• Corpus ID: 235732096

An extended watershed-based zonal statistical AHP model for flood risk estimation: Constraining runoff converging related indicators by sub-watersheds

@article{Zhang2021AnEW,
  title={An extended watershed-based zonal statistical AHP model for flood risk estimation: Constraining runoff converging related indicators by sub-watersheds},
  author={Hongping Zhang and Zhenfeng Shao and Jinqi Zhao and Xiao Huang and Jie Yang and Bingyuan Hu and Wenfu Wu},
  journal={ArXiv},
  year={2021},
  volume={abs/2107.02043}
}
Floods are highly uncertain events, occurring in different regions, with varying prerequisites and intensities. A highly reliable flood disaster risk map can help reduce the impact of floods for flood management, disaster decreasing, and urbanization resilience. In flood risk estimation, the widely used analytic hierarchy process (AHP) usually adopts pixel as a basic unit, it cannot capture the similar threaten caused by neighborhood source flooding cells at sub-watershed scale. Thus, an… 
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Evaluating the weight sensitivity in AHP-based flood risk estimation models
TLDR
The results suggest that the performance of the pixelbased AHP model fluctuates intensively given different definitions of judgment matrixes, while the performances of sub-watershed-based A HP models fluctuates considerably less than that of the pixels based model.

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