3D modelling analysis of sea-level rise impact in Semarang, Indonesia

Abstract

Regarding the Intergovernmental Panel on Climate Change reports that sea-level may reach up to 74 cm in 2100. This prediction may be a crucial indicator for countries whereas located in low-lying areas. Due to the significant impact on economics and social, sea-level rise can be a severe problem in the future. Some of the big cities in Indonesia are in the coastal areas, such as Jakarta, Surabaya, and Semarang. They become the vulnerable city in Indonesia, which is affected by sea-level rise. The aim of the study is to model and analysis the impact of sea-level rise, particularly in Semarang city, Indonesia. In this study, sea-level rise can be estimated by satellite altimetry data for a long-term period. The impact of sea-level rise can be modeled and visualized using 3D modeling. The prediction over 50 years, the areas impacted by sea-level rise is about 807 km2. They mostly cover in the northern of Semarang city.