Morphological Response of Coastal Sand Sheets to Typhoons

Typhoons, as essential influential factors for the formation and evolution of coastal dunes, are one of the most important aspects of surf zone-beach-dune interaction research. Pingtan Island is located on the eastern coast of Fujian Province, China, and preserves a typical type of coastal dunes on China's coastline. These dunes are well-known for their typical shape, volume, and limited human disturbance. Pingtan Island suffers frequent, unavoidable damage from typhoons, and was therefore selected as the study site for this research. Field investigations were conducted on the island before and after typhoon events, by using high-precision RTK GPS technology and surveying methods. The field site was visited 16 times between 2014 and 2017. We analyzed the morphological responses of coastal sand sheets to typhoons, and the related morphological changes. Finally, we summarized the morphological response patterns of coastal sand sheets to typhoons. This study is of great importance for comprehensively understanding the morphological evolution of coastal dunes, which is fundamental for effective coastal planning and management. The following results were obtained: (1) The typhoon imposed significant morphological changes on coastal sand sheets, which can be summarized as a decrease in the height of the beach and frontal coastal sand sheets (maximum erosional depth of 0.92 m), minor variations in the height of coastal sand sheets at middle sites (≤ 0.15 m), and a slight increase in the height of coastal sand sheets at the trailing edge (maximum accumulation thickness of 0.75 m). (2) After the typhoon season, the morphological changes in coastal sand sheets are more consistent, and they mainly manifest as a decrease in volume and a slight increase in the height of the beach and frontal coastal sand sheets (maximum accumulation thickness of 0.78 m). There was a very slight decrease in the height of the middle coastal sand sheets (≤ 0.10 m), and a slight decrease in height at trailing edge of the coastal sand sheets (maximum erosion depth of 0.47 m). (3) Coastline direction is an important factor that affects the response of regional coastal dunes to typhoons. At sites that lack sand resources and experience dominantly offshore wind, typhoons play a prominent role in frontal coastal sand sheet erosion, and can result in a receding coastline (up to 4.0-5.0 m). Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Yang Lin [verfasserIn] Dong Yuxiang [verfasserIn] Huang Dequan [verfasserIn]

Format:	E-Artikel
Sprache:	Chinesisch

Erschienen:	2021

Schlagwörter:	coastal sand sheet typhoon morphological change trend of the coastline pingtan island

Übergeordnetes Werk:	In: Redai dili - Editorial Committee of Tropical Geography, 2021, 41(2021), 5, Seite 968-974
Übergeordnetes Werk:	volume:41 ; year:2021 ; number:5 ; pages:968-974

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.13284/j.cnki.rddl.003376

Katalog-ID:	DOAJ060004312

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520			\|a Typhoons, as essential influential factors for the formation and evolution of coastal dunes, are one of the most important aspects of surf zone-beach-dune interaction research. Pingtan Island is located on the eastern coast of Fujian Province, China, and preserves a typical type of coastal dunes on China's coastline. These dunes are well-known for their typical shape, volume, and limited human disturbance. Pingtan Island suffers frequent, unavoidable damage from typhoons, and was therefore selected as the study site for this research. Field investigations were conducted on the island before and after typhoon events, by using high-precision RTK GPS technology and surveying methods. The field site was visited 16 times between 2014 and 2017. We analyzed the morphological responses of coastal sand sheets to typhoons, and the related morphological changes. Finally, we summarized the morphological response patterns of coastal sand sheets to typhoons. This study is of great importance for comprehensively understanding the morphological evolution of coastal dunes, which is fundamental for effective coastal planning and management. The following results were obtained: (1) The typhoon imposed significant morphological changes on coastal sand sheets, which can be summarized as a decrease in the height of the beach and frontal coastal sand sheets (maximum erosional depth of 0.92 m), minor variations in the height of coastal sand sheets at middle sites (≤ 0.15 m), and a slight increase in the height of coastal sand sheets at the trailing edge (maximum accumulation thickness of 0.75 m). (2) After the typhoon season, the morphological changes in coastal sand sheets are more consistent, and they mainly manifest as a decrease in volume and a slight increase in the height of the beach and frontal coastal sand sheets (maximum accumulation thickness of 0.78 m). There was a very slight decrease in the height of the middle coastal sand sheets (≤ 0.10 m), and a slight decrease in height at trailing edge of the coastal sand sheets (maximum erosion depth of 0.47 m). (3) Coastline direction is an important factor that affects the response of regional coastal dunes to typhoons. At sites that lack sand resources and experience dominantly offshore wind, typhoons play a prominent role in frontal coastal sand sheet erosion, and can result in a receding coastline (up to 4.0-5.0 m).
