Effect of Tropical Cyclones on Short-Term Evolution of Carbonate Sandy Beaches on Reunion Island, Indian Ocean
Carbonate sandy beaches in Reunion Island show various forms of evidence of erosion. Extreme waves associated with tropical cyclones (TCs) play a major role in beach dynamics. The present study analyzes and quantifies back-reef beach response and recovery from forcing generated by TCs Dumile, Fellen...
Ausführliche Beschreibung
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| Autor*in: |
Mahabot [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2016 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: Journal of coastal research - Fort Lauderdale, Fla. : CERF, 1985, 33(2016), 4, Seite 839 |
|---|---|
| Übergeordnetes Werk: |
volume:33 ; year:2016 ; number:4 ; pages:839 |
| Links: |
|---|
| DOI / URN: |
10.2112/JCOASTRES-D-16-00031.1 |
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OLC1996173839 |
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| 520 | |a Carbonate sandy beaches in Reunion Island show various forms of evidence of erosion. Extreme waves associated with tropical cyclones (TCs) play a major role in beach dynamics. The present study analyzes and quantifies back-reef beach response and recovery from forcing generated by TCs Dumile, Felleng, and Bejisa, which occurred in 2013 and 2014. The study focuses on carbonate beaches of Reunion Island from Cap Champagne to the Passe de Trois-Bassins. Morphological and volumetric changes on beaches were analyzed by comparing 19 beach profiles. The results show that TCs are able to cause significant morphosedimentary change on the back-reef beaches of Reunion Island. These changes affect beach topography and involve longshore and cross-shore sediment transport. An alongshore variation in beach response is observed, which varies according to tropical storm intensity and coastal morphology. The intensity of impact seems to be related to reef width. The most severe erosion occurred at Boucan Canot, where reef is absent with a loss of -24 ± 2 m3 after TC Dumile, -38.7 ± 1.2 m3 after Felleng, and -42.5 ± 1.6 m3 after Bejisa. Elsewhere, the volumetric changes is less than 5 m3 under TC Dumile and vary between 2 and 11 m3 under TC Felleng and between 2 and 23 m3 under TC Bejisa. No significant impact occurred at La Saline where the reef flat is large and provides good protection for the beach; however, relative coastline orientation and prestorm beach-profile morphology also play an essential role in storm impact. Wave height and water level are also determinant factors of storm erosion potential. After storms, the beaches show a relative capacity for recovering because of calm conditions; however, different behaviours are observed along the same beach compartment. This suggests local influence of coastal structure and/or reef geomorphology in sediment transport processes. | ||
| 650 | 4 | |a Coastlines | |
| 650 | 4 | |a Cyclones | |
| 650 | 4 | |a Champagne | |
| 650 | 4 | |a Reefs | |
| 650 | 4 | |a Climate change | |
| 650 | 4 | |a Soil erosion | |
| 650 | 4 | |a Tropical cyclones | |
| 650 | 4 | |a Storms | |
| 650 | 4 | |a Water levels | |
| 650 | 4 | |a Topography (geology) | |
| 650 | 4 | |a Geomorphology | |
| 650 | 4 | |a Recovering | |
| 650 | 4 | |a Coastal morphology | |
| 650 | 4 | |a Waves | |
| 650 | 4 | |a Sediment transport | |
| 650 | 4 | |a Transport processes | |
| 650 | 4 | |a Topography | |
| 650 | 4 | |a Coasts | |
| 650 | 4 | |a Beaches | |
| 650 | 4 | |a Orientation | |
| 650 | 4 | |a Coastal structures | |
| 650 | 4 | |a Banks (topography) | |
| 650 | 4 | |a Wave power | |
| 650 | 4 | |a Carbonates | |
| 650 | 4 | |a Dynamic tests | |
| 650 | 4 | |a Protection | |
| 650 | 4 | |a Dynamics | |
| 650 | 4 | |a Sediments | |
| 650 | 4 | |a Hurricanes | |
| 650 | 4 | |a Erosion | |
| 650 | 4 | |a Saline | |
| 650 | 4 | |a Transport | |
| 650 | 4 | |a Coral reefs | |
| 650 | 4 | |a Wave height | |
| 650 | 4 | |a Morphology | |
| 650 | 4 | |a Slopes (topography) | |
| 650 | 4 | |a Beach profiles | |
| 650 | 4 | |a Loads (forces) | |
| 650 | 4 | |a Capacity | |
| 650 | 4 | |a Economic conditions | |
| 650 | 4 | |a Beach erosion | |
