Land Subsidence Measurement of Jakarta Coastal Area Using Time Series Interferometry with Sentinel-1 SAR Data. Journal of Coastal Research. 2021, 13, 1365. https://doi.org/10.2112/SI102-010.1 Click The selected points in Area A are mostly showing a linear subsidence trend while in Area B are shows a quite-periodic subsidence trend. Those periodic subsidence trends made the standard deviation in linear fit in Figure 3e and 4e larger than in Figure 3d and 4d these results happen due to the distribution of land use in area A are mostly prestigious residential area such as apartment building and housing estates which does not use groundwater as its main water source while in area B is surrounded by small houses, small commercial, and industrial area that mostly used groundwater as the water source.Continue reading... Land Subsidence Susceptibility Mapping in Jakarta Using Functional and Meta-Ensemble Machine Learning Algorithm Based on Time-Series InSAR Data. Remote Sensing. 2020, 12(21), 3627. https://doi.org/10.3390/rs12213627 Click Jakarta is mostly situated on young alluvial soil, which cannot tolerate the maximum compression force of many buildings. Thus, compaction of the unconsolidated alluvial soil occurs and is exacerbated by groundwater extraction (because pore pressure is reduced, leading to further clay compaction). The periodic subsidence shown was affected due to the variable climate in Jakarta, which is generally characterized by high rainfall but a dry summer. In the rainy season, the groundwater level of all aquifers beneath Jakarta increases, which manifests as an uplift Continue reading...