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allfields	10.13284/j.cnki.rddl.003376 doi (DE-627)DOAJ060004312 (DE-599)DOAJc567a96319f346b686563c6b02dc8b92 DE-627 ger DE-627 rakwb chi G1-922 Yang Lin verfasserin aut Morphological Response of Coastal Sand Sheets to Typhoons 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Typhoons, as essential influential factors for the formation and evolution of coastal dunes, are one of the most important aspects of surf zone-beach-dune interaction research. Pingtan Island is located on the eastern coast of Fujian Province, China, and preserves a typical type of coastal dunes on China's coastline. These dunes are well-known for their typical shape, volume, and limited human disturbance. Pingtan Island suffers frequent, unavoidable damage from typhoons, and was therefore selected as the study site for this research. Field investigations were conducted on the island before and after typhoon events, by using high-precision RTK GPS technology and surveying methods. The field site was visited 16 times between 2014 and 2017. We analyzed the morphological responses of coastal sand sheets to typhoons, and the related morphological changes. Finally, we summarized the morphological response patterns of coastal sand sheets to typhoons. This study is of great importance for comprehensively understanding the morphological evolution of coastal dunes, which is fundamental for effective coastal planning and management. The following results were obtained: (1) The typhoon imposed significant morphological changes on coastal sand sheets, which can be summarized as a decrease in the height of the beach and frontal coastal sand sheets (maximum erosional depth of 0.92 m), minor variations in the height of coastal sand sheets at middle sites (≤ 0.15 m), and a slight increase in the height of coastal sand sheets at the trailing edge (maximum accumulation thickness of 0.75 m). (2) After the typhoon season, the morphological changes in coastal sand sheets are more consistent, and they mainly manifest as a decrease in volume and a slight increase in the height of the beach and frontal coastal sand sheets (maximum accumulation thickness of 0.78 m). There was a very slight decrease in the height of the middle coastal sand sheets (≤ 0.10 m), and a slight decrease in height at trailing edge of the coastal sand sheets (maximum erosion depth of 0.47 m). (3) Coastline direction is an important factor that affects the response of regional coastal dunes to typhoons. At sites that lack sand resources and experience dominantly offshore wind, typhoons play a prominent role in frontal coastal sand sheet erosion, and can result in a receding coastline (up to 4.0-5.0 m). coastal sand sheet typhoon morphological change trend of the coastline pingtan island Geography (General) Dong Yuxiang verfasserin aut Huang Dequan verfasserin aut In Redai dili Editorial Committee of Tropical Geography, 2021 41(2021), 5, Seite 968-974 (DE-627)574353631 (DE-600)2442398-1 10015221 nnns volume:41 year:2021 number:5 pages:968-974 https://doi.org/10.13284/j.cnki.rddl.003376 kostenfrei https://doaj.org/article/c567a96319f346b686563c6b02dc8b92 kostenfrei http://www.rddl.com.cn/CN/10.13284/j.cnki.rddl.003376 kostenfrei https://doaj.org/toc/1001-5221 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_39 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_2817 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 41 2021 5 968-974
spelling	10.13284/j.cnki.rddl.003376 doi (DE-627)DOAJ060004312 (DE-599)DOAJc567a96319f346b686563c6b02dc8b92 DE-627 ger DE-627 rakwb chi G1-922 Yang Lin verfasserin aut Morphological Response of Coastal Sand Sheets to Typhoons 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Typhoons, as essential influential factors for the formation and evolution of coastal dunes, are one of the most important aspects of surf zone-beach-dune interaction research. Pingtan Island is located on the eastern coast of Fujian Province, China, and preserves a typical type of coastal dunes on China's coastline. These dunes are well-known for their typical shape, volume, and limited human disturbance. Pingtan Island suffers