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10.2112/JCOASTRES-D-16-00031.1 doi PQ20170901 (DE-627)OLC1996173839 (DE-599)GBVOLC1996173839 (PRQ)c1409-3cc9a46bf94ed51101045a59c6d7aa3dc7141f7570a2ea85dd8f7b477db65bc90 (KEY)0141275220160000033000400839effectoftropicalcyclonesonshorttermevolutionofcarb DE-627 ger DE-627 rakwb eng 550 530 DNB BIODIV fid 38.48 bkl Mahabot verfasserin aut Effect of Tropical Cyclones on Short-Term Evolution of Carbonate Sandy Beaches on Reunion Island, Indian Ocean 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Carbonate sandy beaches in Reunion Island show various forms of evidence of erosion. Extreme waves associated with tropical cyclones (TCs) play a major role in beach dynamics. The present study analyzes and quantifies back-reef beach response and recovery from forcing generated by TCs Dumile, Felleng, and Bejisa, which occurred in 2013 and 2014. The study focuses on carbonate beaches of Reunion Island from Cap Champagne to the Passe de Trois-Bassins. Morphological and volumetric changes on beaches were analyzed by comparing 19 beach profiles. The results show that TCs are able to cause significant morphosedimentary change on the back-reef beaches of Reunion Island. These changes affect beach topography and involve longshore and cross-shore sediment transport. An alongshore variation in beach response is observed, which varies according to tropical storm intensity and coastal morphology. The intensity of impact seems to be related to reef width. The most severe erosion occurred at Boucan Canot, where reef is absent with a loss of -24 ± 2 m3 after TC Dumile, -38.7 ± 1.2 m3 after Felleng, and -42.5 ± 1.6 m3 after Bejisa. Elsewhere, the volumetric changes is less than 5 m3 under TC Dumile and vary between 2 and 11 m3 under TC Felleng and between 2 and 23 m3 under TC Bejisa. No significant impact occurred at La Saline where the reef flat is large and provides good protection for the beach; however, relative coastline orientation and prestorm beach-profile morphology also play an essential role in storm impact. Wave height and water level are also determinant factors of storm erosion potential. After storms, the beaches show a relative capacity for recovering because of calm conditions; however, different behaviours are observed along the same beach compartment. This suggests local influence of coastal structure and/or reef geomorphology in sediment transport processes. Coastlines Cyclones Champagne Reefs Climate change Soil erosion Tropical cyclones Storms Water levels Topography (geology) Geomorphology Recovering Coastal morphology Waves Sediment transport Transport processes Topography Coasts Beaches Orientation Coastal structures Banks (topography) Wave power Carbonates Dynamic tests Protection Dynamics Sediments Hurricanes Erosion Saline Transport Coral reefs Wave height Morphology Slopes (topography) Beach profiles Loads (forces) Capacity Economic conditions Beach erosion Enthalten in Journal of coastal research Fort Lauderdale, Fla. : CERF, 1985 33(2016), 4, Seite 839 (DE-627)129194530 (DE-600)53639-8 (DE-576)9129194539 0749-0208 nnns volume:33 year:2016 number:4 pages:839 http://dx.doi.org/10.2112/JCOASTRES-D-16-00031.1 Volltext https://search.proquest.com/docview/1922447109 GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-BIODIV SSG-OLC-PHY SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_22 GBV_ILN_23 GBV_ILN_70 GBV_ILN_183 38.48 AVZ AR 33 2016 4 839 |
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10.2112/JCOASTRES-D-16-00031.1 doi PQ20170901 (DE-627)OLC1996173839 (DE-599)GBVOLC1996173839 (PRQ)c1409-3cc9a46bf94ed51101045a59c6d7aa3dc7141f7570a2ea85dd8f7b477db65bc90 (KEY)0141275220160000033000400839effectoftropicalcyclonesonshorttermevolutionofcarb DE-627 ger DE-627 rakwb eng 550 530 DNB BIODIV fid 38.48 bkl Mahabot verfasserin aut Effect of Tropical Cyclones on Short-Term Evolution of Carbonate Sandy Beaches on Reunion Island, Indian Ocean 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Carbonate sandy beaches in Reunion Island show various forms of evidence of erosion. Extreme waves associated with tropical cyclones (TCs) play a major role in beach dynamics. The present study analyzes and quantifies back-reef beach response and recovery from forcing generated by TCs Dumile, Felleng, and Bejisa, which occurred in 2013 and 2014. The study focuses on carbonate beaches of Reunion Island from Cap Champagne to the Passe de Trois-Bassins. Morphological and volumetric changes on beaches were analyzed by comparing 19 beach profiles. The results show that TCs are able to cause significant morphosedimentary change on the back-reef beaches of Reunion Island. These changes affect beach topography and involve longshore and cross-shore sediment transport. An alongshore variation in beach response is observed, which varies according