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2004 Tsunami - PubAg

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Last Updated: 16 October 2021

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2004 Post Tsunami Resilience and Recolonization of Mangroves in South Andaman, India

Mangrove resilience and the extent for new venues of mangrove emigration in the Southern component of south Andaman were examined making use of satellite interpretation and ground truthing as a result of after the devastating 26th December 2004 tsunami. 1069. 82 ha of Tsunami developed marshes were discovered in thirty five different towns. Nypa fruticans and Pandanus tectorius were found in 4 villages alone. Rhizophora mucronata was existing in all the eight new places whereas Rhizophora apiculata and Avicennia spp.

Source link: https://pubag.nal.usda.gov/catalog/7070026


A peak-over-threshold approach for the numerical modeling of 26 December 2004 Indian Ocean Tsunami at the Kalpakkam coast, Tamil Nadu, India

Exact estimate of tsunami wave heights along the seaside belts would be very essential for a Risk Based Decision Making system. In this research, the pertinent earthquake information was extracted from NOAA-NCEI for the geographical area bounded between 92. 96 ° E, 14. 14 ° N to 105. 75 ° E, 5. 89 ° N covering regions such as Sumatra Fault, Java Trench, and Spreading Ridge in the Andaman Sea. This research study checked out 89 quake events from 1770 to 2013. The preliminary information on considerable quake specifications viz; moderate damage, fatality toll exceeding a total of 10, quake magnitude of 7. 5 or greater, customized Mercalli strength of 10 or better, earthquakes that created a tsunami went through Peak-over-Threshold evaluation using Generalized Pareto Distribution for varying limits. Furthermore five different locations were identified to estimate the tsunami heights considering Kalpakkam as the nodal factor.

Source link: https://pubag.nal.usda.gov/catalog/7135821


Building Damage Detection of the 2004 Nagapattinam, India, Tsunami Using the Texture and Spectral Features from IKONOS Images

Nagapattinam province of Tamil Nadu, which was strongly attacked by the 2004 Indian Ocean tsunami, is selected as the demo site. At the first level, we studied the broken buildings from images information set. In the 2nd degree, 28 appearance features and 3 spooky attributes are removed, and after that 10 finest attributes are chosen for following phase by utilizing the statistical reliance function choice technique. The recommended approach has been applied on an IKONOS images in Nagapattinam city, and aesthetic validation shows that the proposed approach offers encouraging results.

Source link: https://pubag.nal.usda.gov/catalog/6303483


Proxy mineral magnetic and elemental analyses for 2004 tsunami impact deposit along the Muttukadu backwater, East Coast of India: Scope of the palaeotsunami studies

We found the enrichment of Fe and Pb, against deficiency of Mn concentration in existing tsunami sediments as compared with pre-tsunami Muttukadu sediments, showing the variation of the sediment source area. Nevertheless, the existing data of Fe and Pb enrichment and Mn depletion correlates well with continental rack sediments hinting at sedimentary paths, processes of disintegration and wave proliferation. It can be revealed that the random spatial variability and the inverted relationship in between magnetic focus χ, ARM and SIRM criteria and grain-size ARM/ χ, SIRM/ χ and ARM/SIRM ratios as diagnostic criteria for the tsunami impacted the circulation of magnetic criteria in seaside bayou environments. Contrasting mineral magnetic and geochemical properties together with more sand when compared to silt content in tsunami debris shows that the area was influenced by high-energy tsunami waves.

Source link: https://pubag.nal.usda.gov/catalog/6230109


Impact of the 2004 tsunami on the macrofauna of the continental slope of the southeast coast of India

The Indian Ocean tsunami of December 26, 2004 ravaged the southeast and southwest coasts of India. The effect of this tsunami on the macrobenthic areas of the continental incline off the southeast coast of India was assessed utilizing samples collected prior to the tsunami, 6 months after the tsunami, and 18 months post‐tsunami.

