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Ice regime variation impacted by reservoir operation in the Ning-Meng reach of the Yellow River

Author

Listed:
  • Jianxia Chang

    (Xi’an University of Technology)

  • Xuebin Wang

    (Xi’an University of Technology)

  • Yunyun Li

    (Xi’an University of Technology)

  • Yimin Wang

    (Xi’an University of Technology)

Abstract

The Ning-Meng reach of the Yellow River in China is located in a high-latitude area, and river freezes up and breaks up every year, leading to ice flood and disaster. Since the 1990s, due to the rising winter temperatures, river channel shrinkage and impacts of reservoir operation, the river ice regime of the Ning-Meng reach has changed. This paper investigated reservoir operation effect on river ice regime by eliminating the impact of climatic conditions, and the test method could be applied to other rivers, where similar anthropogenic impacts can be suspected to affect the river ice regime. The results show that compared to the statistics when there were no reservoirs, the duration of ice freezing days reduced 8–33 days, and the ice cover thickness was 16–25 cm thinner than that without reservoirs. The average number of ice flood incidents per year decreased from 11.61 to 3.25, and the number of disasters reduced from 1.69 to 1.41. Moreover, the changes induced by reservoirs joint operation may vastly exceed that by single reservoir operation. The smaller is the distance to the upstream reservoir, the more obvious is the impact from the reservoir.

Suggested Citation

  • Jianxia Chang & Xuebin Wang & Yunyun Li & Yimin Wang, 2016. "Ice regime variation impacted by reservoir operation in the Ning-Meng reach of the Yellow River," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 80(2), pages 1015-1030, January.
    • Handle: RePEc:spr:nathaz:v:80:y:2016:i:2:d:10.1007_s11069-015-2010-5
    DOI: 10.1007/s11069-015-2010-5
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    References listed on IDEAS

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    1. Stephanie Morin & Etienne Boucher & Thomas Buffin-Belanger, 2015. "The spatial variability of ice-jam bank morphologies along the Mistassini River (Quebec, Canada): an indicator of the ice-jam regime?," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 77(3), pages 2117-2138, July.
    2. Cheng-Guo Wu & Yi-Ming Wei & Ju-Liang Jin & Qiang Huang & Yu-Liang Zhou & Li Liu, 2015. "Comprehensive evaluation of ice disaster risk of the Ningxia–Inner Mongolia Reach in the upper Yellow River," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 75(2), pages 179-197, February.
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    Cited by:

    1. Dang Luo & Wenxin Mao & Huifang Sun, 2017. "Risk assessment and analysis of ice disaster in Ning–Meng reach of Yellow River based on a two-phased intelligent model under grey information environment," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 88(1), pages 591-610, August.
    2. Wenxin Mao & Wenping Wang & Dang Luo & Huifang Sun, 2019. "Analyzing interactions between risk factors for ice disaster in Ning-Meng reach of Yellow River based on grey rough DEMATEL method," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 97(3), pages 1025-1049, July.

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