frequent, unavoidable damage from typhoons, and was therefore selected as the study site for this research. Field investigations were conducted on the island before and after typhoon events, by using high-precision RTK GPS technology and surveying methods. The field site was visited 16 times between 2014 and 2017. We analyzed the morphological responses of coastal sand sheets to typhoons, and the related morphological changes. Finally, we summarized the morphological response patterns of coastal sand sheets to typhoons. This study is of great importance for comprehensively understanding the morphological evolution of coastal dunes, which is fundamental for effective coastal planning and management. The following results were obtained: (1) The typhoon imposed significant morphological changes on coastal sand sheets, which can be summarized as a decrease in the height of the beach and frontal coastal sand sheets (maximum erosional depth of 0.92 m), minor variations in the height of coastal sand sheets at middle sites (≤ 0.15 m), and a slight increase in the height of coastal sand sheets at the trailing edge (maximum accumulation thickness of 0.75 m). (2) After the typhoon season, the morphological changes in coastal sand sheets are more consistent, and they mainly manifest as a decrease in volume and a slight increase in the height of the beach and frontal coastal sand sheets (maximum accumulation thickness of 0.78 m). There was a very slight decrease in the height of the middle coastal sand sheets (≤ 0.10 m), and a slight decrease in height at trailing edge of the coastal sand sheets (maximum erosion depth of 0.47 m). (3) Coastline direction is an important factor that affects the response of regional coastal dunes to typhoons. At sites that lack sand resources and experience dominantly offshore wind, typhoons play a prominent role in frontal coastal sand sheet erosion, and can result in a receding coastline (up to 4.0-5.0 m). coastal sand sheet typhoon morphological change trend of the coastline pingtan island Geography (General) Dong Yuxiang verfasserin aut Huang Dequan verfasserin aut In Redai dili Editorial Committee of Tropical Geography, 2021 41(2021), 5, Seite 968-974 (DE-627)574353631 (DE-600)2442398-1 10015221 nnns volume:41 year:2021 number:5 pages:968-974 https://doi.org/10.13284/j.cnki.rddl.003376 kostenfrei https://doaj.org/article/c567a96319f346b686563c6b02dc8b92 kostenfrei http://www.rddl.com.cn/CN/10.13284/j.cnki.rddl.003376 kostenfrei https://doaj.org/toc/1001-5221 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_39 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_2817 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 41 2021 5 968-974
allfields_unstemmed	10.13284/j.cnki.rddl.003376 doi (DE-627)DOAJ060004312 (DE-599)DOAJc567a96319f346b686563c6b02dc8b92 DE-627 ger DE-627 rakwb chi G1-922 Yang Lin verfasserin aut Morphological Response of Coastal Sand Sheets to Typhoons 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Typhoons, as essential influential factors for the formation and evolution of coastal dunes, are one of the most important aspects of surf zone-beach-dune interaction research. Pingtan Island is located on the eastern coast of Fujian Province, China, and preserves a typical type of coastal dunes on China's coastline. These dunes are well-known for their typical shape, volume, and limited human disturbance. Pingtan Island suffers frequent, unavoidable damage from typhoons, and was therefore selected as the study site for this research. Field investigations were conducted on the island before and after typhoon events, by using high-precision RTK GPS technology and surveying methods. The field site was visited 16 times between 2014 and 2017. We analyzed the morphological responses of coastal sand sheets to typhoons, and the related morphological changes. Finally, we summarized the morphological response patterns of coastal sand sheets to typhoons. This study is of great importance for comprehensively understanding the morphological evolution of coastal dunes, which is fundamental for effective coastal planning and management. The following results were obtained: (1) The typhoon