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Deduction of sudden rainstorm scenarios: integrating decision makers' emotions, dynamic Bayesian network and DS evidence theory

Author

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  • Xiaoliang Xie

    (Hunan University of Technology and Business
    Key Laboratory of Statistical Learning and Intelligent Computing in Hunan Province)

  • Yuzhang Tian

    (Key Laboratory of Statistical Learning and Intelligent Computing in Hunan Province
    Hunan University of Technology and Business)

  • Guo Wei

    (University of North Carolina at Pembroke)

Abstract

Event scenarios serve as the basis for emergency decision making after sudden disasters, and the accuracy of scenario deduction directly determines the effectiveness of emergency management implementation. On July 20, 2021, an exceptionally heavy rainstorm disaster occurred in Zhengzhou, Henan Province, China, causing serious urban waterlogging, river floods, flash floods and landslides and resulting in major casualties and property losses:14.79 million people affected, 398 people killed or missing (380 people in Zhengzhou) and a direct economic loss of 120.06 billion RMB. In order to investigate the complex evolution process of this disaster, a dynamic Bayesian network, evidence theory and emotion update mechanism are integrated to develop an efficient and effective scenario deduction model, with an emphasis on combining subjective and objective factors. In this model, more attention is given to subjective factors such as decision makers' emotions. The elements of scenario deduction are classified into the situation status, meteorological factor, emergency activities, decision makers' emotions and emergency goals, the coupling relationship between the elements are comprehensively analyzed, and the influence of these elements on the evolution mechanism of the rainstorm disaster is investigated, so as to facilitate targeted emergency management measures for the rescue operations. The empirical results show that the proposed dynamic Bayesian network can effectively simulate the dynamic change process of scenario deduction, the improved Dempster–Shafer evidence theory can reduce the subjectivity of the model in dealing with the uncertainty of the evolution process, and the emotion update mechanism can adequately quantify and decrease the influence caused by the emotional changes of decision makers. The model may better replicate actual events, and it may apply to the scenario deduction of other disasters, making an impact on the study of sudden catastrophes.

Suggested Citation

  • Xiaoliang Xie & Yuzhang Tian & Guo Wei, 2023. "Deduction of sudden rainstorm scenarios: integrating decision makers' emotions, dynamic Bayesian network and DS evidence theory," 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. 116(3), pages 2935-2955, April.
    • Handle: RePEc:spr:nathaz:v:116:y:2023:i:3:d:10.1007_s11069-022-05792-z
    DOI: 10.1007/s11069-022-05792-z
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    References listed on IDEAS

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    1. Stephane Hallegatte & Joeri Rogelj & Myles Allen & Leon Clarke & Ottmar Edenhofer & Christopher B. Field & Pierre Friedlingstein & Line van Kesteren & Reto Knutti & Katharine J. Mach & Michael Mastran, 2016. "Mapping the climate change challenge," Nature Climate Change, Nature, vol. 6(7), pages 663-668, July.
    2. José I. Barredo & Guy Engelen, 2010. "Land Use Scenario Modeling for Flood Risk Mitigation," Sustainability, MDPI, vol. 2(5), pages 1-18, May.
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    Cited by:

    1. Jieyin Lyu & Shouqin Zhou & Jingang Liu & Bingchun Jiang, 2023. "Intelligent-Technology-Empowered Active Emergency Command Strategy for Urban Hazardous Chemical Disaster Management," Sustainability, MDPI, vol. 15(19), pages 1-28, September.

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