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A Multi-Criteria Combination Approach to Determine Spatial Intervention Prioritization of Urban Flood Based on Source Tracking Analysis

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Abstract

Under the increasing stormwater events and consequent flood hazards, integrated flood management is increasingly becoming the most essential mitigation strategy to maximize the effectiveness of runoff reduction at the limitation of public budget. The research is aimed at proposed a multi-criteria combination approach to determine spatial intervention prioritization of urban flood based on source tracking analysis. First, Jinhua underpass catchment where an underpass is vulnerable to the impact of stormwater is selected as the case study. Second, source tracking analysis, which combining hydrodynamic model with rainfall-tracking model, is used to obtain the detailed dynamic information including water depth and contribution rate of different source areas. On the basis of source tracking analysis, from the perspective of source-process-end runoff volume management, five types of criteria are presented to evaluate the spatial intervention priority of each sub-area, entropy weight method is applied to combine useful information reflected by criteria 1–5 to form a comprehensive criterion identifying spatial priority of flood management. Notably, the results indicate that criteria extracted by source tracking analysis are highly effective in evaluating spatial priority for urban flood management. Specifically, criteria 1–5 estimate the importance in addressing runoff for different sub-areas from the view of source-progress-end, respectively. Moreover, the comprehensive criterion based on entropy weight method, an objective comprehensive evaluation method, can be used to guide the spatial prioritization of urban flood management for planners and decision-makers with respect to multi-perspective.

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Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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Funding

This work is partly supported by the National Natural Science Foundations of China (Nos. 52079106, 52009104), the Sino-German Mobility Program (No. M-0427), Key science and technology projects of Power China (DJ-ZDXM-2022–41), Major company-level science and technology projects of Northwest Engineering Corporation Limited, Power China (XBY-ZDKJ-2022–9), Key R&D Program of Ningxia of China (2022BEG02020).

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Conceptualization and Methodology: J. Hou, X. Wang; Writing-original draft preparation: X. Wang; Material preparation, collection and analysis: X. Wang, G. Hu, X. Gao; Supervision: R. Shen; Funding acquisition: J. Hou.

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Correspondence to Jingming Hou.

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We declare that we have no financial and personal relationships with other people or organizations that can inappropriately influence our work, there is no professional or other personal interest of any nature or kind in any product, service and company that could be construed as influencing the position presented in, or the review of, the manuscript entitled “A multi-criteria combination approach to determine spatial intervention prioritization of urban flood based on source tracking analysis”.

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11269_2023_3700_MOESM1_ESM.docx

Supplementary file1 Plots of contribution rate at t = 4 hour for all source areas can be shown in Supplemental material (DOCX 25190 KB)

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Wang, X., Hou, J., Hu, G. et al. A Multi-Criteria Combination Approach to Determine Spatial Intervention Prioritization of Urban Flood Based on Source Tracking Analysis. Water Resour Manage 38, 893–914 (2024). https://doi.org/10.1007/s11269-023-03700-z

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  • DOI: https://doi.org/10.1007/s11269-023-03700-z

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