Search Results - "de Rooij, Gerrit"

Parametric soil water retention models: a critical evaluation of expressions for the full moisture range by Madi, Raneem, de Rooij, Gerrit Huibert, Mielenz, Henrike, Mai, Juliane

“…Few parametric expressions for the soil water retention curve are suitable for dry conditions. Furthermore, expressions for the soil hydraulic conductivity…”
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Sigmoidal water retention function with improved behaviour in dry and wet soils by de Rooij, Gerrit Huibert, Mai, Juliane, Madi, Raneem

“…A popular parameterized soil water retention curve (SWRC) has a hydraulic conductivity curve associated with it that can have a physically unacceptable…”
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A New Principle for Measuring the Average Relative Humidity in Large Volumes of Non-Homogenous Gas by Lazik, Detlef, de Rooij, Gerrit H, Lazik, Walter, Meissner, Ralph

“…Due to the current extent of arid regions, the pressure on available water resources is increasing. A suitable measure for water availability and dynamics in…”
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Technical note: A sigmoidal soil water retention curve without asymptote that is robust when dry-range data are unreliable by de Rooij, Gerrit Huibert

“…In a recently introduced parameterization for the soil water retention curve (SWRC) with a sigmoid wet branch and a logarithmic dry branch, the matric…”
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High-frequency measurements explain quantity and quality of dissolved organic carbon mobilization in a headwater catchment by Werner, Benedikt J, Musolff, Andreas, Lechtenfeld, Oliver J, de Rooij, Gerrit H, Oosterwoud, Marieke R, Fleckenstein, Jan H

“…Increasing dissolved organic carbon (DOC) concentrations and exports from headwater catchments impact the quality of downstream waters and pose challenges to…”
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Small-scale topography explains patterns and dynamics of dissolved organic carbon exports from the riparian zone of a temperate, forested catchment by Werner, Benedikt J, Lechtenfeld, Oliver J, Musolff, Andreas, de Rooij, Gerrit H, Yang, Jie, Gründling, Ralf, Werban, Ulrike, Fleckenstein, Jan H

“…Export of dissolved organic carbon (DOC) from riparian zones (RZs) is an important component of temperate catchment carbon budgets, but export mechanisms are…”
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Improving Load Estimates for NO3 and P in Surface Waters by Characterizing the Concentration Response to Rainfall Events by Rozemeijer, Joachim C, van der Velde, Ype, van Geer, Frans C, de Rooij, Gerrit H, Torfs, Paul J. J. F, Broers, Hans Peter

“…For the evaluation of action programs to reduce surface water pollution, water authorities invest heavily in water quality monitoring. However, sampling…”
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Comments on “Improving the Numerical Simulation of Soil Moisture–Based Richards Equation for Land Models with a Deep or Shallow Water Table” by de Rooij, Gerrit H.

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Quantifying effects of soil heterogeneity on groundwater pollution at four sites in USA by Vuurens, Saskia, Stagnitti, Frank, de Rooij, Gerrit, Boll, Jan, Li, Ling, LeBlanc, Marc, Ierodiaconou, Daniel, Versace, Vince, Salzman, Scott

“…Four sites located in the north-eastern region of the United States of America have been chosen to investigate the impacts of soil heterogeneity in the…”
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Averaging or adding domain conductivities to calculate the unsaturated soil hydraulic conductivity by Rooij, Gerrit H.

“…Recent models of the unsaturated hydraulic conductivity curve (UHCC) are the sum of separate UHCCs for domains of capillary water, film water, and water vapor…”
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Noble gases in groundwater reflect wet-season temperature in an arid, monsoonal, and mountainous environment by Müller, Thomas, de Rooij, Gerrit, Trauth, Nico, Schmidt, Mark, Badi, Humaid Al, Aeschbach, Werner

“…•Present day infiltration conditions in an monsoonal environment are studied.•Noble gas concentrations in groundwater are fixed near the soil surface.•Noble…”
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Aquifer-scale flow equations as generalized linear reservoir models for strip and circular aquifers: Links between the Darcian and the aquifer scale: Technical Note by de Rooij, Gerrit H.

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Aquifer-scale flow equations as generalized linear reservoir models for strip and circular aquifers: Links between the Darcian and the aquifer scale by de Rooij, Gerrit H.

“…An analytical treatment of aquifer flow is presented to establish a link between runoff models and aquifer properties. Recently developed one‐dimensional…”
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Modelling solute leaching during fingered flow by integrating and expanding various theoretical and empirical concepts by DE ROOIJ, GERRIT H., CHO, HIROYUKI

“…Wetting front instability (fingered flow) accelerates solute transport through the unsaturated zone to the groundwater table. Whether fingers widen or…”
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Spatial and temporal distribution of solute leaching in heterogeneous soils: analysis and application to multisampler lysimeter data by de Rooij, Gerrit H., Stagnitti, Frank

“…Accurate assessment of the fate of salts, nutrients, and pollutants in natural, heterogeneous soils requires a proper quantification of both spatial and…”
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Efficient calculation of solute transport in heterogeneous soils exhibiting non-Richards-type unsaturated flow by Rooij, Gerrit H., Vries, Peter

“…Soil heterogeneity hampers our ability to calculate field-scale solute leaching. Many of the existing field-scale modeling attempts are laborious, time…”
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Soil moisture and matric potential – an open field comparison of sensor systems by Jackisch, Conrad, Germer, Kai, Graeff, Thomas, Andrä, Ines, Schulz, Katrin, Schiedung, Marcus, Haller-Jans, Jaqueline, Schneider, Jonas, Jaquemotte, Julia, Helmer, Philipp, Lotz, Leander, Bauer, Andreas, Hahn, Irene, Sanda, Martin, Kumpan, Monika, Dorner, Johann, de Rooij, Gerrit, Wessel-Bothe, Stefan, Kottmann, Lorenz, Schittenhelm, Siegfried, Durner, Wolfgang

“…Soil water content and matric potential are central hydrological state variables. A large variety of automated probes and sensor systems for state monitoring…”
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Estimating groundwater recharge for an arid karst system using a combined approach of time-lapse camera monitoring and water balance modelling: Estimating Groundwater Recharge for an Arid Karst System by Schulz, Stephan, de Rooij, Gerrit H., Michelsen, Nils, Rausch, Randolf, Siebert, Christian, Schüth, Christoph, Al-Saud, Mohammed, Merz, Ralf

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Estimating groundwater recharge for an arid karst system using a combined approach of time‐lapse camera monitoring and water balance modelling by Schulz, Stephan, de Rooij, Gerrit H., Michelsen, Nils, Rausch, Randolf, Siebert, Christian, Schüth, Christoph, Al-Saud, Mohammed, Merz, Ralf

“…Groundwater is the principal water resource in semi‐arid and arid environments. Therefore, quantitative estimates of its replenishment rate are important for…”
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Improving Load Estimates for NO 3 and P in Surface Waters by Characterizing the Concentration Response to Rainfall Events by Rozemeijer, Joachim C., van der Velde, Ype, van Geer, Frans C., de Rooij, Gerrit H., Torfs, Paul J. J. F., Broers, Hans Peter

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