The Evaluation of The Relationship between Land Subsidence and Building Weights in Jakarta using DInSAR

Subsidence in Jakarta is a serious problem and has a significant impact on the living environment and socioeconomy. The main causes of land subsidence are the use of underground resources and groundwater pumping. However, recent studies suggest that urban structure and building weight may also be involved. In this study, using SAR images with the DInSAR method, which can observe ground displacement and changes with high accuracy, we analyzed land subsidence in Jakarta from 2008 to 2011 and evaluated the relationship between the subsidence and urban buildings. The analysis results indicate that land subsidence is more pronounced in areas with dense-height buildings than in surrounding areas. In addition, the amount of land subsidence was not significantly affected by soil distribution in height-building dense areas, suggesting that the weight of the height-buildings affects land subsidence. Further analysis will be conducted using long-term monitoring.