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Open AccessArticle

A Quantitative Flood-Related Building Damage Evaluation Method Using Airborne LiDAR Data and 2-D Hydraulic Model

1
Changjiang River Scientific Research Institute, Changjiang Water Resources Commission, Wuhan 430010, China
2
School of Geography and Ocean Science, Nanjing University, Nanjing 210023, China
3
Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing 210023, China
*
Author to whom correspondence should be addressed.
Water 2019, 11(5), 987; https://doi.org/10.3390/w11050987
Received: 22 March 2019 / Revised: 21 April 2019 / Accepted: 26 April 2019 / Published: 10 May 2019
(This article belongs to the Special Issue Flood Modelling: Regional Flood Estimation and GIS Based Techniques)
The evaluation of building damage is of great significance for flood management. Chinese floodplains usually contain small- and medium-sized towns with many other scattered buildings. Detailed building information is usually scarce, making it difficult to evaluate flood damage. We developed an evaluation method for building damage by using airborne LiDAR data to obtain large-area, high-precision building information and digital elevation models (DEMs) for potentially affected areas. These data were then used to develop a two-dimensional (2-D) flood routing model. Next, flood loss rate curves were generated by fitting historical damage data to allow rapid evaluation of single-building losses. Finally, we conducted an empirical study based on the Gongshuangcha detention basin in China’s Dongting Lake region. The results showed that the use of airborne LiDAR data for flood-related building damage evaluation can improve the assessment accuracy and efficiency; this approach is especially suitable for rural areas where building information is scarce. View Full-Text
Keywords: flood damage evaluation; flood damage prediction; LiDAR; 2-D hydraulic model; China flood damage evaluation; flood damage prediction; LiDAR; 2-D hydraulic model; China
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Shen, D.; Qian, T.; Chen, W.; Chi, Y.; Wang, J. A Quantitative Flood-Related Building Damage Evaluation Method Using Airborne LiDAR Data and 2-D Hydraulic Model. Water 2019, 11, 987.

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