A study on flood hazard and GDP exposure for the Foshan-Zhongshan region in the Pearl River Delta, China

Flood has caused 20% of the worldwide economic loss arising from catastrophe events over 2008 to 2018. It ranks as the most frequent peril in China. These observations inspired the MEng project to study the flood risk of China’s Pearl River Delta region with its high asset concentration, and specifi...

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Main Author: Zhang, Qi
Other Authors: Lo Yat-Man, Edmond
Format: Thesis-Master by Research
Language:English
Published: Nanyang Technological University 2020
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Online Access:https://hdl.handle.net/10356/143277
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spelling sg-ntu-dr.10356-1432772020-10-28T08:29:14Z A study on flood hazard and GDP exposure for the Foshan-Zhongshan region in the Pearl River Delta, China Zhang, Qi Lo Yat-Man, Edmond School of Civil and Environmental Engineering AXIS Specialty Limited (Singapore Branch) Institute of Catastrophe Risk Management (ICRM) cymlo@ntu.edu.sg Engineering::Civil engineering::Water resources Flood has caused 20% of the worldwide economic loss arising from catastrophe events over 2008 to 2018. It ranks as the most frequent peril in China. These observations inspired the MEng project to study the flood risk of China’s Pearl River Delta region with its high asset concentration, and specifically for a basin within. A hydrological model was constructed using HEC-HMS for this basin using only publicly accessible data sources as data availability is often restricted. The HEC-HMS simulation model was built based on two recent historical flood events occurring in 2017, a high river inflow event and 2018, a high local precipitation event. Needed river rating curves for mid to downstream stations have further been developed to provide relationships between observed water level and the river discharge as data for the latter is often unavailable. A more severe flood event was synthesized by having the high 2017 upstream river inflows and the high 2018 local precipitation occurring simultaneously. Climate change impact has also been included by having the precipitation intensity increased. An empirical approach was developed to estimate the flood extent as resulting from river overflows. This enabled the area flooded to be assessed in extent and depth, particularly for the more severe synthetic events, along with the GDP at risk from the flooding. Master of Engineering 2020-08-18T08:33:39Z 2020-08-18T08:33:39Z 2020 Thesis-Master by Research Zhang, M. (2020). A study on flood hazard and GDP exposure for the Foshan-Zhongshan region in the Pearl River Delta, China. Master's thesis, Nanyang Technological University, Singapore. https://hdl.handle.net/10356/143277 10.32657/10356/143277 en This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0). application/pdf Nanyang Technological University
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Civil engineering::Water resources
spellingShingle Engineering::Civil engineering::Water resources
Zhang, Qi
A study on flood hazard and GDP exposure for the Foshan-Zhongshan region in the Pearl River Delta, China
description Flood has caused 20% of the worldwide economic loss arising from catastrophe events over 2008 to 2018. It ranks as the most frequent peril in China. These observations inspired the MEng project to study the flood risk of China’s Pearl River Delta region with its high asset concentration, and specifically for a basin within. A hydrological model was constructed using HEC-HMS for this basin using only publicly accessible data sources as data availability is often restricted. The HEC-HMS simulation model was built based on two recent historical flood events occurring in 2017, a high river inflow event and 2018, a high local precipitation event. Needed river rating curves for mid to downstream stations have further been developed to provide relationships between observed water level and the river discharge as data for the latter is often unavailable. A more severe flood event was synthesized by having the high 2017 upstream river inflows and the high 2018 local precipitation occurring simultaneously. Climate change impact has also been included by having the precipitation intensity increased. An empirical approach was developed to estimate the flood extent as resulting from river overflows. This enabled the area flooded to be assessed in extent and depth, particularly for the more severe synthetic events, along with the GDP at risk from the flooding.
author2 Lo Yat-Man, Edmond
author_facet Lo Yat-Man, Edmond
Zhang, Qi
format Thesis-Master by Research
author Zhang, Qi
author_sort Zhang, Qi
title A study on flood hazard and GDP exposure for the Foshan-Zhongshan region in the Pearl River Delta, China
title_short A study on flood hazard and GDP exposure for the Foshan-Zhongshan region in the Pearl River Delta, China
title_full A study on flood hazard and GDP exposure for the Foshan-Zhongshan region in the Pearl River Delta, China
title_fullStr A study on flood hazard and GDP exposure for the Foshan-Zhongshan region in the Pearl River Delta, China
title_full_unstemmed A study on flood hazard and GDP exposure for the Foshan-Zhongshan region in the Pearl River Delta, China
title_sort study on flood hazard and gdp exposure for the foshan-zhongshan region in the pearl river delta, china
publisher Nanyang Technological University
publishDate 2020
url https://hdl.handle.net/10356/143277
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