Land Subsidence, Groundwater Extraction, and Flooding in Bandung Basin (Indonesia)
Increase in urban development activities and urbanization rate in the Bandung Basin have increased groundwater extraction from the aquifers, which has then led to land subsidence in several locations in the basin. Based on GPS (Global Positioning System) and InSAR (Interferometry Syntetic Aperture Radar) data, the estimated subsidence rates vary spatially from 2 to 20 cm/year. Maximum subsidence during the period of 1999–2010 is about 3 m and largest in industrial areas. Site visit surveys were also conducted to map and evaluate the impacts of the land subsidence.
Based on the site visit surveys, the impacts of land subsidence can be seen in several forms such as cracks in buildings, damage of infrastructure (road and bridges), tilting and damaged houses, and change in the flooding inundation area. Flooding frequently occurs in the area where the subsidence rate is high. For example, the 2010 heavy flooding covered the areas where the subsidence is about 7–10 cm/year. This suggests that land subsidence aggravates the flooding hazard in the Bandung Basin.
KeywordsFlooding GPS Groundwater extraction InSAR Land subsidence
This research is a part of the first author’s PhD studies and it has been supported by the 2010 ITB research grants and the JICA. The GPS surveys were conducted by the Geodesy Research Division of ITB. We would like to thank the editor Dr. Pascal. Willis, Dr. Donald Argus as reviewer, and one anonymous reviewer for their valuable comments that helped to improve the quality of the manuscript.
- Abidin HZ, Gumilar I, Andreas H, Sidiq TP, Fukuda (2011). Study on causes and impacts of land subsidence in Bandung Basin, Indonesia. Paper presented in FIG working week 2011, bridging the gap between cultures, Marrakech, Marocco, 18–22 May 2011Google Scholar
- Beutler G, Bock H, Dach R, Fridez P, Gade A, Hugentobler U, Jaggi A, Meindl M, Mervant L, Prange L, Schaer S, Springer T, Urschl C, Walser P (2007) In: Dach R, Hugentobler U, Fridez P, Meindl M (eds) Bernese GPS software version 5.0. Astronomical Institute, University of Berne, Berne, p 612Google Scholar
- Iwaco-Waseco (1991) Bandung hydrological study. Main Report Annex 1: surface water resourcesGoogle Scholar
- Karabatic Anna (2011) Precise Point Positioning (PPP)—an alternative technique for ground base GNSS troposphere monitoring. Dissertation, Technisce Universitat Wien, ViennaGoogle Scholar
- Soetrisno S (1996) Impact of urban and industrial development on groundwater, Bandung, West Java, Indonesia. Paper presented at the Symposium on groundwater and landuse planning, Fremantle, Western Australia, 16–18 September 1996Google Scholar
- Viets VF (2010) Environmental and economic effects of subsidence. LBNL Paper LBL-8615, Lawrence Berkeley National Laboratory. Available at http://escholarship.org/uc/item/1sb4c8vh
- Wangsaatmaja S, Sutadian AD, Prasetiati MAN (2006) A review of groundwater issues in the Bandung Basin, Indonesia: management and recommendations. Int Rev Environ Strat 6(2). http://www.iges.or.jp/en/pub/ires/volume6_2.html
- Wirakusumah AD (2006) Airtanah Bandung raya. Makalah disajikan pada lokakarya pemenuhan kebutuhan air baku di Cekungan Bandung Tahun 2025, Bandung, 28 February 2006Google Scholar