imposed significant morphological changes on coastal sand sheets, which can be summarized as a decrease in the height of the beach and frontal coastal sand sheets (maximum erosional depth of 0.92 m), minor variations in the height of coastal sand sheets at middle sites (≤ 0.15 m), and a slight increase in the height of coastal sand sheets at the trailing edge (maximum accumulation thickness of 0.75 m). (2) After the typhoon season, the morphological changes in coastal sand sheets are more consistent, and they mainly manifest as a decrease in volume and a slight increase in the height of the beach and frontal coastal sand sheets (maximum accumulation thickness of 0.78 m). There was a very slight decrease in the height of the middle coastal sand sheets (≤ 0.10 m), and a slight decrease in height at trailing edge of the coastal sand sheets (maximum erosion depth of 0.47 m). (3) Coastline direction is an important factor that affects the response of regional coastal dunes to typhoons. At sites that lack sand resources and experience dominantly offshore wind, typhoons play a prominent role in frontal coastal sand sheet erosion, and can result in a receding coastline (up to 4.0-5.0 m). coastal sand sheet typhoon morphological change trend of the coastline pingtan island Geography (General) Dong Yuxiang verfasserin aut Huang Dequan verfasserin aut In Redai dili Editorial Committee of Tropical Geography, 2021 41(2021), 5, Seite 968-974 (DE-627)574353631 (DE-600)2442398-1 10015221 nnns volume:41 year:2021 number:5 pages:968-974 https://doi.org/10.13284/j.cnki.rddl.003376 kostenfrei https://doaj.org/article/c567a96319f346b686563c6b02dc8b92 kostenfrei http://www.rddl.com.cn/CN/10.13284/j.cnki.rddl.003376 kostenfrei https://doaj.org/toc/1001-5221 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_39 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_2817 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 41 2021 5 968-974
allfieldsGer	10.13284/j.cnki.rddl.003376 doi (DE-627)DOAJ060004312 (DE-599)DOAJc567a96319f346b686563c6b02dc8b92 DE-627 ger DE-627 rakwb chi G1-922 Yang Lin verfasserin aut Morphological Response of Coastal Sand Sheets to Typhoons 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Typhoons, as essential influential factors for the formation and evolution of coastal dunes, are one of the most important aspects of surf zone-beach-dune interaction research. Pingtan Island is located on the eastern coast of Fujian Province, China, and preserves a typical type of coastal dunes on China's coastline. These dunes are well-known for their typical shape, volume, and limited human disturbance. Pingtan Island suffers frequent, unavoidable damage from typhoons, and was therefore selected as the study site for this research. Field investigations were conducted on the island before and after typhoon events, by using high-precision RTK GPS technology and surveying methods. The field site was visited 16 times between 2014 and 2017. We analyzed the morphological responses of coastal sand sheets to typhoons, and the related morphological changes. Finally, we summarized the morphological response patterns of coastal sand sheets to typhoons. This study is of great importance for comprehensively understanding the morphological evolution of coastal dunes, which is fundamental for effective coastal planning and management. The following results were obtained: (1) The typhoon imposed significant morphological changes on coastal sand sheets, which can be summarized as a decrease in the height of the beach and frontal coastal sand sheets (maximum erosional depth of 0.92 m), minor variations in the height of coastal sand sheets at middle sites (≤ 0.15 m), and a slight increase in the height of coastal sand sheets at the trailing edge (maximum accumulation thickness of 0.75 m). (2) After the typhoon season, the morphological changes in coastal sand sheets are more consistent, and they mainly manifest as a decrease in volume and a slight increase in the height of the beach and frontal coastal sand sheets (maximum accumulation thickness of 0.78 m). There was a very slight decrease in the height of the middle coastal sand sheets (≤ 0.10 