Post-tsunami adjustment of coral reef platform and other morphometric changes in Landfall Island, North Andaman—An integrated field and remote sensing-based approach

Adhikari, Manik Das; Maiti, Sabyasachi; Bera, Anup; Chaudhury, Nandini Ray

doi:10.1016/j.rsma.2021.101975

Cited by 2 publications

(1 citation statement)

References 39 publications

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“…Vegetation damage can be seen by the negative change in NDVI values between the post-and pre-typhoon period (Mishra et al, 2021a;Hu & Smith, 2018). The coastline movement over the typhoon periods has been analyzed using the Digital Shoreline Analysis System (DSAS) program (Tsai, 2022;Adhikari et al, 2021;Bishop-Taylor et al, 2021;Santos et al, 2021). In order to monitor and protect coastal habitats, we need to understand the distribution and movement of SSC between rivers and coastal waters.…”

Section: Introductionmentioning

confidence: 99%

Assessing Typhoon Soulik-induced morphodynamics over the Mokpo coast region in South Korea based on a geo-spatial approach

Yum

Song

Adhikari

2022

Preprint

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Abstract. The inner shelf and coastal region of the Yellow Sea along the Korean peninsula are frequently impacted by Typhoons. The Mokpo coastal region in South Korea has been significantly affected by typhoon Soulik in 2018, the deadliest typhoon strike to the southwestern coast, since Maemi in 2003. Typhoon Soulik overran the region, causing extensive damage to the coast, shoreline, vegetation, and coastal geomorphology. Therefore, it is important to investigate its impact on the coastal ecology, landform, erosion/accretion, suspended sediment concentration (SSC) and associated coastal changes along the Mokpo region. In this study, net shoreline movement (NSM), Normalized Difference Vegetation Index (NDVI)), coastal landform change model, Normalized Difference Suspended Sediment Index (NDSSI), and SSC-reflectance relation have been used to analyze the coastal morphodynamics over the typhoon periods. We used pre- and post-typhoon Sentinel-2B MSI images for mapping and monitoring the typhoon effect. The findings highlighted the significant impacts of typhoons on coastal dynamics, wetland vegetation and sediment resuspension along the Mokpo coast. It has been observed that typhoon-induced SSC influences shoreline and coastal morphology. The outcome of this research may provide databases to manage coastal environments and a long-term plan to restore valuable coastal habitats. In addition, the findings may be useful for post-typhoon emergency response, coastal planners, and administrators involved in the long-term development of human life.

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Section: Introductionmentioning

confidence: 99%

Assessing Typhoon Soulik-induced morphodynamics over the Mokpo coast region in South Korea based on a geo-spatial approach

Yum

Song

Adhikari

2022

Preprint

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Assessing Typhoon Soulik-induced morphodynamics over the Mokpo coastal region in South Korea based on a geospatial approach

Yum¹,

Song²,

Adhikari³

2023

Nat. Hazards Earth Syst. Sci.

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Abstract. The inner shelf and coastal region of the Yellow Sea along the Korean Peninsula are frequently impacted by typhoons. The Mokpo coastal region in South Korea was significantly affected by Typhoon Soulik in 2018, the deadliest typhoon strike to the southwestern coast since Typhoon Maemi in 2003. Typhoon Soulik overran the region, causing extensive damage to the coast, shoreline, vegetation, and coastal geomorphology. Therefore, it is important to investigate its impact on the coastal ecology, landform, erosion/accretion, suspended-sediment concentration (SSC), and associated coastal changes along the Mokpo region. In this study, the net shoreline movement (NSM), normalized difference vegetation index (NDVI), fractional vegetation coverage (FVC), coastal-landform change model, normalized difference suspended-sediment index (NDSSI), and SSC–reflectance relation have been used to analyze the coastal morphodynamics over the typhoon periods. We used pre- and post-typhoon Sentinel-2 MultiSpectral Instrument (MSI) images for mapping and monitoring the typhoon effect and recovery status of the Mokpo coast through short- and medium-term coastal-change analysis. The findings highlighted the significant impacts of typhoons on coastal dynamics, wetland vegetation, and sediment resuspension along the Mokpo coast. It has been observed that typhoon-induced SSC influences shoreline and coastal morphology. The outcome of this research may provide databases to manage coastal environments and a long-term plan to restore valuable coastal habitats. In addition, the findings may be useful for post-typhoon emergency response, coastal planners, and administrators involved in the long-term development of human life.

show abstract

Post-tsunami adjustment of coral reef platform and other morphometric changes in Landfall Island, North Andaman—An integrated field and remote sensing-based approach

Cited by 2 publications

References 39 publications

Assessing Typhoon Soulik-induced morphodynamics over the Mokpo coast region in South Korea based on a geo-spatial approach

Assessing Typhoon Soulik-induced morphodynamics over the Mokpo coast region in South Korea based on a geo-spatial approach

Assessing Typhoon Soulik-induced morphodynamics over the Mokpo coastal region in South Korea based on a geospatial approach

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