斯里兰卡海域海浪灾害危险性评估  

Risk assessment of wave disaster in Sri Lankan waters

作　　者：席林通 李醒飞[1,2,3] 仲伟 杨少波 XI Lintong;LI Xingfei;ZHONG Wei;YANG Shaobo(State Key Laboratory of Precision Measuring Technology and Instruments,Tianjin University,Tianjin 300072,China;Pilot National Laboratory for Marine Science and Technology(Qingdao),Qingdao 266003,China;Qingdao Institute for Ocean Technology of Tianjin University,Qingdao 266200,China;Shanghai Qidi Qingqing Enterprise Development Co.Ltd.,Shanghai 201799,China)

机构地区：[1]天津大学精密测试技术及仪器国家重点实验室,天津300072 [2]青岛海洋科学与技术试点国家实验室,山东青岛266003 [3]天津大学青岛海洋技术研究院,山东青岛266200 [4]上海启迪清青企业发展有限公司,上海201799

出　　处：《海洋湖沼通报》2022年第2期97-102,共6页Transactions of Oceanology and Limnology

基　　金：天津市重点研发计划科技支撑重点项目(18YFZCSF00620);天津市重点研发计划院市合作项目(18YFYSZC00120)。

摘　　要：为了加强“21世纪海上丝绸之路”关键节点海域的海浪灾害危险等级的预报能力,本文基于ERA-interim再分析数据评估了斯里兰卡海域海浪的危险指数,并对海浪危险等级进行了概率统计,对今后防灾减灾、沿海开发及海岸带管理具有实际指导。经分析:1)波高及波周期单指标的海浪灾害危险指标间不能相互代替,且单指标的海浪灾害危险等级分布不能完全反映真实海况;2)在双指标海浪灾害危险性评估下,斯里兰卡海域海浪危险指数的时空分布表现出明显的季节性差异,危险等级为Ⅲ级的海域占比最大,大值区主要分布于斯里兰卡西部及南部小范围海域;3)由年平均海浪危险指数分布可知,仅有小范围海域的危险等级达到了Ⅰ级,75%左右海域的灾害危险等级为Ⅲ级;且双指标海浪灾害危险性评估更加全面的反映真实海况。In order to enhance the prediction ability of the wave risk level in the key notes of the 21;-Century Maritime Silk Road,in this paper,we evaluated the wave risk index and made statistics on the wave risk level in the Sri Lankan waters based on the ERA-interim reanalysis data.Our findings has a practical reference value for disaster prevention and mitigation,coastal development and coastal zone management in the future.Single index of wave risk based on wave height or wave period cannot replace each other,and single index of wave risk level cannot fully represent the real sea conditions.Under the double indicator assessment of wave risk,the spatial and temporal distribution of wave risk index in Sri Lankan waters shows obvious seasonal differences.The waves with a risk level of III accounts for the largest percentage.The large value area is mainly distributed in the small areas of the west and south of Sri Lanka.According to the distribution of the annual average wave risk index,the risk level of small area has reached level 1,but 75.72 % of sea area is at level III.The assessment of double indicator of wave risk more comprehensively reflects the real sea situation.

关 键 词：斯里兰卡海域 灾害危险等级 危险指数 季节差异 危险性评估 

分 类 号：P724.8[天文地球—海洋科学] P731.33