m), and a slight decrease in height at trailing edge of the coastal sand sheets (maximum erosion depth of 0.47 m). (3) Coastline direction is an important factor that affects the response of regional coastal dunes to typhoons. At sites that lack sand resources and experience dominantly offshore wind, typhoons play a prominent role in frontal coastal sand sheet erosion, and can result in a receding coastline (up to 4.0-5.0 m). coastal sand sheet typhoon morphological change trend of the coastline pingtan island Geography (General) Dong Yuxiang verfasserin aut Huang Dequan verfasserin aut In Redai dili Editorial Committee of Tropical Geography, 2021 41(2021), 5, Seite 968-974 (DE-627)574353631 (DE-600)2442398-1 10015221 nnns volume:41 year:2021 number:5 pages:968-974 https://doi.org/10.13284/j.cnki.rddl.003376 kostenfrei https://doaj.org/article/c567a96319f346b686563c6b02dc8b92 kostenfrei http://www.rddl.com.cn/CN/10.13284/j.cnki.rddl.003376 kostenfrei https://doaj.org/toc/1001-5221 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_39 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_2817 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 41 2021 5 968-974
allfieldsSound	10.13284/j.cnki.rddl.003376 doi (DE-627)DOAJ060004312 (DE-599)DOAJc567a96319f346b686563c6b02dc8b92 DE-627 ger DE-627 rakwb chi G1-922 Yang Lin verfasserin aut Morphological Response of Coastal Sand Sheets to Typhoons 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Typhoons, as essential influential factors for the formation and evolution of coastal dunes, are one of the most important aspects of surf zone-beach-dune interaction research. Pingtan Island is located on the eastern coast of Fujian Province, China, and preserves a typical type of coastal dunes on China's coastline. These dunes are well-known for their typical shape, volume, and limited human disturbance. Pingtan Island suffers frequent, unavoidable damage from typhoons, and was therefore selected as the study site for this research. Field investigations were conducted on the island before and after typhoon events, by using high-precision RTK GPS technology and surveying methods. The field site was visited 16 times between 2014 and 2017. We analyzed the morphological responses of coastal sand sheets to typhoons, and the related morphological changes. Finally, we summarized the morphological response patterns of coastal sand sheets to typhoons. This study is of great importance for comprehensively understanding the morphological evolution of coastal dunes, which is fundamental for effective coastal planning and management. The following results were obtained: (1) The typhoon imposed significant morphological changes on coastal sand sheets, which can be summarized as a decrease in the height of the beach and frontal coastal sand sheets (maximum erosional depth of 0.92 m), minor variations in the height of coastal sand sheets at middle sites (≤ 0.15 m), and a slight increase in the height of coastal sand sheets at the trailing edge (maximum accumulation thickness of 0.75 m). (2) After the typhoon season, the morphological changes in coastal sand sheets are more consistent, and they mainly manifest as a decrease in volume and a slight increase in the height of the beach and frontal coastal sand sheets (maximum accumulation thickness of 0.78 m). There was a very slight decrease in the height of the middle coastal sand sheets (≤ 0.10 m), and a slight decrease in height at trailing edge of the coastal sand sheets (maximum erosion depth of 0.47 m). (3) Coastline direction is an important factor that affects the response of regional coastal dunes to typhoons. At sites that lack sand resources and experience dominantly offshore wind, typhoons play a prominent role in frontal coastal sand sheet erosion, and can result in a receding coastline (up to 4.0-5.0 m). coastal sand sheet typhoon morphological change trend of the coastline pingtan island Geography (General) Dong Yuxiang verfasserin aut Huang Dequan verfasserin aut In Redai dili Editorial Committee of Tropical Geography, 2021 41(2021), 5, Seite 968-974 (DE-627)574353631 (DE-600)2442398-1 10015221 nnns volume:41 year:2021 number:5 pages:968-974 https://doi.org/10.13284/j.cnki.rddl.003376 kostenfrei https://doaj.org/article/c567a96319f346b686563c6b02dc8b92 kostenfrei http://www.rddl.com.cn/CN/10.13284/j.cnki.rddl.003376 kostenfrei https://doaj.org/toc/1001-5221 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_39 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_2817 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 41 2021 5 968-974
