Search Results - "FRANSSEN, H."

Accuracy of the cosmic-ray soil water content probe in humid forest ecosystems: The worst case scenario by Bogena, H. R., Huisman, J. A., Baatz, R., Hendricks Franssen, H.-J., Vereecken, H.

“…Soil water content is one of the key state variables in the soil‐vegetation‐atmosphere continuum due to its important role in the exchange of water and energy…”
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Multi-mission satellite remote sensing data for improving land hydrological models via data assimilation by Khaki, M., Hendricks Franssen, H.-J., Han, S. C.

“…Satellite remote sensing offers valuable tools to study Earth and hydrological processes and improve land surface models. This is essential to improve the…”
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Advancing data assimilation in operational hydrologic forecasting: progresses, challenges, and emerging opportunities by Liu, Y, Weerts, A. H, Clark, M, Hendricks Franssen, H.-J, Kumar, S, Moradkhani, H, Seo, D.-J, Schwanenberg, D, Smith, P, van Dijk, A. I. J. M, van Velzen, N, He, M, Lee, H, Noh, S. J, Rakovec, O, Restrepo, P

“…Data assimilation (DA) holds considerable potential for improving hydrologic predictions as demonstrated in numerous research studies. However, advances in…”
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Parameter estimation by ensemble Kalman filters with transformed data: Approach and application to hydraulic tomography by Schöniger, A., Nowak, W., Hendricks Franssen, H.-J.

“…Ensemble Kalman filters (EnKFs) are a successful tool for estimating state variables in atmospheric and oceanic sciences. Recent research has prepared the EnKF…”
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Actual evapotranspiration and precipitation measured by lysimeters: a comparison with eddy covariance and tipping bucket by Gebler, S, H-J Hendricks Franssen, Pütz, T, Post, H, Schmidt, M, Vereecken, H

“…This study compares actual evapotranspiration (ETa) measurements by a set of six weighable lysimeters, ETa estimates obtained with the eddy covariance (EC)…”
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An empirical vegetation correction for soil water content quantification using cosmic ray probes by Baatz, R., Bogena, H. R., Hendricks Franssen, H.-J., Huisman, J. A., Montzka, C., Vereecken, H.

“…Cosmic ray probes are an emerging technology to continuously monitor soil water content at a scale significant to land surface processes. However, the…”
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Soil hydrology: Recent methodological advances, challenges, and perspectives by Vereecken, H., Huisman, J. A., Hendricks Franssen, H. J., Brüggemann, N., Bogena, H. R., Kollet, S., Javaux, M., van der Kruk, J., Vanderborght, J.

“…Technological and methodological progress is essential to improve our understanding of fundamental processes in natural and engineering sciences. In this…”
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SMOS soil moisture assimilation for improved hydrologic simulation in the Murray Darling Basin, Australia by Lievens, H., Tomer, S.K., Al Bitar, A., De Lannoy, G.J.M., Drusch, M., Dumedah, G., Hendricks Franssen, H.-J., Kerr, Y.H., Martens, B., Pan, M., Roundy, J.K., Vereecken, H., Walker, J.P., Wood, E.F., Verhoest, N.E.C., Pauwels, V.R.N.

“…This study explores the benefits of assimilating SMOS soil moisture retrievals for hydrologic modeling, with a focus on soil moisture and streamflow…”
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Real-time groundwater flow modeling with the Ensemble Kalman Filter: Joint estimation of states and parameters and the filter inbreeding problem by Hendricks Franssen, H. J., Kinzelbach, W.

“…Real‐time groundwater flow modeling with filter methods is interesting for dynamical groundwater flow systems, for which measurement data in real‐time are…”
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Land Surface Modeling as a Tool to Explore Sustainable Irrigation Practices in Mediterranean Fruit Orchards by Dombrowski, O., Brogi, C., Hendricks Franssen, H.‐J., Pisinaras, V., Panagopoulos, A., Swenson, S., Bogena, H.

