河北省风暴潮灾害风险评估研究

Research on Storm Surge Risk Assessment in Hebei Province

依据区域灾害系统理论,基于河北省沿海岸段风暴增水和超警戒潮位分布评估了河北省沿海地区风暴潮灾害危险性等级,利用土地利用分布数据评估了河北省沿海风暴潮灾害脆弱性等级,综合风暴潮灾害危险性和脆弱性等级分布,对河北省沿海乡镇风暴潮灾害风险等级进行了综合评估。结果表明河北省沿海2个乡(镇)处于1级风险等级区,4个乡(镇)处于2级风险等级区,13个乡(镇)处于3级风险等级区,22个乡(镇)处于4级风险等级区,其中唐山市的曹妃甸区滨海镇和沧州市的黄骅镇是河北省沿海乡(镇)的1级风险区。基于河北省沿海风暴潮灾害风险等级评估结果,提出了有针对性的河北省沿海地区风暴潮灾害防灾减灾对策与建议。

Storm surge is one of the most serious natural disasters in coastal areas of Hebei Province. Based on the theory of regional disaster system, we evaluate the hazards level of storm surge according to the surge and the alert warning tide level distribution in the coastline of Hebei Province, and the land use and land cover data was used to calculate storm surge vulnerability in the coastal of Hebei province. Taking into the hazards and vulnerabili- ty assessment results, the storm surge risk level was evaluated for each coastal town in Hebei Province. The results show that two towns are located in the first risk level zone, four towns in the second risk level zone, and 13 towns in the third risk level zone, 22 towns in the fourth risk level zone. Exactly, the Caofeidian town in Tangshan city and Huanghua port in Cangzhou city are located in the highest storm surge risk level. Based on the assessment re- sults of storm surge risk distribution in the coastal areas of Hebei Province, the countermeasures and suggestions for the prevention and mitigation of storm surges are proposed.