature in the Miombo ecosystem is important for studying the consequences of climate change. To better understand these relationships, we studied the satellite data-based land surface temperature (LST) as proxy for canopy temperature, leaf area index (LAI),...
journal article 2020
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Blöschl, Günter (author), Bierkens, Marc F.P. (author), Savenije, Hubert (author), Bogaard, T.A. (author), Hrachowitz, M. (author), Kolechkina, A.G. (author), Pande, S. (author), van der Ent, R.J. (author), van Nooijen, R.R.P. (author)
This paper is the outcome of a community initiative to identify major unsolved scientific problems in hydrology motivated by a need for stronger harmonisation of research efforts. The procedure involved a public consultation through online media, followed by two workshops through which a large number of potential science questions were collated,...
journal article 2019
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Zhang, Z. (author), Savenije, Hubert (author)
According to Kleidon (2016), natural systems evolve towards a state of maximum power, leading to higher levels of entropy production by different mechanisms, including gravitational circulation in alluvial estuaries. Gravitational circulation is driven by the potential energy of fresh water. Due to the density difference between seawater and...
journal article 2019
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Zehe, Erwin (author), Loritz, Ralf (author), Jackisch, Conrad (author), Westhoff, Martijn (author), Kleidon, Axel (author), Blume, Theresa (author), Hassler, Sibylle K. (author), Savenije, Hubert (author)
The present study confirms that a thermodynamic perspective on soil water is well suited to distinguishing the typical interplay of gravity and capillarity controls on soil water dynamics in different landscapes. To this end, we express the driving matric and gravity potentials by their energetic counterparts and characterize soil water by its...
journal article 2019
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Gao, Hongkai (author), Birkel, Christian (author), Hrachowitz, M. (author), Tetzlaff, Doerthe (author), Soulsby, Chris (author), Savenije, Hubert (author)
Reading landscapes and developing calibration-free runoff generation models that adequately reflect land surface heterogeneities remains the focus of much hydrological research. In this study, we report a novel and simple topography-driven runoff generation parameterization – the HAND-based Storage Capacity curve (HSC), which uses a topographic...
journal article 2019
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Cai, Huayang (author), Savenije, Hubert (author), Garel, Erwan (author), Zhang, Xianyi (author), Guo, Leicheng (author), Zhang, Min (author), Liu, Feng (author), Yang, Qingshu (author)
As a tide propagates into the estuary, river discharge affects tidal damping, primarily via a friction term, attenuating tidal motion by increasing the quadratic velocity in the numerator, while reducing the effective friction by increasing the water depth in the denominator. For the first time, we demonstrate a third effect of river discharge...
journal article 2019
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Kok, D.D. (author), Pande, S. (author), van Lier, J.B. (author), Ortigara, Angela R.C. (author), Savenije, Hubert (author), Uhlenbrook, S. (author)
Phosphorus is a nutrient necessary for the development of crops and is thus commonly applied as fertilizer to sustain agricultural production. It occurs naturally, in indefinite quantities of uncertain quality in phosphate rock formations, but also accumulates in urban and livestock wastewater wherefrom it is often lost as a pollutant....
journal article 2018
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Hulsman, P. (author), Bogaard, T.A. (author), Savenije, Hubert (author)
Hydrological models play an important role in water resources management. These models generally rely on discharge data for calibration. Discharge time series are normally derived from observed water levels by using a rating curve. However, this method suffers from many uncertainties due to insufficient observations, inadequate rating curve...
journal article 2018
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Savenije, Hubert (author)
Editors of several journals in the field of hydrology met during the General Assembly of the European Geosciences Union-EGU in Vienna in April 2017. This event was a follow-up of similar meetings held in 2013 and 2015. These meetings enable the group of editors to review the current status of the journals and the publication process, and to...
review 2018
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Wang-Erlandsson, L. (author), Fetzer, Ingo (author), Keys, Patrick W. (author), van der Ent, R.J. (author), Savenije, Hubert (author), Gordon, Line J. (author)
The effects of land-use change on river flows have usually been explained by changes within a river basin. However, land-atmosphere feedback such as moisture recycling can link local land-use change to modifications of remote precipitation, with further knock-on effects on distant river flows. Here, we look at river flow changes caused by...
journal article 2018
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Cai, H. (author), Toffolon, Marco (author), Savenije, Hubert (author), Yang, Qingshu (author), Garel, Erwan (author)
When different tidal constituents propagate along an estuary, they interact because of the presence of nonlinear terms in the hydrodynamic equations. In particular, due to the quadratic velocity in the friction term, the effective friction experienced by both the predominant and the minor tidal constituents is enhanced. We explore the...
journal article 2018
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Lutz, S.R. (author), Popp, Andrea (author), van Emmerik, T.H.M. (author), Gleeson, Tom (author), Kalaugher, Liz (author), Möbius, Karsten (author), Mudde, Tonie (author), Walton, Brett (author), Hut, R.W. (author), Savenije, Hubert (author), Slater, Louise J. (author), Solcerova, A. (author), Stoof, Cathelijne R. (author), Zink, Matthias (author)
Media such as television, newspapers and social media play a key role in the communication between scientists and the general public. Communicating your science via the media can be positive and rewarding by providing the inherent joy of sharing your knowledge with a broader audience, promoting science as a fundamental part of culture and...
journal article 2018
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Savenije, Hubert (author)
In groundwater hydrology, two simple linear equations exist describing the relation between groundwater flow and the gradient driving it: Darcy's equation and the linear reservoir. Both equations are empirical and straightforward, but work at different scales: Darcy's equation at the laboratory scale and the linear reservoir at the watershed...
journal article 2018
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Zhang, Z. (author), Savenije, Hubert (author)
The mixing of saline and fresh water is a process of energy dissipation. The freshwater flow that enters an estuary from the river contains potential energy with respect to the saline ocean water. This potential energy is able to perform work. Looking from the ocean to the river, there is a gradual transition from saline to fresh water and an...
journal article 2018
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Kok, D.D. (author), Pande, S. (author), Ortigara, Angela Renata Cordeiro (author), Savenije, Hubert (author), Uhlenbrook, S. (author)
Despite Africa controlling the vast majority of the global phosphate it also faces the greatest food shortages - partially due to a lack of access to the fertilizer market. A more accessible source of phosphorus comes from wastewater flows, which is currently lost through the discharge to open surface waters. Analysing the potential...
journal article 2018
Searched for: author:"Savenije, Hubert"
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