Application of the Coastal Hazard Wheel for Coastal Multi-Hazard Assessment and Management in the Guang-Dong-Hongkong-Macao Greater Bay Area

The coasts of Guangdong-Hong Kong-Macao Greater Bay Area (GBA) are facing threats and challenges from rising sea levels, frequent extreme events and human intervention. In this study, the Coastal Hazard Wheel (CHW) was used to classify the coasts of GBA, assess its hazard change from 2010 to 2020, i...

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Autores principales:	Qianxin Su, Zhiqiang Li, Gaocong Li, Daoheng Zhu, Pengpeng Hu
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	coastal hazard assessment coastal hazard wheel (CHW) coastal management Guangdong-Hong Kong-Macao greater bay area (GBA) Environmental effects of industries and plants TD194-195 Renewable energy sources TJ807-830 Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/988188dbba7b4520afe160b081e9eaf1
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id	oai:doaj.org-article:988188dbba7b4520afe160b081e9eaf1
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spelling	oai:doaj.org-article:988188dbba7b4520afe160b081e9eaf12021-11-25T19:02:39ZApplication of the Coastal Hazard Wheel for Coastal Multi-Hazard Assessment and Management in the Guang-Dong-Hongkong-Macao Greater Bay Area10.3390/su1322126232071-1050https://doaj.org/article/988188dbba7b4520afe160b081e9eaf12021-11-01T00:00:00Zhttps://www.mdpi.com/2071-1050/13/22/12623https://doaj.org/toc/2071-1050The coasts of Guangdong-Hong Kong-Macao Greater Bay Area (GBA) are facing threats and challenges from rising sea levels, frequent extreme events and human intervention. In this study, the Coastal Hazard Wheel (CHW) was used to classify the coasts of GBA, assess its hazard change from 2010 to 2020, identify hazards hotspots and explore available coastal management options. The results show that the coastal types of GBA in 2010 and 2020 are consistent, with delta/low estuary island and hard rock slope as the main types. GBA is vulnerable to ecosystem disruption, saltwater intrusion, gradual inundation and flooding hazards. Compared with 2010, the high risk proportion of each hazard in 2020 decreased significantly, but the high risk of flooding increased slightly. All kinds of hazards are interdependent and influenced by each other. The Pearl River Estuary, the east bank of Yamen Waterway, the west bank of Huangmao Sea and Dapeng Bay show very high hazard vulnerability, and the flooding risk is the highest. Soft measures such as coastal zoning, tsunami warning systems, wetland restoration and hazard simulation are most widely used in coastal management. CHW is applicable to GBA’s coastal hazard vulnerability assessment, which provides a case study for coastal risk assessment of GBA and has certain reference significance for hazard management and sustainable development for the Bay Area.Qianxin SuZhiqiang LiGaocong LiDaoheng ZhuPengpeng HuMDPI AGarticlecoastal hazard assessmentcoastal hazard wheel (CHW)coastal managementGuangdong-Hong Kong-Macao greater bay area (GBA)Environmental effects of industries and plantsTD194-195Renewable energy sourcesTJ807-830Environmental sciencesGE1-350ENSustainability, Vol 13, Iss 12623, p 12623 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	coastal hazard assessment coastal hazard wheel (CHW) coastal management Guangdong-Hong Kong-Macao greater bay area (GBA) Environmental effects of industries and plants TD194-195 Renewable energy sources TJ807-830 Environmental sciences GE1-350
spellingShingle	coastal hazard assessment coastal hazard wheel (CHW) coastal management Guangdong-Hong Kong-Macao greater bay area (GBA) Environmental effects of industries and plants TD194-195 Renewable energy sources TJ807-830 Environmental sciences GE1-350 Qianxin Su Zhiqiang Li Gaocong Li Daoheng Zhu Pengpeng Hu Application of the Coastal Hazard Wheel for Coastal Multi-Hazard Assessment and Management in the Guang-Dong-Hongkong-Macao Greater Bay Area
description	The coasts of Guangdong-Hong Kong-Macao Greater Bay Area (GBA) are facing threats and challenges from rising sea levels, frequent extreme events and human intervention. In this study, the Coastal Hazard Wheel (CHW) was used to classify the coasts of GBA, assess its hazard change from 2010 to 2020, identify hazards hotspots and explore available coastal management options. The results show that the coastal types of GBA in 2010 and 2020 are consistent, with delta/low estuary island and hard rock slope as the main types. GBA is vulnerable to ecosystem disruption, saltwater intrusion, gradual inundation and flooding hazards. Compared with 2010, the high risk proportion of each hazard in 2020 decreased significantly, but the high risk of flooding increased slightly. All kinds of hazards are interdependent and influenced by each other. The Pearl River Estuary, the east bank of Yamen Waterway, the west bank of Huangmao Sea and Dapeng Bay show very high hazard vulnerability, and the flooding risk is the highest. Soft measures such as coastal zoning, tsunami warning systems, wetland restoration and hazard simulation are most widely used in coastal management. CHW is applicable to GBA’s coastal hazard vulnerability assessment, which provides a case study for coastal risk assessment of GBA and has certain reference significance for hazard management and sustainable development for the Bay Area.
format	article
author	Qianxin Su Zhiqiang Li Gaocong Li Daoheng Zhu Pengpeng Hu
author_facet	Qianxin Su Zhiqiang Li Gaocong Li Daoheng Zhu Pengpeng Hu
author_sort	Qianxin Su
title	Application of the Coastal Hazard Wheel for Coastal Multi-Hazard Assessment and Management in the Guang-Dong-Hongkong-Macao Greater Bay Area
title_short	Application of the Coastal Hazard Wheel for Coastal Multi-Hazard Assessment and Management in the Guang-Dong-Hongkong-Macao Greater Bay Area
title_full	Application of the Coastal Hazard Wheel for Coastal Multi-Hazard Assessment and Management in the Guang-Dong-Hongkong-Macao Greater Bay Area
title_fullStr	Application of the Coastal Hazard Wheel for Coastal Multi-Hazard Assessment and Management in the Guang-Dong-Hongkong-Macao Greater Bay Area
title_full_unstemmed	Application of the Coastal Hazard Wheel for Coastal Multi-Hazard Assessment and Management in the Guang-Dong-Hongkong-Macao Greater Bay Area
title_sort	application of the coastal hazard wheel for coastal multi-hazard assessment and management in the guang-dong-hongkong-macao greater bay area
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/988188dbba7b4520afe160b081e9eaf1
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Application of the Coastal Hazard Wheel for Coastal Multi-Hazard Assessment and Management in the Guang-Dong-Hongkong-Macao Greater Bay Area

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