Articles | Volume 9, issue 1
https://doi.org/10.5194/gmd-9-283-2016
https://doi.org/10.5194/gmd-9-283-2016
Methods for assessment of models
 | 
26 Jan 2016
Methods for assessment of models |  | 26 Jan 2016

The GEWEX LandFlux project: evaluation of model evaporation using tower-based and globally gridded forcing data

M. F. McCabe, A. Ershadi, C. Jimenez, D. G. Miralles, D. Michel, and E. F. Wood

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Cited articles

Adler, R. F., Huffman, G. J., Chang, A., Ferraro, R., Xie, P. P., Janowiak, J., Rudolf, B., Schneider, U., Curtis, S., Bolvin, D., Gruber, A., Susskind, J., Arkin, P., and Nelkin, E.: The version-2 global precipitation climatology project (GPCP) monthly precipitation analysis (1979–present), J. Hydrometeorol., 4, 1147–1167, 2003.
Allen, R. G.: Using the FAO-56 dual crop coefficient method over an irrigated region as part of an evapotranspiration intercomparison study, J. Hydrol., 229, 27–41, 2000.
Allen, R. G., Tasumi, M., and Trezza, R.: Satellite-Based Energy Balance for Mapping Evapotranspiration with Internalized Calibration (METRIC)-Model, J. Irrig. Drain. E., 133, 380–394, 2007.
Armstrong, R. L., Brodzik, M. J., Knowles, K., and Savoie, M.: Global monthly EASE-Grid snow water equivalent climatology, National Snow and Ice Data Center, Digital media, Boulder, CO, USA, 2005.
Badgley, G., Fisher, J. B., Jiménez, C., Tu, K. P., and Vinukollu, R.: On uncertainty in global terrestrial evapotranspiration estimates from choice of input forcing datasets, J. Hydrometeorol., 16, 1449–1455, https://doi.org/10.1175/JHM-D-14-0040.1, 2015.
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Short summary
In an effort to develop a global terrestrial evaporation product, four models were forced using both a tower and grid-based data set. Comparisons against flux-tower observations from different biome and land cover types show considerable inter-model variability and sensitivity to forcing type. Results suggest that no single model is able to capture expected flux patterns and response. It is suggested that a multi-model ensemble is likely to provide a more stable long-term flux estimate.
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