인도네시아 자카르타만의 연안범람 방지를 위한 수치모델을 이용한 정책개발 연구

Abstract

The coastal flooding is one of major social problems in the coastal area of Jakarta bay, Indonesia. The factors of coastal flooding are mainly land subsidence, sea-level rise, unusual high tide and storm surge. The rate of land subsidence and sea-level rise is about 10cm/yr and 7mm/yr. These two factors can be predicted and are occurred gradually. However, the unusual high tide and storm surge occur suddenly even though the incidence is low. In 2007, about 30cm height of the unusual high tide occurred by the tropical cyclone Hagibis and Mitag in Jakarta. Furthermore, coastal dike does not have enough margins from A.H.H.W. on Jakarta bay. So, for preventing coastal flooding, we should know how much and when sea level will be raised by unusual high tide and storm surge. In this paper, we developed the numerical model using WRF, SWAN and MOHID for calculating tide, wave height and storm surge height in Jakarta bay. And we suggested counter measures based on relation analysis with area characteristics and storm surge height which is calculated by the numerical model.nd sea-level rise is about 10cm/yr and 7mm/yr. These two factors can be predicted and are occurred gradually. However, the unusual high tide and storm surge occur suddenly even though the incidence is low. In 2007, about 30cm height of the unusual high tide occurred by the tropical cyclone Hagibis and Mitag in Jakarta. Furthermore, coastal dike does not have enough margins from A.H.H.W. on Jakarta bay. So, for preventing coastal flooding, we should know how much and when sea level will be raised by unusual high tide and storm surge. In this paper, we developed the numerical model using WRF, SWAN and MOHID for calculating tide, wave height and storm surge height in Jakarta bay. And we suggested counter measures based on relation analysis with area characteristics and storm surge height which is calculated by the numerical model.