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.
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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- The complementary value of cosmic-ray neutron sensing and snow covered area products for snow hydrological modelling P. Schattan et al. 10.1016/j.rse.2019.111603
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- A dense network of cosmic-ray neutron sensors for soil moisture observation in a highly instrumented pre-Alpine headwater catchment in Germany B. Fersch et al. 10.5194/essd-12-2289-2020
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- Testing a novel sensor design to jointly measure cosmic-ray neutrons, muons and gamma rays for non-invasive soil moisture estimation S. Gianessi et al. 10.5194/gi-13-9-2024
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- Soil Moisture and Air Humidity Dependence of the Above-Ground Cosmic-Ray Neutron Intensity M. Köhli et al. 10.3389/frwa.2020.544847
- Detecting Ground Level Enhancements Using Soil Moisture Sensor Networks A. Hands et al. 10.1029/2021SW002800
- Towards disentangling heterogeneous soil moisture patterns in cosmic-ray neutron sensor footprints D. Rasche et al. 10.5194/hess-25-6547-2021
- A Comparative Analysis of Remote Sensing Soil Moisture Datasets Fusion Methods: Novel LSTM Approach Versus Widely Used Triple Collocation Technique H. Zhao et al. 10.1109/JSTARS.2024.3455549
- First implementation of a new cross-disciplinary observation strategy for heavy precipitation events from formation to flooding A. Wieser et al. 10.1007/s12665-023-11050-7
- Retrieval of High-Resolution Soil Moisture through Combination of Sentinel-1 and Sentinel-2 Data C. Ma et al. 10.3390/rs12142303
- Assimilation of Groundwater Level and Soil Moisture Data in an Integrated Land Surface‐Subsurface Model for Southwestern Germany C. Hung et al. 10.1029/2021WR031549
- Comment on ‘Examining the variation of soil moisture from cosmic-ray neutron probes footprint: experimental results from a COSMOS-UK site’ by Howells, O.D., Petropoulos, G.P., et al., Environ Earth Sci 82, 41 (2023) L. Scheiffele et al. 10.1007/s12665-023-11186-6
- Cosmic‐ray Neutron Rover Surveys of Field Soil Moisture and the Influence of Roads M. Schrön et al. 10.1029/2017WR021719
- Potential of Thermal Neutrons to Correct Cosmic‐Ray Neutron Soil Moisture Content Measurements for Dynamic Biomass Effects J. Jakobi et al. 10.1029/2022WR031972
- Monitoring of Snowpack Dynamics With Cosmic-Ray Neutron Probes: A Comparison of Four Conversion Methods H. Bogena et al. 10.3389/frwa.2020.00019
- Applicability of cosmic-ray neutron sensor for measuring soil moisture at the agricultural-pastoral ecotone in northwest China X. Tan et al. 10.1007/s11430-020-9650-2
- Field Testing of Gamma-Spectroscopy Method for Soil Water Content Estimation in an Agricultural Field S. Becker et al. 10.3390/s24072223
- Making sense of cosmic-ray soil moisture measurements and eddy covariance data with regard to crop water use and field water balance E. Wang et al. 10.1016/j.agwat.2018.04.017
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Latest update: 14 Dec 2024
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...