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Hydrology and Earth System Sciences An interactive open-access journal of the European Geosciences Union
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Short summary
The cosmic-ray neutron sensor can provide soil moisture content averages over areas of roughly half a kilometre by half a kilometre. Although this sensor is usually calibrated using soil samples taken on a single day, we found that multiple sampling days are needed. The calibration results were also affected by the soil wetness conditions of the sampling days. The outcome of this study will help researchers to calibrate/validate new cosmic-ray neutron sensor sites more accurately.
Articles | Volume 19, issue 7
Hydrol. Earth Syst. Sci., 19, 3203–3216, 2015
https://doi.org/10.5194/hess-19-3203-2015
Hydrol. Earth Syst. Sci., 19, 3203–3216, 2015
https://doi.org/10.5194/hess-19-3203-2015

Research article 24 Jul 2015

Research article | 24 Jul 2015

Investigating temporal field sampling strategies for site-specific calibration of three soil moisture–neutron intensity parameterisation methods

J. Iwema et al.

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Short summary
The cosmic-ray neutron sensor can provide soil moisture content averages over areas of roughly half a kilometre by half a kilometre. Although this sensor is usually calibrated using soil samples taken on a single day, we found that multiple sampling days are needed. The calibration results were also affected by the soil wetness conditions of the sampling days. The outcome of this study will help researchers to calibrate/validate new cosmic-ray neutron sensor sites more accurately.
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