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Indigenous oral histories may contain inter-generational knowledge of events that have occurred prior to when written records began in the region. Traditional and indigenous knowledge can contribute to understanding tsunami risk, especially when the written history of a tsunami is limited and geological evidence has not been investigated. Utilise traditional knowledge to increase understanding of tsunami risk in project area.If the project site is within a tsunami inundation zone undertake a cost-benefit study of the risk of loss of the investment, or the benefit provided by the additional cost of engineered protection systems such as sea walls.This could start with performing tsunami inundation modeling for the range of possible tsunami threats to the project site. If the project is in a hazardous zone, collect more specific tsunami inundation data for the exact project location.by collecting local tsunami hazard information either from maps or by interviewing local governmental civil protection, indigenous communities’ members, and scientific organizations or international agencies if local knowledge/capacity does not exist. Find out if the exact project location is in a hazardous zone, e.g.Undertake evaluation of tsunami hazard and impact as part of project assessment.Supervising design, construction, and maintenance from a tsunami risk mitigation perspective.Understanding the tsunami risk to the project.
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Engage a qualified local or international tsunami expert with the goals of:.Lessons can be learned and effort saved by not re-inventing the wheel. Prior experience in the area may act as a starting point of project initiation, providing existing knowledge that can prove cost-effective.Other projects may have already dealt with tsunami hazard at this, or in a similar location or social context.If the tsunami hazard is high enough in this area to warrant site-specific risk analysis. Consider whether local site conditions (nearshore bathymetry and topography) could amplify tsunami hazard.This should include magnitude and frequency of tsunami.A tsunami hazard assessment should be carried out to identify what impacts may affect your site.Request their assistance in design, implementation and maintenance planning to minimise tsunami threat. TECHNICAL EXPERTISE: Engage qualified local or international experts, with experience in the local area, to determine the tsunami risk to your project. Projects in low-lying coastal areas such as deltas, or in island states should be designed to be robust to projected increases in global sea level. However, regional changes in sea level are difficult to predict.
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According to the IPCC (2013), global mean sea level rise depends on a variety of factors, and estimates for 2100 range from ~20 cm to nearly 1 m. Further detailed information should be obtained to adequately account for the level of hazard.Ĭlimate change impact: The areas at risk of tsunami will increase as global mean sea level rises. Project planning decisions, project design, and construction methods should take into account the level tsunami hazard. Based on this information, the impact of tsunami should be considered in different phases of the project for any activities located near the coast. This means that there is more than a 10% chance of a potentially-damaging tsunami occurring in the next 50 years. In the area you have selected (Sri Lanka) tsunami hazard is classified as medium according to the information that is currently available.