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September 10, 2025Water Resources ResearchOpen Access

Performance Mapping and Weighting for the Evapotranspiration Models of the OpenET Ensemble

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Performance mapping improves evapotranspiration accuracy in diverse land cover types, indicating enhanced hydrologic modeling effectiveness.

The weighted ensemble reduces mean absolute error by 23% in shrublands and mixed forests, improving evapotranspiration accuracy significantly.
Mapping performance metrics reveals how land cover type and precipitation impact evapotranspiration model accuracy across the US.
The OpenET collaboration demonstrates that a performance-weighted ensemble of evapotranspiration models outperforms individual models.
Developed weight maps can guide model selection and provide insights into refining hydrologic model accuracy.

Reitz et al. (2025) studied this question.

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Performance mapping improves evapotranspiration accuracy in diverse land cover types, indicating enhanced hydrologic modeling effectiveness.