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Transferring global uncertainty estimates from gauged to ungauged catchments

机译:将全球不确定性估计从已评估流域转移到未评估流域

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Predicting streamflow hydrographs in ungauged catchments is challenging, and accompanying the estimates with realistic uncertainty bounds is an even more complex task. In this paper, we present a method to transfer global uncertainty estimates from gauged to ungauged catchments and we test it over a set of 907 catchments located in France, using two rainfall–runoff models. We evaluate the quality of the uncertainty estimates based on three expected qualities: reliability, sharpness, and overall skill. The robustness of the method to the availability of information on gauged catchments was also evaluated using a hydrometrical desert approach. Our results show that the method presents advantageous perspectives, providing reliable and sharp uncertainty bounds at ungauged locations in a majority of cases.
机译:预测无水集水区的径流水文图具有挑战性,并且将估计与现实的不确定性界限相结合是一项更加复杂的任务。在本文中,我们提出了一种将全球不确定性估计值从测量集水区转移到未测量集水区的方法,并使用两个降雨-径流模型对位于法国的907个集水区进行了测试。我们基于三个预期质量来评估不确定性估计的质量:可靠性,清晰度和整体技能。还使用水文沙漠法评估了该方法对可获取流域的信息的鲁棒性。我们的结果表明,该方法提出了有利的观点,在大多数情况下,在未装填的位置上提供了可靠且清晰的不确定性界限。

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