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callnumber-first	G - Geography, Anthropology, Recreation
author	Yang Lin
spellingShingle	Yang Lin misc G1-922 misc coastal sand sheet misc typhoon misc morphological change misc trend of the coastline misc pingtan island misc Geography (General) Morphological Response of Coastal Sand Sheets to Typhoons
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topic_title	G1-922 Morphological Response of Coastal Sand Sheets to Typhoons coastal sand sheet typhoon morphological change trend of the coastline pingtan island
topic	misc G1-922 misc coastal sand sheet misc typhoon misc morphological change misc trend of the coastline misc pingtan island misc Geography (General)
topic_unstemmed	misc G1-922 misc coastal sand sheet misc typhoon misc morphological change misc trend of the coastline misc pingtan island misc Geography (General)
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title	Morphological Response of Coastal Sand Sheets to Typhoons
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title_full	Morphological Response of Coastal Sand Sheets to Typhoons
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title_sort	morphological response of coastal sand sheets to typhoons
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title_auth	Morphological Response of Coastal Sand Sheets to Typhoons
abstract	Typhoons, as essential influential factors for the formation and evolution of coastal dunes, are one of the most important aspects of surf zone-beach-dune interaction research. Pingtan Island is located on the eastern coast of Fujian Province, China, and preserves a typical type of coastal dunes on China's coastline. These dunes are well-known for their typical shape, volume, and limited human disturbance. Pingtan Island suffers frequent, unavoidable damage from typhoons, and was therefore selected as the study site for this research. Field investigations were conducted on the island before and after typhoon events, by using high-precision RTK GPS technology and surveying methods. The field site was visited 16 times between 2014 and 2017. We analyzed the morphological responses of coastal sand sheets to typhoons, and the related morphological changes. Finally, we summarized the morphological response patterns of coastal sand sheets to typhoons. This study is of great importance for comprehensively understanding the morphological evolution of coastal dunes, which is fundamental for effective coastal planning and management. The following results were obtained: (1) The typhoon imposed significant morphological changes on coastal sand sheets, which can be summarized as a decrease in the height of the beach and frontal coastal sand sheets (maximum erosional depth of 0.92 m), minor variations in the height of coastal sand sheets at middle sites (≤ 0.15 m), and a slight increase in the height of coastal sand sheets at the trailing edge (maximum accumulation thickness of 0.75 m). (2) After the typhoon season, the morphological changes in coastal sand sheets are more consistent, and they mainly manifest as a decrease in volume and a slight increase in the height of the beach and frontal coastal sand sheets (maximum accumulation thickness of 0.78 m). There was a very slight decrease in the height of the middle coastal sand sheets (≤ 0.10 m), and a slight decrease in height at trailing edge of the coastal sand sheets (maximum erosion depth of 0.47 m). (3) Coastline direction is an important factor that affects the response of regional coastal dunes to typhoons. At sites that lack sand resources and experience dominantly offshore wind, typhoons play a prominent role in frontal coastal sand sheet erosion, and can result in a receding coastline (up to 4.0-5.0 m).