to tropical storm intensity and coastal morphology. The intensity of impact seems to be related to reef width. The most severe erosion occurred at Boucan Canot, where reef is absent with a loss of -24 ± 2 m3 after TC Dumile, -38.7 ± 1.2 m3 after Felleng, and -42.5 ± 1.6 m3 after Bejisa. Elsewhere, the volumetric changes is less than 5 m3 under TC Dumile and vary between 2 and 11 m3 under TC Felleng and between 2 and 23 m3 under TC Bejisa. No significant impact occurred at La Saline where the reef flat is large and provides good protection for the beach; however, relative coastline orientation and prestorm beach-profile morphology also play an essential role in storm impact. Wave height and water level are also determinant factors of storm erosion potential. After storms, the beaches show a relative capacity for recovering because of calm conditions; however, different behaviours are observed along the same beach compartment. This suggests local influence of coastal structure and/or reef geomorphology in sediment transport processes. Coastlines Cyclones Champagne Reefs Climate change Soil erosion Tropical cyclones Storms Water levels Topography (geology) Geomorphology Recovering Coastal morphology Waves Sediment transport Transport processes Topography Coasts Beaches Orientation Coastal structures Banks (topography) Wave power Carbonates Dynamic tests Protection Dynamics Sediments Hurricanes Erosion Saline Transport Coral reefs Wave height Morphology Slopes (topography) Beach profiles Loads (forces) Capacity Economic conditions Beach erosion Enthalten in Journal of coastal research Fort Lauderdale, Fla. : CERF, 1985 33(2016), 4, Seite 839 (DE-627)129194530 (DE-600)53639-8 (DE-576)9129194539 0749-0208 nnns volume:33 year:2016 number:4 pages:839 http://dx.doi.org/10.2112/JCOASTRES-D-16-00031.1 Volltext https://search.proquest.com/docview/1922447109 GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-BIODIV SSG-OLC-PHY SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_22 GBV_ILN_23 GBV_ILN_70 GBV_ILN_183 38.48 AVZ AR 33 2016 4 839 |
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10.2112/JCOASTRES-D-16-00031.1 doi PQ20170901 (DE-627)OLC1996173839 (DE-599)GBVOLC1996173839 (PRQ)c1409-3cc9a46bf94ed51101045a59c6d7aa3dc7141f7570a2ea85dd8f7b477db65bc90 (KEY)0141275220160000033000400839effectoftropicalcyclonesonshorttermevolutionofcarb DE-627 ger DE-627 rakwb eng 550 530 DNB BIODIV fid 38.48 bkl Mahabot verfasserin aut Effect of Tropical Cyclones on Short-Term Evolution of Carbonate Sandy Beaches on Reunion Island, Indian Ocean 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Carbonate sandy beaches in Reunion Island show various forms of evidence of erosion. Extreme waves associated with tropical cyclones (TCs) play a major role in beach dynamics. The present study analyzes and quantifies back-reef beach response and recovery from forcing generated by TCs Dumile, Felleng, and Bejisa, which occurred in 2013 and 2014. The study focuses on carbonate beaches of Reunion Island from Cap Champagne to the Passe de Trois-Bassins. Morphological and volumetric changes on beaches were analyzed by comparing 19 beach profiles. The results show that TCs are able to cause significant morphosedimentary change on the back-reef beaches of Reunion Island. These changes affect beach topography and involve longshore and cross-shore sediment transport. An alongshore variation in beach response is observed, which varies according to tropical storm intensity and coastal morphology. The intensity of impact seems to be related to reef width. The most severe erosion occurred at Boucan Canot, where reef is absent with a loss of -24 ± 2 m3 after TC Dumile, -38.7 ± 1.2 m3 after Felleng, and -42.5 ± 1.6 m3 after Bejisa. Elsewhere, the volumetric changes is less than 5 m3 under TC Dumile and vary between 2 and 11 m3 under TC Felleng and between 2 and 23 m3 under TC Bejisa. No significant impact occurred at La Saline where the reef flat is large and provides good protection for the beach; however, relative coastline orientation and prestorm beach-profile morphology also play an essential role in storm impact. Wave height and water level are also determinant factors of storm erosion potential. After storms, the beaches show a relative capacity for recovering because of calm conditions; however, different behaviours are observed along the same beach compartment. This suggests local influence of coastal structure and/or reef geomorphology in sediment transport processes. Coastlines