Articles | Volume 20, issue 4
https://doi.org/10.5194/hess-20-1373-2016
https://doi.org/10.5194/hess-20-1373-2016
Research article
 | 
07 Apr 2016
Research article |  | 07 Apr 2016

Estimating field-scale root zone soil moisture using the cosmic-ray neutron probe

Amber M. Peterson, Warren D. Helgason, and Andrew M. Ireson

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Cited articles

Albergel, C., Rüdiger, C., Pellarin, T., Calvet, J.-C., Fritz, N., Froissard, R., Suquia, D., Petitpa, A., Piguet, B., and Martin, E.: From near-surface to root zone soil moisture using an exponential filter: an assessment of the method based on in-situ observations and model simulations, Hydrol. Earth Syst. Sci., 12, 1323–1337, https://doi.org/10.5194/hess-12-1323-2008, 2008.
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Biswas, A., Chau, H. W., Bedard-Haughn, A. K., and Si, B. C.: Factors controlling soil water storage in the hummocky landscape of the Prairie Pothole Region of North America, Can. J. Soil Sci., 92, 649–663, https://doi.org/10.4141/cjss2011-045, 2012.
Bogena, H. R., Huisman, J. A., Baatz, R., Hendriks Franssen, H.-J., and Vereecken, H.: Accuracy of the cosmic-ray soil water content probe in humid forest ecosystems: The worst case scenario, Water Resour. Res., 49, 5778–5791, https://doi.org/10.1002/wrcr.20463, 2013.
Brocca, L., Melone, F., Moramarco, T., Wagner, W., Naeimi, V., Bartalis, Z., and Hasenauer, S.: Improving runoff prediction through the assimilation of the ASCAT soil moisture product, Hydrol. Earth Syst. Sci., 14, 1881–1893, https://doi.org/10.5194/hess-14-1881-2010, 2010a.
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Short summary
Remote sensing techniques can provide useful large-scale estimates of soil moisture. However, these methods often only sense near-surface soil moisture, whereas many applications require estimates of the entire root zone. In this study we propose and test methods to "depth-scale" the shallow soil moisture measurements obtained using the cosmic-ray neutron probe to represent the entire root zone, thereby improving the applicability of this measurement approach.