abstractGer	Typhoons, as essential influential factors for the formation and evolution of coastal dunes, are one of the most important aspects of surf zone-beach-dune interaction research. Pingtan Island is located on the eastern coast of Fujian Province, China, and preserves a typical type of coastal dunes on China's coastline. These dunes are well-known for their typical shape, volume, and limited human disturbance. Pingtan Island suffers frequent, unavoidable damage from typhoons, and was therefore selected as the study site for this research. Field investigations were conducted on the island before and after typhoon events, by using high-precision RTK GPS technology and surveying methods. The field site was visited 16 times between 2014 and 2017. We analyzed the morphological responses of coastal sand sheets to typhoons, and the related morphological changes. Finally, we summarized the morphological response patterns of coastal sand sheets to typhoons. This study is of great importance for comprehensively understanding the morphological evolution of coastal dunes, which is fundamental for effective coastal planning and management. The following results were obtained: (1) The typhoon imposed significant morphological changes on coastal sand sheets, which can be summarized as a decrease in the height of the beach and frontal coastal sand sheets (maximum erosional depth of 0.92 m), minor variations in the height of coastal sand sheets at middle sites (≤ 0.15 m), and a slight increase in the height of coastal sand sheets at the trailing edge (maximum accumulation thickness of 0.75 m). (2) After the typhoon season, the morphological changes in coastal sand sheets are more consistent, and they mainly manifest as a decrease in volume and a slight increase in the height of the beach and frontal coastal sand sheets (maximum accumulation thickness of 0.78 m). There was a very slight decrease in the height of the middle coastal sand sheets (≤ 0.10 m), and a slight decrease in height at trailing edge of the coastal sand sheets (maximum erosion depth of 0.47 m). (3) Coastline direction is an important factor that affects the response of regional coastal dunes to typhoons. At sites that lack sand resources and experience dominantly offshore wind, typhoons play a prominent role in frontal coastal sand sheet erosion, and can result in a receding coastline (up to 4.0-5.0 m).
abstract_unstemmed	Typhoons, as essential influential factors for the formation and evolution of coastal dunes, are one of the most important aspects of surf zone-beach-dune interaction research. Pingtan Island is located on the eastern coast of Fujian Province, China, and preserves a typical type of coastal dunes on China's coastline. These dunes are well-known for their typical shape, volume, and limited human disturbance. Pingtan Island suffers frequent, unavoidable damage from typhoons, and was therefore selected as the study site for this research. Field investigations were conducted on the island before and after typhoon events, by using high-precision RTK GPS technology and surveying methods. The field site was visited 16 times between 2014 and 2017. We analyzed the morphological responses of coastal sand sheets to typhoons, and the related morphological changes. Finally, we summarized the morphological response patterns of coastal sand sheets to typhoons. This study is of great importance for comprehensively understanding the morphological evolution of coastal dunes, which is fundamental for effective coastal planning and management. The following results were obtained: (1) The typhoon imposed significant morphological changes on coastal sand sheets, which can be summarized as a decrease in the height of the beach and frontal coastal sand sheets (maximum erosional depth of 0.92 m), minor variations in the height of coastal sand sheets at middle sites (≤ 0.15 m), and a slight increase in the height of coastal sand sheets at the trailing edge (maximum accumulation thickness of 0.75 m). (2) After the typhoon season, the morphological changes in coastal sand sheets are more consistent, and they mainly manifest as a decrease in volume and a slight increase in the height of the beach and frontal coastal sand sheets (maximum accumulation thickness of 0.78 m). There was a very slight decrease in the height of the middle coastal sand sheets (≤ 0.10 m), and a slight decrease in height at trailing edge of the coastal sand sheets (maximum erosion depth of 0.47 m). (3) Coastline direction is an important factor that affects the response of regional coastal dunes to typhoons. At sites that lack sand resources and experience dominantly offshore wind, typhoons play a prominent role in frontal coastal sand sheet erosion, and can result in a receding coastline (up to 4.0-5.0 m).
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title_short	Morphological Response of Coastal Sand Sheets to Typhoons
url	https://doi.org/10.13284/j.cnki.rddl.003376 https://doaj.org/article/c567a96319f346b686563c6b02dc8b92 http://www.rddl.com.cn/CN/10.13284/j.cnki.rddl.003376 https://doaj.org/toc/1001-5221
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Morphological Response of Coastal Sand Sheets to Typhoons

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