Cyclones Champagne Reefs Climate change Soil erosion Tropical cyclones Storms Water levels Topography (geology) Geomorphology Recovering Coastal morphology Waves Sediment transport Transport processes Topography Coasts Beaches Orientation Coastal structures Banks (topography) Wave power Carbonates Dynamic tests Protection Dynamics Sediments Hurricanes Erosion Saline Transport Coral reefs Wave height Morphology Slopes (topography) Beach profiles Loads (forces) Capacity Economic conditions Beach erosion Enthalten in Journal of coastal research Fort Lauderdale, Fla. : CERF, 1985 33(2016), 4, Seite 839 (DE-627)129194530 (DE-600)53639-8 (DE-576)9129194539 0749-0208 nnns volume:33 year:2016 number:4 pages:839 http://dx.doi.org/10.2112/JCOASTRES-D-16-00031.1 Volltext https://search.proquest.com/docview/1922447109 GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-BIODIV SSG-OLC-PHY SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_22 GBV_ILN_23 GBV_ILN_70 GBV_ILN_183 38.48 AVZ AR 33 2016 4 839 |
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10.2112/JCOASTRES-D-16-00031.1 doi PQ20170901 (DE-627)OLC1996173839 (DE-599)GBVOLC1996173839 (PRQ)c1409-3cc9a46bf94ed51101045a59c6d7aa3dc7141f7570a2ea85dd8f7b477db65bc90 (KEY)0141275220160000033000400839effectoftropicalcyclonesonshorttermevolutionofcarb DE-627 ger DE-627 rakwb eng 550 530 DNB BIODIV fid 38.48 bkl Mahabot verfasserin aut Effect of Tropical Cyclones on Short-Term Evolution of Carbonate Sandy Beaches on Reunion Island, Indian Ocean 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Carbonate sandy beaches in Reunion Island show various forms of evidence of erosion. Extreme waves associated with tropical cyclones (TCs) play a major role in beach dynamics. The present study analyzes and quantifies back-reef beach response and recovery from forcing generated by TCs Dumile, Felleng, and Bejisa, which occurred in 2013 and 2014. The study focuses on carbonate beaches of Reunion Island from Cap Champagne to the Passe de Trois-Bassins. Morphological and volumetric changes on beaches were analyzed by comparing 19 beach profiles. The results show that TCs are able to cause significant morphosedimentary change on the back-reef beaches of Reunion Island. These changes affect beach topography and involve longshore and cross-shore sediment transport. An alongshore variation in beach response is observed, which varies according to tropical storm intensity and coastal morphology. The intensity of impact seems to be related to reef width. The most severe erosion occurred at Boucan Canot, where reef is absent with a loss of -24 ± 2 m3 after TC Dumile, -38.7 ± 1.2 m3 after Felleng, and -42.5 ± 1.6 m3 after Bejisa. Elsewhere, the volumetric changes is less than 5 m3 under TC Dumile and vary between 2 and 11 m3 under TC Felleng and between 2 and 23 m3 under TC Bejisa. No significant impact occurred at La Saline where the reef flat is large and provides good protection for the beach; however, relative coastline orientation and prestorm beach-profile morphology also play an essential role in storm impact. Wave height and water level are also determinant factors of storm erosion potential. After storms, the beaches show a relative capacity for recovering because of calm conditions; however, different behaviours are observed along the same beach compartment. This suggests local influence of coastal structure and/or reef geomorphology in sediment transport processes. Coastlines Cyclones Champagne Reefs Climate change Soil erosion Tropical cyclones Storms Water levels Topography (geology) Geomorphology Recovering Coastal morphology Waves Sediment transport Transport processes Topography Coasts Beaches Orientation Coastal structures Banks (topography) Wave power Carbonates Dynamic tests Protection Dynamics Sediments Hurricanes Erosion Saline Transport Coral reefs Wave height Morphology Slopes (topography) Beach profiles Loads (forces) Capacity Economic conditions Beach erosion Enthalten in Journal of coastal research Fort Lauderdale, Fla. : CERF, 1985 33(2016), 4, Seite 839 (DE-627)129194530 (DE-600)53639-8 (DE-576)9129194539 0749-0208 nnns volume:33 year:2016 number:4 pages:839 http://dx.doi.org/10.2112/JCOASTRES-D-16-00031.1 Volltext https://search.proquest.com/docview/1922447109 GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-BIODIV SSG-OLC-PHY SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_22 GBV_ILN_23 GBV_ILN_70 GBV_ILN_183 38.48 AVZ AR 33 2016 4 839 |
