Measuring soil moisture content non‐invasively at intermediate spatial scale using cosmic‐ray neutrons

By Marek Zreda, Darin Desilets, Ty Paul Andrew Ferré, Russell L. Scott. 2008

513 citations recorded by the source corpus.

Subfields: Atmospheric Science, Civil and Structural Engineering, Environmental Engineering

View Paper: https://www.semanticscholar.org/paper/62d7b20033bd0d7fd921536da03e192dc270b8cf

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Citations in the corpus

Footprint characteristics revised for field‐scale soil moisture monitoring with cosmic‐ray neutrons (2015, methodology): “In the attempt to reduce computational effort, other studies identified the high-energy component of the cosmic-ray neutron spectrum as the precursor for the generation of fast neutrons in the soil [Zreda et al., 2008; Desilets and Zreda, 2013; Shuttleworth et al., 2013].”
Nature's neutron probe: Land surface hydrology at an elusive scale with cosmic rays (2010, methodology): “More recently, applications to hydrology have been recognized [Zreda et al., 2008].”
A universal calibration function for determination of soil moisture with cosmic-ray neutrons (2012, methodology): “The recently developed cosmicray soil moisture method (Zreda et al., 2008) and probe by Hydroinnova LLC, Albuquerque, NM, USA, allow for near surface soil moisture measurements (∼ 12 to 70 cm) at intermediate horizontal scales (∼ 35 ha) (Desilets et al., 2010).”
Estimating error cross‐correlations in soil moisture data sets using extended collocation analysis (2016, background): “Data sets that meet the above described requirements are provided by the networks: AMMA-CATCH [Pellarin et al., 2009], ARM (http://www.arm.gov/), COSMOS [Zreda et al., 2008], GTK, HOBE [Bircher et al., 2012], ICN [Hollinger and Isard, 1994], MAQU [Su et al., 2011], MOL-RAO (http://www.dwd.de/mol/), ”
The International Soil Moisture Network: serving Earth system science for over a decade (2021, background): “National Science Foundation as a 4-year project for demonstration of the then-new technology of sensing soil moisture with cosmogenic neutrons (Zreda et al., 2008).”
Pursuing the method of multiple working hypotheses for hydrological modeling (2011, methodology): “Advances are also evident in the development of techniques for measuring hydrological processes over larger spatial scales, including the use of cosmic ray sensors for soil moisture estimation [Zreda et al., 2008], the use of GPS for soil moisture and snow monitoring [Larson et al.”
The Effect of Atmospheric Water Vapor on Neutron Count in the Cosmic-Ray Soil Moisture Observing System (2013, methodology): “Recently, the assessment of soil moisture derived from measurements of cosmic-ray neutron intensity in air above the soil surface (Zreda et al. 2008) has emerged as a novel, noninvasive technique capable of providing areaaveragedmeasurements of soil moisture at the horizontal scale of hectometers…”
Measurement depth of the cosmic ray soil moisture probe affected by hydrogen from various sources (2012, methodology): “By using a Monte Carlo particle transport code [Pelowitz, 2005], the probe has been found to have an effective horizontal footprint of 335 m in radius at sea level with a weak dependence on soil moisture [Zreda et al., 2008].”
Improving calibration and validation of cosmic-ray neutron sensors in the light of spatial sensitivity (2017, methodology): “After the measurement method was first presented by Zreda et al. (2008), many studies were dedicated to calibrating the sensors and to assessing the performance in comparison to conventional instruments (e.g., Rivera Villarreyes et al., 2011; Franz et al., 2012a; Coopersmith et al., 2014; Hawdon et…”
Footprint diameter for a cosmic‐ray soil moisture probe: Theory and Monte Carlo simulations (2013, methodology): “The exceptional neutron scattering properties of hydrogen make the background neutron intensity highly sensitive to the presence of hydrogen-rich materials such as water [Zreda et al., 2008].”
Advancing data assimilation in operational hydrologic forecasting: progresses, challenges, and emerging opportunities (2012, background): “Neutron activity measured by cosmic ray devices provides an interesting new data source for soil moisture contents for the intermediate scale of several hectares (Zreda et al., 2008).”