Articles | Volume 21, issue 10
https://doi.org/10.5194/hess-21-5009-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/hess-21-5009-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| Highlight paper
| 
06 Oct 2017
Research article | Highlight paper |
| 06 Oct 2017
Improving calibration and validation of cosmic-ray neutron sensors in the light of spatial sensitivity
Dept. Monitoring and Exploration Technologies, Helmholtz Centre for Environmental Research – UFZ, Leipzig, Germany
Dept. Computational Hydrosystems, Helmholtz Centre for Environmental Research – UFZ, Leipzig, Germany
Markus Köhli
Dept. Monitoring and Exploration Technologies, Helmholtz Centre for Environmental Research – UFZ, Leipzig, Germany
Physikalisches Institut, Heidelberg University, Heidelberg, Germany
Physikalisches Institut, University of Bonn, Bonn, Germany
Lena Scheiffele
Institute of Earth and Environmental Science, University of Potsdam, Postdam, Germany
Joost Iwema
Faculty of Engineering, University of Bristol, Bristol, UK
Heye R. Bogena
Agrosphere Institute (IBG-3), Forschungszentrum Jülich GmbH, Jülich, Germany
Ling Lv
Dept. of Plants, Soils and Climate, Utah State University, Logan, USA
Edoardo Martini
Dept. Monitoring and Exploration Technologies, Helmholtz Centre for Environmental Research – UFZ, Leipzig, Germany
Gabriele Baroni
Dept. Computational Hydrosystems, Helmholtz Centre for Environmental Research – UFZ, Leipzig, Germany
Institute of Earth and Environmental Science, University of Potsdam, Postdam, Germany
Rafael Rosolem
Faculty of Engineering, University of Bristol, Bristol, UK
Cabot Institute, University of Bristol, Bristol, England
Jannis Weimar
Physikalisches Institut, Heidelberg University, Heidelberg, Germany
Juliane Mai
Dept. Computational Hydrosystems, Helmholtz Centre for Environmental Research – UFZ, Leipzig, Germany
Dept. of Civil and Environmental Engineering, University of Waterloo, Waterloo, Canada
Matthias Cuntz
Dept. Computational Hydrosystems, Helmholtz Centre for Environmental Research – UFZ, Leipzig, Germany
INRA, Université de Lorraine, UMR1137, Ecology et Ecophysiologie Forestière, Champenoux, France
Corinna Rebmann
Dept. Computational Hydrosystems, Helmholtz Centre for Environmental Research – UFZ, Leipzig, Germany
Sascha E. Oswald
Institute of Earth and Environmental Science, University of Potsdam, Postdam, Germany
Peter Dietrich
Dept. Monitoring and Exploration Technologies, Helmholtz Centre for Environmental Research – UFZ, Leipzig, Germany
Ulrich Schmidt
Physikalisches Institut, Heidelberg University, Heidelberg, Germany
Steffen Zacharias
Dept. Monitoring and Exploration Technologies, Helmholtz Centre for Environmental Research – UFZ, Leipzig, Germany
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Latest update: 03 Dec 2025
Short summary
A field-scale average of near-surface water content can be sensed by cosmic-ray neutron detectors. To interpret, calibrate, and validate the integral signal, it is important to account for its sensitivity to heterogeneous patterns like dry or wet spots. We show how point samples contribute to the neutron signal based on their depth and distance from the detector. This approach robustly improves the sensor performance and data consistency, and even reveals otherwise hidden hydrological features.
A field-scale average of near-surface water content can be sensed by cosmic-ray neutron...