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10.2112/JCOASTRES-D-16-00031.1 doi PQ20170901 (DE-627)OLC1996173839 (DE-599)GBVOLC1996173839 (PRQ)c1409-3cc9a46bf94ed51101045a59c6d7aa3dc7141f7570a2ea85dd8f7b477db65bc90 (KEY)0141275220160000033000400839effectoftropicalcyclonesonshorttermevolutionofcarb DE-627 ger DE-627 rakwb eng 550 530 DNB BIODIV fid 38.48 bkl Mahabot verfasserin aut Effect of Tropical Cyclones on Short-Term Evolution of Carbonate Sandy Beaches on Reunion Island, Indian Ocean 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Carbonate sandy beaches in Reunion Island show various forms of evidence of erosion. Extreme waves associated with tropical cyclones (TCs) play a major role in beach dynamics. The present study analyzes and quantifies back-reef beach response and recovery from forcing generated by TCs Dumile, Felleng, and Bejisa, which occurred in 2013 and 2014. The study focuses on carbonate beaches of Reunion Island from Cap Champagne to the Passe de Trois-Bassins. Morphological and volumetric changes on beaches were analyzed by comparing 19 beach profiles. The results show that TCs are able to cause significant morphosedimentary change on the back-reef beaches of Reunion Island. These changes affect beach topography and involve longshore and cross-shore sediment transport. An alongshore variation in beach response is observed, which varies according to tropical storm intensity and coastal morphology. The intensity of impact seems to be related to reef width. The most severe erosion occurred at Boucan Canot, where reef is absent with a loss of -24 ± 2 m3 after TC Dumile, -38.7 ± 1.2 m3 after Felleng, and -42.5 ± 1.6 m3 after Bejisa. Elsewhere, the volumetric changes is less than 5 m3 under TC Dumile and vary between 2 and 11 m3 under TC Felleng and between 2 and 23 m3 under TC Bejisa. No significant impact occurred at La Saline where the reef flat is large and provides good protection for the beach; however, relative coastline orientation and prestorm beach-profile morphology also play an essential role in storm impact. Wave height and water level are also determinant factors of storm erosion potential. After storms, the beaches show a relative capacity for recovering because of calm conditions; however, different behaviours are observed along the same beach compartment. This suggests local influence of coastal structure and/or reef geomorphology in sediment transport processes. Coastlines Cyclones Champagne Reefs Climate change Soil erosion Tropical cyclones Storms Water levels Topography (geology) Geomorphology Recovering Coastal morphology Waves Sediment transport Transport processes Topography Coasts Beaches Orientation Coastal structures Banks (topography) Wave power Carbonates Dynamic tests Protection Dynamics Sediments Hurricanes Erosion Saline Transport Coral reefs Wave height Morphology Slopes (topography) Beach profiles Loads (forces) Capacity Economic conditions Beach erosion Enthalten in Journal of coastal research Fort Lauderdale, Fla. : CERF, 1985 33(2016), 4, Seite 839 (DE-627)129194530 (DE-600)53639-8 (DE-576)9129194539 0749-0208 nnns volume:33 year:2016 number:4 pages:839 http://dx.doi.org/10.2112/JCOASTRES-D-16-00031.1 Volltext https://search.proquest.com/docview/1922447109 GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-BIODIV SSG-OLC-PHY SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_22 GBV_ILN_23 GBV_ILN_70 GBV_ILN_183 38.48 AVZ AR 33 2016 4 839 |
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Mahabot ddc 550 fid BIODIV bkl 38.48 misc Coastlines misc Cyclones misc Champagne misc Reefs misc Climate change misc Soil erosion misc Tropical cyclones misc Storms misc Water levels misc Topography (geology) misc Geomorphology misc Recovering misc Coastal morphology misc Waves misc Sediment transport misc Transport processes misc Topography misc Coasts misc Beaches misc Orientation misc Coastal structures misc Banks (topography) misc Wave power misc Carbonates misc Dynamic tests misc Protection misc Dynamics misc Sediments misc Hurricanes misc Erosion misc Saline misc Transport misc Coral reefs misc Wave height misc Morphology misc Slopes (topography) misc Beach profiles misc Loads (forces) misc Capacity misc Economic conditions misc Beach erosion Effect of Tropical Cyclones on Short-Term Evolution of Carbonate Sandy Beaches on Reunion Island, Indian Ocean |
