Articles | Volume 21, issue 2
https://doi.org/10.5194/hess-21-1051-2017
https://doi.org/10.5194/hess-21-1051-2017
Research article
 | 
20 Feb 2017
Research article |  | 20 Feb 2017

A case study of field-scale maize irrigation patterns in western Nebraska: implications for water managers and recommendations for hyper-resolution land surface modeling

Justin Gibson, Trenton E. Franz, Tiejun Wang, John Gates, Patricio Grassini, Haishun Yang, and Dean Eisenhauer

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Cited articles

Allen, R. G., Pereira, L. S., Raes, D., and Smith, M.: Crop evapotranspiration: Guidelines for computing crop requirements, Irrig. Drain. Pap. No. 56, FAO, Rome, Italy, https://doi.org/10.1016/j.eja.2010.12.001, 1998.
Butler, J. J., Whittemore, D. O., Wilson, B. B., and Bohling, G. C.: A new approach for assessing the future of aquifers supporting irrigated agriculture, Geophys. Res. Lett., 43, 2004–2010, https://doi.org/10.1002/2016gl067879, 2016.
Chaney, N. W., Wood, E. F., McBratney, A. B., Hempel, J. W., Nauman, T. W., Brungard, C. W., and Odgers, N. P.: POLARIS: A 30-meter probabilistic soil series map of the contiguous United States, Geoderma, 274, 54–67, https://doi.org/10.1016/j.geoderma.2016.03.025, 2016.
Dai, A.: Drought under global warming: A review, Wiley Interdiscip. Rev. Clim. Chang., 2, 45–65, https://doi.org/10.1002/wcc.81, 2011.
de Vrese, P., Hagemann, S., and Claussen, M.: Asian irrigation, African rain: Remote impacts of irrigation, Geophys. Res. Lett., 43, 3737–3745, https://doi.org/10.1002/2016gl068146, 2016.
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Short summary
The human use of water for irrigation is often ignored in models and operational forecasts. We describe four plausible and relatively simple irrigation routines that can be coupled to the next generation of models. The routines are tested against a unique irrigation dataset from western Nebraska. The most aggressive water-saving irrigation routine indicates a potential irrigation savings of 120 mm yr−1 and yield losses of less than 3 % against the crop model benchmark and historical averages.