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.

Data sets

Dataset of daily climate data from Chinese surface stations for global exchange, continuing from 1 January 1951 CMDC https://data.cma.cn/en/?r=data/detail&dataCode=SURF_CLI_CHN_MUL_DAY_CES

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Short summary
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.