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550 530 DNB BIODIV fid 38.48 bkl Effect of Tropical Cyclones on Short-Term Evolution of Carbonate Sandy Beaches on Reunion Island, Indian Ocean Coastlines Cyclones Champagne Reefs Climate change Soil erosion Tropical cyclones Storms Water levels Topography (geology) Geomorphology Recovering Coastal morphology Waves Sediment transport Transport processes Topography Coasts Beaches Orientation Coastal structures Banks (topography) Wave power Carbonates Dynamic tests Protection Dynamics Sediments Hurricanes Erosion Saline Transport Coral reefs Wave height Morphology Slopes (topography) Beach profiles Loads (forces) Capacity Economic conditions Beach erosion |
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ddc 550 fid BIODIV bkl 38.48 misc Coastlines misc Cyclones misc Champagne misc Reefs misc Climate change misc Soil erosion misc Tropical cyclones misc Storms misc Water levels misc Topography (geology) misc Geomorphology misc Recovering misc Coastal morphology misc Waves misc Sediment transport misc Transport processes misc Topography misc Coasts misc Beaches misc Orientation misc Coastal structures misc Banks (topography) misc Wave power misc Carbonates misc Dynamic tests misc Protection misc Dynamics misc Sediments misc Hurricanes misc Erosion misc Saline misc Transport misc Coral reefs misc Wave height misc Morphology misc Slopes (topography) misc Beach profiles misc Loads (forces) misc Capacity misc Economic conditions misc Beach erosion |
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ddc 550 fid BIODIV bkl 38.48 misc Coastlines misc Cyclones misc Champagne misc Reefs misc Climate change misc Soil erosion misc Tropical cyclones misc Storms misc Water levels misc Topography (geology) misc Geomorphology misc Recovering misc Coastal morphology misc Waves misc Sediment transport misc Transport processes misc Topography misc Coasts misc Beaches misc Orientation misc Coastal structures misc Banks (topography) misc Wave power misc Carbonates misc Dynamic tests misc Protection misc Dynamics misc Sediments misc Hurricanes misc Erosion misc Saline misc Transport misc Coral reefs misc Wave height misc Morphology misc Slopes (topography) misc Beach profiles misc Loads (forces) misc Capacity misc Economic conditions misc Beach erosion |
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effect of tropical cyclones on short-term evolution of carbonate sandy beaches on reunion island, indian ocean |
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Effect of Tropical Cyclones on Short-Term Evolution of Carbonate Sandy Beaches on Reunion Island, Indian Ocean |
| abstract |
Carbonate sandy beaches in Reunion Island show various forms of evidence of erosion. Extreme waves associated with tropical cyclones (TCs) play a major role in beach dynamics. The present study analyzes and quantifies back-reef beach response and recovery from forcing generated by TCs Dumile, Felleng, and Bejisa, which occurred in 2013 and 2014. The study focuses on carbonate beaches of Reunion Island from Cap Champagne to the Passe de Trois-Bassins. Morphological and volumetric changes on beaches were analyzed by comparing 19 beach profiles. The results show that TCs are able to cause significant morphosedimentary change on the back-reef beaches of Reunion Island. These changes affect beach topography and involve longshore and cross-shore sediment transport. An alongshore variation in beach response is observed, which varies according to tropical storm intensity and coastal morphology. The intensity of impact seems to be related to reef width. The most severe erosion occurred at Boucan Canot, where reef is absent with a loss of -24 ± 2 m3 after TC Dumile, -38.7 ± 1.2 m3 after Felleng, and -42.5 ± 1.6 m3 after Bejisa. Elsewhere, the volumetric changes is less than 5 m3 under TC Dumile and vary between 2 and 11 m3 under TC Felleng and between 2 and 23 m3 under TC Bejisa. No significant impact occurred at La Saline where the reef flat is large and provides good protection for the beach; however, relative coastline orientation and prestorm beach-profile morphology also play an essential role in storm impact. Wave height and water level are also determinant factors of storm erosion potential. After storms, the beaches show a relative capacity for recovering because of calm conditions; however, different behaviours are observed along the same beach compartment. This suggests local influence of coastal structure and/or reef geomorphology in sediment transport processes. |
| abstractGer |
