Design flood estimation for global river networks based on machine learning models
Design flood estimation for global river networks based on machine learning models
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基于机器学习模型设计全球河网洪水估算
DOI:
10.5194/hess-25-5981-2021
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发表时间:
2021-11
影响因子:
6.3
通讯作者:
Bo Pang
中科院分区:
文献类型:
--
作者:
Gang Zhao;Paul Bates;Jeffrey Neal;Bo Pang
Abstract. Design flood estimation is a fundamental task in.hydrology. In this research, we propose a machine-learning-based approach to.estimate design floods globally. This approach involves three stages: (i)estimating at-site flood frequency curves for global gauging stations using the.Anderson–Darling test and a Bayesian Markov chain Monte Carlo (MCMC) method; (ii)clustering these.stations into subgroups using a K-means model based on 12 globally.available catchment descriptors; and (iii)developing a regression model in.each subgroup for regional design flood estimation using the same.descriptors. A total of 11 793 stations globally were selected for model.development, and three widely used regression models were compared for design.flood estimation. The results showed that (1)the proposed approach.achieved the highest accuracy for design flood estimation when using all.12 descriptors for clustering; and the performance of the regression was.improved by considering more descriptors during training and validation; (2)a support vector machine regression provided the highest prediction.performance amongst all regression models tested, with a root mean square.normalised error of 0.708 for 100-year return period flood estimation; (3)100-year design floods in tropical, arid, temperate, cold and polar climate.zones could be reliably estimated (i.e.
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影响因子:
6.4
作者:
Jun Wang;Zhongmin Liang;Yiming Hu;Dong Wang
通讯作者:
Jun Wang;Zhongmin Liang;Yiming Hu;Dong Wang
影响因子:
6.4
作者:
C. Shu;T. Ouarda
通讯作者:
C. Shu;T. Ouarda
影响因子:
--
作者:
E. Doxsey-Whitfield;K. Macmanus;Susana B. Adamo;L. Pistolesi;J. Squires;O. Borkovska;S. Baptista
通讯作者:
E. Doxsey-Whitfield;K. Macmanus;Susana B. Adamo;L. Pistolesi;J. Squires;O. Borkovska;S. Baptista
影响因子:
30.7
作者:
Winsemius, Hessel C.;Aerts, Jeroen C. J. H.;Ward, Philip J.
通讯作者:
Ward, Philip J.
影响因子:
6.7
作者:
M. Trigg;C. Birch;J. Neal;P. Bates;Andrew Smith;C. Sampson;Dai Yamazaki;Y. Hirabayashi;F. Pappenberger;E. Dutra;P. Ward;H. Winsemius;P. Salamon;F. Dottori;R. Rudari;M. Kappes;A. Simpson;G. Hadzilacos;T. Fewtrell
通讯作者:
M. Trigg;C. Birch;J. Neal;P. Bates;Andrew Smith;C. Sampson;Dai Yamazaki;Y. Hirabayashi;F. Pappenberger;E. Dutra;P. Ward;H. Winsemius;P. Salamon;F. Dottori;R. Rudari;M. Kappes;A. Simpson;G. Hadzilacos;T. Fewtrell