Beach recovery after 2004 Indian Ocean tsunami from Phang-nga, Thailand

Choowong, Montri; Phantuwongraj, Sumet; Charoentitirat, Thasinee; Chutakositkanon, Vichai; Yumuang, Sombat; Charusiri, Punya

doi:10.1016/j.geomorph.2008.08.007

Cited by 111 publications

(88 citation statements)

References 16 publications

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“…In general, the shelf gently dips offshore, reaching 60 m water depths within a distance of 30 km from the coastline. PC itself is surrounded by a 3 km long reef platform (Goto et al, 2007;Choowong et al, 2009;Di Geronimo et al, 2009). The tides in this area are mixed semidiurnal tides, with most days having two high tides and two low tides.…”

Section: Regional Settingmentioning

confidence: 99%

Internal structure of event layers preserved on the Andaman Sea continental shelf, Thailand: tsunami vs. storm and flash-flood deposits

Sakuna-Schwartz

Feldens

Schwarzer

et al. 2015

Nat. Hazards Earth Syst. Sci.

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Abstract. Tsunami, storm and flash-flood event layers, which have been deposited over the last century on the shelf offshore Khao Lak (Thailand, Andaman Sea), are identified in sediment cores based on sedimentary structures, grain size compositions, Ti / Ca ratios and 210 Pb activity. Individual offshore tsunami deposits are 12 to 30 cm in thickness and originate from the 2004 Indian Ocean Tsunami. They are characterized by (1) the appearance of sand layers enriched in shells and shell debris and (2) the appearance of mud and sand clasts. Storm deposits found in core depths between 5 and 82 cm could be attributed to recent storm events by using 210 Pb profiles in conjunction with historical data of typhoons and tropical storms. Massive sand layers enriched in shells and shell debris characterize storm deposits. The last classified type of event layer represents reworked flash-flood deposits, which are characterized by a fining-upward sequence of muddy sediment. The most distinct difference between storm and tsunami deposits is the lack of mud and sand clasts, mud content and terrigenous material within storm deposits. Terrigenous material transported offshore during the tsunami backwash is therefore an important indicator to distinguish between storm and tsunami deposits in offshore environments.

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Section: Regional Settingmentioning

confidence: 99%

Internal structure of event layers preserved on the Andaman Sea continental shelf, Thailand: tsunami vs. storm and flash-flood deposits

Sakuna-Schwartz

Feldens

Schwarzer

et al. 2015

Nat. Hazards Earth Syst. Sci.

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“…Although fatalities and damages to buildings and infrastructure were the most striking consequences of this tsunami disaster, environmental impacts and damages to ecosystems and related land use/land cover (LULC) also occurred. These included uprooted coastal forests, beach erosion, impacts on coral reefs and sea-grass, pollution, contamination from tsunami deposits, and salt infiltration in ground-and surface water as well as in soils affecting vegetation and soil fertility (Choowong et al, 2009;DMCR, 2005a, b;Massmann, 2010;Paphavasit et al, 2009;Pongpiachan et al, 2013;Roemer et al, 2010;Szczucinski et al, 2006;UNEP, 2005;Vosberg, 2010). While the impacts on coral reefs and sea grass beds in the region were comparably small, the damages to coastal forests, e.g.…”

Section: Ecological Impacts Of the Indian Ocean Tsunami In Phang Ngamentioning

confidence: 99%

Mapping tsunami impacts on land cover and related ecosystem service supply in Phang Nga, Thailand

Kaiser

Burkhard

Römer

et al. 2013

Nat. Hazards Earth Syst. Sci.

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Abstract. The 2004 Indian Ocean tsunami caused damages to coastal ecosystems and thus affected the livelihoods of the coastal communities who depend on services provided by these ecosystems. The paper presents a case study on evaluating and mapping the spatial and temporal impacts of the tsunami on land use and land cover (LULC) and related ecosystem service supply in the Phang Nga province, Thailand. The method includes local stakeholder interviews, field investigations, remote-sensing techniques, and GIS. Results provide an ecosystem services matrix with capacity scores for 18 LULC classes and 17 ecosystem functions and services as well as pre-/post-tsunami and recovery maps indicating changes in the ecosystem service supply capacities in the study area. Local stakeholder interviews revealed that mangroves, casuarina forest, mixed beach forest, coral reefs, tidal inlets, as well as wetlands (peat swamp forest) have the highest capacity to supply ecosystem services, while e.g. plantations have a lower capacity. The remote-sensing based damage and recovery analysis showed a loss of the ecosystem service supply capacities in almost all LULC classes for most of the services due to the tsunami. A fast recovery of LULC and related ecosystem service supply capacities within one year could be observed for e.g. beaches, while mangroves or casuarina forest needed several years to recover. Applying multi-temporal mapping the spatial variations of recovery could be visualised. While some patches of coastal forest were fully recovered after 3 yr, other patches were still affected and thus had a reduced capacity to supply ecosystem services. The ecosystem services maps can be used to quantify ecological values and their spatial distribution in the framework of a tsunami risk assessment. Beyond that they are considered to be a useful tool for spatial analysis in coastal risk management in Phang Nga.

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“…(Short, 1999 (Short, 1999;Aagaard et al, 2004;Wang et al, 2006;Choowong et al, 2009;Roberts et al, 2013;Wang e Briggs, 2015 …”

Section: Comparado O Regime De Impacto Observado Em Campo Com O Regimmentioning

confidence: 99%

Monitoramento contínuo de perfis de praia: quantificação da erosão ocasionada por ondas de tempestade e recuperação natural do estoque sedimentar, litoral do Rio de Janeiro

Filho

Fernández²

2017

Os Desafios Da Geografia Física Na Fronteira Do Conhecimento

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Eixo: DINÂMICA E GESTÃO DE ZONAS COSTEIRAS ResumoO monitoramento contínuo de praias tem como finalidade conhecer a morfodinâmica, analisar a evolução a curto e médio prazo da linha de costa e ainda detectar eventos anômalos ao clima de ondas, como ressacas excepcionais. O objetivo central desse trabalho foi mostrar a importância do monitoramento contínuo de praia para detecção e análise de impactos ocasionados por ondas de tempestade, bem como quantificar o tempo de recuperação, de duas praias arenosas, após uma tempestade excepcional em abril de 2010. As praias do Peró (intermediária/dissipativa) e Rio das Ostras (refletiva) foram analisadas quanto a variação volumétrica pré e pós-tempestade. Os resultados apontam que em condições morfodinâmicas refletivas, a praia encontra-se mais vulnerável, em decorrência da ausência de bancos arenosos. Apesar disso, a recuperação tende a ocorrer numa maior taxa volumétrica mensal, onde ondas de bom tempo transportam os sedimentos, dos bancos arenosos criados pela tempestade, novamente para a praia.Palavras chave: morfodinâmica de praia, resiliência costeira, erosão costeira. Introdução

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Beach recovery after 2004 Indian Ocean tsunami from Phang-nga, Thailand

Cited by 111 publications

References 16 publications

Internal structure of event layers preserved on the Andaman Sea continental shelf, Thailand: tsunami vs. storm and flash-flood deposits

Internal structure of event layers preserved on the Andaman Sea continental shelf, Thailand: tsunami vs. storm and flash-flood deposits

Mapping tsunami impacts on land cover and related ecosystem service supply in Phang Nga, Thailand

Monitoramento contínuo de perfis de praia: quantificação da erosão ocasionada por ondas de tempestade e recuperação natural do estoque sedimentar, litoral do Rio de Janeiro

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