Carbonate sandy beaches in Reunion Island show various forms of evidence of erosion. Extreme waves associated with tropical cyclones (TCs) play a major role in beach dynamics. The present study analyzes and quantifies back-reef beach response and recovery from forcing generated by TCs Dumile, Felleng, and Bejisa, which occurred in 2013 and 2014. The study focuses on carbonate beaches of Reunion Island from Cap Champagne to the Passe de Trois-Bassins. Morphological and volumetric changes on beaches were analyzed by comparing 19 beach profiles. The results show that TCs are able to cause significant morphosedimentary change on the back-reef beaches of Reunion Island. These changes affect beach topography and involve longshore and cross-shore sediment transport. An alongshore variation in beach response is observed, which varies according to tropical storm intensity and coastal morphology. The intensity of impact seems to be related to reef width. The most severe erosion occurred at Boucan Canot, where reef is absent with a loss of -24 ± 2 m3 after TC Dumile, -38.7 ± 1.2 m3 after Felleng, and -42.5 ± 1.6 m3 after Bejisa. Elsewhere, the volumetric changes is less than 5 m3 under TC Dumile and vary between 2 and 11 m3 under TC Felleng and between 2 and 23 m3 under TC Bejisa. No significant impact occurred at La Saline where the reef flat is large and provides good protection for the beach; however, relative coastline orientation and prestorm beach-profile morphology also play an essential role in storm impact. Wave height and water level are also determinant factors of storm erosion potential. After storms, the beaches show a relative capacity for recovering because of calm conditions; however, different behaviours are observed along the same beach compartment. This suggests local influence of coastal structure and/or reef geomorphology in sediment transport processes. |
| abstract_unstemmed |
Carbonate sandy beaches in Reunion Island show various forms of evidence of erosion. Extreme waves associated with tropical cyclones (TCs) play a major role in beach dynamics. The present study analyzes and quantifies back-reef beach response and recovery from forcing generated by TCs Dumile, Felleng, and Bejisa, which occurred in 2013 and 2014. The study focuses on carbonate beaches of Reunion Island from Cap Champagne to the Passe de Trois-Bassins. Morphological and volumetric changes on beaches were analyzed by comparing 19 beach profiles. The results show that TCs are able to cause significant morphosedimentary change on the back-reef beaches of Reunion Island. These changes affect beach topography and involve longshore and cross-shore sediment transport. An alongshore variation in beach response is observed, which varies according to tropical storm intensity and coastal morphology. The intensity of impact seems to be related to reef width. The most severe erosion occurred at Boucan Canot, where reef is absent with a loss of -24 ± 2 m3 after TC Dumile, -38.7 ± 1.2 m3 after Felleng, and -42.5 ± 1.6 m3 after Bejisa. Elsewhere, the volumetric changes is less than 5 m3 under TC Dumile and vary between 2 and 11 m3 under TC Felleng and between 2 and 23 m3 under TC Bejisa. No significant impact occurred at La Saline where the reef flat is large and provides good protection for the beach; however, relative coastline orientation and prestorm beach-profile morphology also play an essential role in storm impact. Wave height and water level are also determinant factors of storm erosion potential. After storms, the beaches show a relative capacity for recovering because of calm conditions; however, different behaviours are observed along the same beach compartment. This suggests local influence of coastal structure and/or reef geomorphology in sediment transport processes. |
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Effect of Tropical Cyclones on Short-Term Evolution of Carbonate Sandy Beaches on Reunion Island, Indian Ocean |
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<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a2200265 4500</leader><controlfield tag="001">OLC1996173839</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20220216152731.0</controlfield><controlfield tag="007">tu</controlfield><controlfield tag="008">170901s2016 xx ||||| 00| ||eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.2112/JCOASTRES-D-16-00031.1</subfield><subfield code="2">doi</subfield></datafield><datafield tag="028" ind1="5" ind2="2"><subfield