Articles | Volume 24, issue 8
Hydrol. Earth Syst. Sci., 24, 4091–4107, 2020
https://doi.org/10.5194/hess-24-4091-2020
Hydrol. Earth Syst. Sci., 24, 4091–4107, 2020
https://doi.org/10.5194/hess-24-4091-2020

Research article 21 Aug 2020

Research article | 21 Aug 2020

Development of a revised method for indicators of hydrologic alteration for analyzing the cumulative impacts of cascading reservoirs on flow regime

Xingyu Zhou et al.

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The main objective of this work is to discuss the cumulative effects on flow regime with the construction of cascade reservoirs. A revised IHA (indicators of hydrologic alteration) method was developed by using a projection pursuit method based on the real-coded accelerated genetic algorithm in this study. Through this method, IHA parameters with a high contribution to hydrological-alteration evaluation could be selected out and given high weight to reduce the redundancy among the IHA metrics.