F
François Jonard
Researcher at Forschungszentrum Jülich
Publications - 80
Citations - 1704
François Jonard is an academic researcher from Forschungszentrum Jülich. The author has contributed to research in topics: Water content & Radiometer. The author has an hindex of 17, co-authored 66 publications receiving 1201 citations. Previous affiliations of François Jonard include Université catholique de Louvain & University of Liège.
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Journal ArticleDOI
Modeling Soil Processes: Review, Key Challenges, and New Perspectives
Harry Vereecken,Andrea Schnepf,Jan W. Hopmans,Mathieu Javaux,Dani Or,Tiina Roose,Jan Vanderborght,Michael H. Young,Wulf Amelung,Matt Aitkenhead,Steven D. Allison,Shmuel Assouline,Philippe C. Baveye,Markus Berli,Nicolas Brüggemann,Peter Finke,Markus Flury,Thomas Gaiser,Gerard Govers,Teamrat A. Ghezzehei,Paul D. Hallett,Harrie-Jan Hendricks Franssen,J. Heppell,Rainer Horn,Johan Alexander Huisman,Diederik Jacques,François Jonard,Stefan Kollet,François Lafolie,Krzysztof Lamorski,Daniel Leitner,Alex B. McBratney,Budiman Minasny,Carsten Montzka,Wolfgang Nowak,Ya. A. Pachepsky,José Padarian,Nunzio Romano,Kurt Roth,Youri Rothfuss,Edwin C. Rowe,Andreas Schwen,Jirka Šimůnek,Aaldrik Tiktak,J.C. van Dam,S.E.A.T.M. van der Zee,Hans-Jörg Vogel,Jasper A. Vrugt,Thomas Wöhling,Iain M. Young +49 more
TL;DR: Key challenges in modeling soil processes are identified, including the systematic incorporation of heterogeneity and uncertainty, the integration of data and models, and strategies for effective integration of knowledge on physical, chemical, and biological soil processes.
Journal ArticleDOI
Measuring Soil Water Content with Ground Penetrating Radar: A Decade of Progress
Anja Klotzsche,François Jonard,François Jonard,Majken C. Looms,J. van der Kruk,Johan Alexander Huisman +5 more
TL;DR: A critical overview of recent advances in vadose zone applications of ground penetrating radar (GPR) with a particular focus on new possibilities for multi-offset and borehole GPR measurements, the development of quantitative offground GPR methods, full-waveform inversion of GPR measurement, the potential of time-lapse GRL measurements for process investigations and hydrological parameter estimation, and recent improvements in GPR instrumentation is provided in this article.
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Emerging methods for noninvasive sensing of soil moisture dynamics from field to catchment scale: a review
Heye Bogena,Johan Alexander Huisman,Andreas Güntner,Christof Hübner,Jürgen Kusche,François Jonard,Sibylle Vey,Harry Vereecken +7 more
TL;DR: In this paper, a review of recent advances in non-invasive techniques that allow continuous noninvasive and contactless measurements of soil moisture dynamics at the field to basin scale is presented.
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Brightness Temperature and Soil Moisture Validation at Different Scales During the SMOS Validation Campaign in the Rur and Erft Catchments, Germany
Carsten Montzka,Heye Bogena,Lutz Weihermüller,François Jonard,C. Bouzinac,Juha Kainulainen,Jan E. Balling,Alexander Loew,J. T. dall'Amico,E. Rouhe,Jan Vanderborght,Harry Vereecken +11 more
TL;DR: Results from measurements performed in the Rur and Erft catchments in May and June 2010 indicate severe differences between simulated and observed SMOS data.
Journal ArticleDOI
Value of sun-induced chlorophyll fluorescence for quantifying hydrological states and fluxes: Current status and challenges
François Jonard,François Jonard,S. De Cannière,Nicolas Brüggemann,Pierre Gentine,D. J. Short Gianotti,Guillaume Lobet,Guillaume Lobet,Diego G. Miralles,Carsten Montzka,Brianna Pagán,Uwe Rascher,Harry Vereecken +12 more
TL;DR: In this article, the authors discuss the nature of the plant physiological basis of the fluorescence signal and analyze the current literature linking hydrological states and fluxes to SIF given the connection between photosynthesis and transpiration, through the water use efficiency.