code="a">PQ20170901</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)OLC1996173839</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-599)GBVOLC1996173839</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(PRQ)c1409-3cc9a46bf94ed51101045a59c6d7aa3dc7141f7570a2ea85dd8f7b477db65bc90</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(KEY)0141275220160000033000400839effectoftropicalcyclonesonshorttermevolutionofcarb</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">550</subfield><subfield code="a">530</subfield><subfield code="q">DNB</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">BIODIV</subfield><subfield code="2">fid</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">38.48</subfield><subfield code="2">bkl</subfield></datafield><datafield tag="100" ind1="0" ind2=" "><subfield code="a">Mahabot</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Effect of Tropical Cyclones on Short-Term Evolution of Carbonate Sandy Beaches on Reunion Island, Indian Ocean</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2016</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">ohne Hilfsmittel zu benutzen</subfield><subfield code="b">n</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Band</subfield><subfield code="b">nc</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Carbonate sandy beaches in Reunion Island show various forms of evidence of erosion. Extreme waves associated with tropical cyclones (TCs) play a major role in beach dynamics. The present study analyzes and quantifies back-reef beach response and recovery from forcing generated by TCs Dumile, Felleng, and Bejisa, which occurred in 2013 and 2014. The study focuses on carbonate beaches of Reunion Island from Cap Champagne to the Passe de Trois-Bassins. Morphological and volumetric changes on beaches were analyzed by comparing 19 beach profiles. The results show that TCs are able to cause significant morphosedimentary change on the back-reef beaches of Reunion Island. These changes affect beach topography and involve longshore and cross-shore sediment transport. An alongshore variation in beach response is observed, which varies according to tropical storm intensity and coastal morphology. The intensity of impact seems to be related to reef width. The most severe erosion occurred at Boucan Canot, where reef is absent with a loss of -24 ± 2 m3 after TC Dumile, -38.7 ± 1.2 m3 after Felleng, and -42.5 ± 1.6 m3 after Bejisa. Elsewhere, the volumetric changes is less than 5 m3 under TC Dumile and vary between 2 and 11 m3 under TC Felleng and between 2 and 23 m3 under TC Bejisa. No significant impact occurred at La Saline where the reef flat is large and provides good protection for the beach; however, relative coastline orientation and prestorm beach-profile morphology also play an essential role in storm impact. Wave height and water level are also determinant factors of storm erosion potential. After storms, the beaches show a relative capacity for recovering because of calm conditions; however, different behaviours are observed along the same beach compartment. This suggests local influence of coastal structure and/or reef geomorphology in sediment transport processes.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Coastlines</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Cyclones</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Champagne</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Reefs</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Climate change</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Soil erosion</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Tropical cyclones</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Storms</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Water levels</subfield></datafield><datafield tag="650" ind1=" " 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code="a">Orientation</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Coastal structures</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Banks (topography)</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Wave power</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Carbonates</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Dynamic tests</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Protection</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Dynamics</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Sediments</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Hurricanes</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Erosion</subfield></datafield><datafield tag="650" ind1=" " 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