“…Irrigation strongly influences land‐atmosphere processes from regional to global scale. Therefore, an accurate representation of irrigation is crucial to…”
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Calibration of a catchment scale cosmic-ray probe network: A comparison of three parameterization methods by Baatz, R., Bogena, H.R., Hendricks Franssen, H.-J., Huisman, J.A., Qu, W., Montzka, C., Vereecken, H.

“…•We applied three parameterization methods for cosmic-ray soil moisture probes.•The methods were evaluated with independent measurements.•All three methods…”
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Iterative filter based estimation of fully 3D heterogeneous fields of permeability and Mualem-van Genuchten parameters by Chaudhuri, A., Franssen, H.-J. Hendricks, Sekhar, M.

“…•Estimation of heterogeneous hydraulic conductivity and van Genuchten α and n fields•Iterative EnKF successfully estimated jointly the soil parameter…”
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The influence of riverbed heterogeneity patterns on river-aquifer exchange fluxes under different connection regimes by Tang, Q., Kurtz, W., Schilling, O.S., Brunner, P., Vereecken, H., Hendricks Franssen, H.-J.

“…•The role of riverbed heterogeneity patterns on exchange fluxes is investigated.•Analysis is made with an integrated hydrological model and data…”
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Global water scarcity including surface water quality and expansions of clean water technologies by van Vliet, Michelle T H, Jones, Edward R, Flörke, Martina, Franssen, Wietse H P, Hanasaki, Naota, Wada, Yoshihide, Yearsley, John R

“…Water scarcity threatens people in various regions, and has predominantly been studied from a water quantity perspective only. Here we show that global water…”
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Assimilation of 3D radar reflectivities with an ensemble Kalman filter on the convective scale by Bick, T., Simmer, C., Trömel, S., Wapler, K., Hendricks Franssen, H.‐J., Stephan, K., Blahak, U., Schraff, C., Reich, H., Zeng, Y., Potthast, R.

“…An ensemble data assimilation system for 3D radar reflectivity data is introduced for the convection‐permitting numerical weather prediction model of the…”
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Demographic risk factors for COVID-19 infection, severity, ICU admission and death: a meta-analysis of 59 studies by Pijls, Bart G, Jolani, Shahab, Atherley, Anique, Derckx, Raissa T, Dijkstra, Janna I R, Franssen, Gregor H L, Hendriks, Stevie, Richters, Anke, Venemans-Jellema, Annemarie, Zalpuri, Saurabh, Zeegers, Maurice P

“…ObjectiveWe aimed to describe the associations of age and sex with the risk of COVID-19 in different severity stages ranging from infection to…”
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Can consumer wearable activity tracker-based interventions improve physical activity and cardiometabolic health in patients with chronic diseases? A systematic review and meta-analysis of randomised controlled trials by Franssen, Wouter M A, Franssen, Gregor H L M, Spaas, Jan, Solmi, Francesca, Eijnde, Bert O

“…To date, it is unclear if consumer wearable activity trackers (CWATs), with or without behaviour multi-component strategies, effectively improve adherence to…”
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Correction of systematic model forcing bias of CLM using assimilation of cosmic-ray Neutrons and land surface temperature: a study in the Heihe Catchment, China by Han, X, Franssen, H.-J. H, Rosolem, R, Jin, R, Li, X, Vereecken, H

“…The recent development of the non-invasive cosmic-ray soil moisture sensing technique fills the gap between point-scale soil moisture measurements and…”
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Is high-resolution inverse characterization of heterogeneous river bed hydraulic conductivities needed and possible? by Kurtz, W, Hendricks Franssen, H.-J, Brunner, P, Vereecken, H

“…River–aquifer exchange fluxes influence local and regional water balances and affect groundwater and river water quality and quantity. Unfortunately,…”
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Assessing large-scale weekly cycles in meteorological variables: a review by Sanchez-Lorenzo, A, Laux, P, Hendricks Franssen, H.-J, Calbó, J, Vogl, S, Georgoulias, A. K, Quaas, J

“…Several studies have claimed to have found significant weekly cycles of meteorological variables appearing over large domains, which can hardly be related to…”
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