Transferring global uncertainty estimates from gauged to ungauged catchments

Autor: F. Bourgin, V. Andréassian, C. Perrin, L. Oudin
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: Hydrology and Earth System Sciences, Vol 19, Iss 5, Pp 2535-2546 (2015)
Druh dokumentu: article
ISSN: 1027-5606
1607-7938
DOI: 10.5194/hess-19-2535-2015
Popis: 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.
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