Articles | Volume 20, issue 4
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,, 2008.
Albergel, C., Rüdiger, C., Carrer, D., Calvet, J.-C., Fritz, N., Naeimi, V., Bartalis, Z., and Hasenauer, S.: An evaluation of ASCAT surface soil moisture products with in-situ observations in Southwestern France, Hydrol. Earth Syst. Sci., 13, 115–124,, 2009.
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,, 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,, 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,, 2010a.
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.