PEMODELAN POTENSI LAND SUBSIDENCE DI WILAYAH PESISIR PULAU SULAWESI
The increase in population and the development of a city also results in rapid development, such as settlements and industry. The construction of a fairly high residential area will certainly increase the effect of loading on infrastructure on the ground and also the potential for groundwater extrac...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/65957 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | The increase in population and the development of a city also results in rapid development, such as settlements and industry. The construction of a fairly high residential area will certainly increase the effect of loading on infrastructure on the ground and also the potential for groundwater extraction. Likewise, industrial development that is growing will increase the potential for large-scale expansion such as oil and gas exploitation and conversion of peatlands into production land. This will have a negative effect on the development of local community activities, one of which is the phenomenon of land subsidence. To minimize this, it is necessary to model the potential for land subsidence. The modeling will be carried out with a spatial analysis of the factors causing the phenomenon of land subsidence. In addition to modeling, this study also tested the quality of the potential model by comparing it visually using land subsidence monitoring data. The land subsidence monitoring data is obtained from InSAR technology and processed using the Two-Pass Differential Interferometric Synthetic Aperture Radar (DInSAR) technique. The data used is secondary data, namely satellite imagery of Sentinel 1A SLC IW level 1 radar, data on soft soil sediments, data on conversion of peat lands (to HTI and oil palm), data on oil and gas exploitation areas, and data on residential areas. Data processing in this study was carried out using SNAP and ArcGIS software. The results of modeling the potential for land subsidence can provide information about the possible value of the rate of land subsidence that can occur in the coastal areas of the island of Sulawesi, with a decline range of about 1-6 cm/year. It is hoped that the modeling of the potential for land subsidence in this study can be used as a reference by the government and stakeholders in developing urban areas and mitigating natural disasters. |
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