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- W4206811207 abstract "<strong class=journal-contentHeaderColor>Abstract.</strong> Detailed and reliable assessment of direct economic losses of flood disasters is important for emergency dispatch and risk management in small- and medium-sized cities. In this study, a single flood disaster in Lishui city in 2014 was taken as an example to study and verify a method for rapid and detailed assessment of direct economic loss. First, based on a field investigation, the inundation data simulated by the one-dimensional hydrodynamic model and geographic information system (GIS) analysis method were verified. Next, the urban land use map and high-resolution land use classifications based on remote sensing data were fused and combined with expert questionnaire surveys, thereby providing the 47 types and values of land use. Then, based on the previous depthâdamage function in the past study, the vulnerability curves of 47 types of land use in Liandu district were fitted by the lognormal cumulative distribution function and then calibrated using disaster loss report data. Finally, the distributions of the loss ratio and loss value were estimated by spatial analysis. It is found that the land use data have detailed types and value attributes as well as high resolution. Secondly, the vulnerability curves after function fitting and calibration effectively reflect the change characteristics of land use loss ratio in this area. Finally, except for the three types of land for agriculture, recreational and sports facilities, and green parking spaces, the optimized simulated total loss is CNYâ322.6 million, which is 0.16â% higher than the statistics report data. The estimated loss ratio and loss value can reliably reflect the distribution pattern of disaster losses in detail, which can be applied by government and private sectors to implement effective disaster reduction and relief measures." @default.
- W4206811207 created "2022-01-26" @default.
- W4206811207 creator A5035590977 @default.
- W4206811207 date "2021-07-21" @default.
- W4206811207 modified "2023-09-30" @default.
- W4206811207 title "Reply on RC1" @default.
- W4206811207 doi "https://doi.org/10.5194/nhess-2021-163-ac1" @default.
- W4206811207 hasPublicationYear "2021" @default.
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