Articles | Volume 8, issue 4
Geosci. Model Dev., 8, 1233–1244, 2015
Geosci. Model Dev., 8, 1233–1244, 2015

Methods for assessment of models 29 Apr 2015

Methods for assessment of models | 29 Apr 2015

Reduction of predictive uncertainty in estimating irrigation water requirement through multi-model ensembles and ensemble averaging

S. Multsch et al.

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Cited articles

ABARES: Land Use of Australia Version 4 2005/2006, Department of Agriculture Fisheries and Forestry, Australian Bureau of Agricultural and Resource Economics, 2010.
ABS: Water Use on Australian Farms Murray-Darling basin 2005-06, 46180DO012, 2006.
Allen, R. G.: REF-ET user's guide, University of Idaho Kimberly Research Stations, Kimberly, 2003.
Allen, R. G., Pereira, L. S., Raes, D., and Smith, M.: Crop evapotranspiration-Guidelines for computing crop water requirements-FAO Irrigation and drainage paper 56, FAO, Rome, 300, 6541, 1998.
Balkovič, J., van der Velde, M., Schmid, E., Skalský, R., Khabarov, N., Obersteiner, M., Stürmer, B., and Xiong, W.: Pan-European crop modelling with EPIC: Implementation, up-scaling and regional crop yield validation, Agr. Syst., 120, 61–75, 2013.
Short summary
Irrigation agriculture is required to sustain yields that allow feeding the world population. A robust assessment of irrigation requirement (IRR) relies on a sound quantification of evapotranspiration (ET). We prepared a multi-model ensemble considering several ET methods and investigate uncertainties in simulating IRR. More generally, we provide an example of the value of investigating the uncertainty in models that may be used to inform policy-making and to elaborate best management practices.