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Land Subsidence, Groundwater Extraction, and Flooding in Bandung Basin (Indonesia)

  • Irwan GumilarEmail author
  • H. Z. Abidin
  • H. Andreas
  • T. P. Sidiq
  • M. Gamal
  • Y. Fukuda
Conference paper
Part of the International Association of Geodesy Symposia book series (IAG SYMPOSIA, volume 139)

Abstract

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.

Keywords

Flooding GPS Groundwater extraction InSAR Land subsidence 

Notes

Acknowledgments

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.

References

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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Irwan Gumilar
    • 1
    Email author
  • H. Z. Abidin
    • 1
  • H. Andreas
    • 1
  • T. P. Sidiq
    • 1
  • M. Gamal
    • 1
  • Y. Fukuda
    • 2
  1. 1.Geodesy Research DivisionInstitute of Technology BandungBandungIndonesia
  2. 2.Graduate School of Science, Kyoto UniversityKyotoJapan

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