海洋预报2013,Vol.30Issue(4):18-26,9.DOI:10.11737/j.issn.1003-0239.2013.04.003
温州瓯江口浅滩地区越洋海啸影响评估计算
Assessment of teletsunami for the Shoal areas of WenZhou Oujiang estuary
摘要
Abstract
Since the 3·11 Japan tsunami event,most of coastal countries not only strengthened theoretical research on physical mechanism of tsunami,but also improved tsunami warning system.In addition,tsunami hazards investigation and reevaluation has been carried out for major project and important guarantee objective along China's coast.Moreover,the major infrastructure projects and socio-economic function zoning should be comprehensively evaluted for tsunami hazards.In this paper,the temporal and spatial distribution characteristics of tsunami hazards were reviewed for China South-East coastal areas.A brief introduction about the propagation characteristic of transoceanic tsunami was given.Tsunami sources were base on the potential earthquake,which was selected on the circum-Pacific seismic belt.Assessment calculations were implemented by determined tsunami sources to evaluate tsunami hazards for the study area.COMCOT model,developed by Cornell University,was used in this paper.The model was validated by 2010 Chile tsunami and 2011 Japan tsunami.The near-field and far-field simulation results agreed well with the observation data.We referred the new tsunami hazard rank criteria recommended by UNESCO/IOC.Tsunami hazards classifications were divided for the shoal area of Oujiang estuary by analyzing the simulation results.Preliminary assessment results for tsunami hazards have been completed in the paper.The assessment results showed that the maximum amplitude generated from the selected 10 potential tsunami sources was less than 100cm,indicating that the potential tsunami in this region could not cause severe impact.The results will be benefit to guide tsunami disaster risk assessment and investigation for the study region.关键词
越洋海啸/评估计算/COMCOT模型/海啸危险性Key words
teletsunami/ assessment calculation/ COMCOT model/ tsunami hazard分类
海洋科学引用本文复制引用
王培涛,于福江,赵联大,侯京明..温州瓯江口浅滩地区越洋海啸影响评估计算[J].海洋预报,2013,30(4):18-26,9.基金项目
海洋公益项目(201205034) (201205034)