Sea-level rise in Hai Phong coastal area (Vietnam) and its response to ENSO - evidence from tide gauge measurement of 1960-2020

Hai, N. M.; /Ouillon, Sylvain; Vinh, V. D.

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dc.creator	Hai, N. M.
dc.creator	/Ouillon, Sylvain
dc.creator	Vinh, V. D.
dc.date	2022
dc.date.accessioned	2022-04-27T17:37:48Z
dc.date.available	2022-04-27T17:37:48Z
dc.identifier	https://www.documentation.ird.fr/hor/fdi:010084498
dc.identifier	oai:ird.fr:fdi:010084498
dc.identifier	Hai N. M., Ouillon Sylvain, Vinh V. D.. Sea-level rise in Hai Phong coastal area (Vietnam) and its response to ENSO - evidence from tide gauge measurement of 1960-2020. 2022, 44 (1), p. 109-126
dc.identifier.uri	http://biblioteca-repositorio.clacso.edu.ar/handle/CLACSO/169103
dc.description	The Hai Phong coastal area (Northwest of the Vietnam East Sea) is prosperous and densely populated, but it is also a place that is considered likely to be severely affected by sea-level rise. Based on the tide gauge measurement data at Hon Dau station during 1960-2020, the sea-level rise trends were analyzed and linked to the El Nifio Southern Oscillation (ENSO). The analyses were carried out separately for the whole period (1960-2020) and for the last 19 years (2002-2020) by the Mann-Kendall test and Sen's slope estimator. The Empirical Mode Decomposition method was used to identify the role of ENSO on the water level variability. The results showed a significant sea-level rise trend with a 95% confidence level. The average annual rates of sea-level were 3.56 mm/year and 7.78 mm/year over the periods 1960-2020 and 2002-2020, respectively, indicating a sea-level rise of about 21.4 cm over 60 years and a significant acceleration in sea-level rise recently (14.7 cm over the last 19 years). Sea-level that rose during El Nino events and declined during La Nifia, related to ENSO with cycles of 2 and 6.1 years. From 1960 to 2020, ENSO events took four months to impact the sea-level in the Hai Phong coastal area, causing sea-level variability within 3.7 to 7.2 cm over 1972-2020.
dc.language	EN
dc.subject	Sea-level rise
dc.subject	ENSO
dc.subject	interannual sea-level variability
dc.subject	Hon Dau
dc.subject	Hai Phong
dc.title	Sea-level rise in Hai Phong coastal area (Vietnam) and its response to ENSO - evidence from tide gauge measurement of 1960-2020
dc.type	text
dc.coverage	VIET NAM
dc.coverage	HAI PHONG
dc.coverage	HON DAU
dc.coverage	MER DE CHINE