Source link: https://pubag.nal.usda.gov/catalog/6268364


Impact of 2004 co-seismic coastal uplift on the mangrove cover along the North Andaman Islands

Satellite pictures of the duration from 2003 to 2019 were made use of to assess the effect of seaside upliftment on the northern Andaman mangroves. With satellite information evaluation, we report a loss of 6500 ha of northern Andaman mangroves. Tidal hydrodynamics simulation under the post-earthquake circumstance showed a large location of mudflats deprived of tidal increase. The quake effect on the mangroves was not spontaneous, however a progressive process, where the mangroves were intact till Mach 2006. The quake and the resultant coastal uplift have substantially changed the coastal geomorphology as well as the plant demography of the study location. As mangroves are favored habitat for diverse aquatic and terrestrial organisms and function as a vital food source and adolescent sanctuaries for various fish species, the comprehensive loss of mangrove location may negatively affect a large scale organic ecosystem.

Source link: https://pubag.nal.usda.gov/catalog/6829092


Numerical simulation of the impacts of reflected tsunami waves on Pulo Raya Island during the 2004 Indian Ocean tsunami

These little islands have been discovered to be reliable at reducing tsunami wave energy on numerous events. This research explores the hydrodynamic processes of reflected tsunami waves and their effect on Pulo Raya, using a Cornell Multi-grid COupled Tsunami design to simulate the tsunami wave runup and subsequent hydrodynamic procedures. As a result, we can suggest that governments and areas on small islands require to anticipate the influences of mirrored waves following a tsunami, particularly at lee side of the island that was regarded to be a more secure place by the island community prior to the 2004 Indian Ocean tsunami.

Source link: https://pubag.nal.usda.gov/catalog/5733103


Barrier spit recovery following the 2004 Indian Ocean tsunami at Pakarang Cape, southwest Thailand

The 2004 Indian Ocean tsunami had significant effects on seaside landforms. Kept track of topography data show that an obstacle island was formed offshore from the cape several months after the tsunami occasion through progradation of multiple extended gravelly coastline ridges and washover follower made up of reefs crushed rocks. The 2004 Indian Ocean tsunami played a crucial duty in barrier spit evolution over a duration of at the very least a years.

Source link: https://pubag.nal.usda.gov/catalog/5685820


Domestic water supply, residential water use behaviour, and household willingness to pay: The case of Banda Aceh, Indonesia after ten years since the 2004 Indian Ocean Tsunami

In this study, we established an initial analysis of existing domestic water and use in Banda Aceh, Indonesia, a city that was hardest struck by the Indian Ocean Tsunami of 2004. Specifically, we conducted household survey to analyze water utilize behavior in relation to residential supply of water by neighborhood utility, public understanding on water system service, and household determination to spend for trustworthy water. Our research study results program that residential water system in the city has been boosting in service coverage yet is subject to high percents of non-revenue water, financial loss, and inadequate efficiency. Despite available faucet water, property families gain access to numerous water sources differentially between alcohol consumption and non-drinking objectives. All study participants want to spend for reputable water system service, with average WTP approximated at around 190% of existing home month-to-month water bill.

Source link: https://pubag.nal.usda.gov/catalog/6122167


Identification and characterization of tsunami deposits off southeast coast of India from the 2004 Indian Ocean tsunami: Rock magnetic and geochemical approach

The December 2004 Indian Ocean Tsunami had a major effect on the geomorphology and sedimentology of the east coastline of India. Estimate of the size of the tsunami from its deposits is a difficult subject to be created in studies on tsunami hazard assessment. Zone II is included by peculiar rock-magnetic, textural, mineralogical and geochemical trademarks in both debris cores that we analyze to match to the 2004 IOT deposit. These outcomes indicate a dilution of revamped ferromagnetic bits into a massive quantity of paramagnetic materials, similar to what has been described in various other nearshore tsunami deposits. These outcomes agreed well with the formerly published mathematical version of tsunami generated sediment transport off southeast coastline of India and can be utilized for future comparative studies on tsunami deposits.

Source link: https://pubag.nal.usda.gov/catalog/362395

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

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* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions