Modelling of Land Subsidence Induced By Ground Water Withdrawal Using GPS

Ayob Sharif, Kamaludin Omar, Majid Kadir

Abstract:	Studies on the modeling of land subsidence induced by ground-water withdrawal have received great interest by many researchers such as Chrzanowski (1989), Strange (1988), and others. However, most of the researchers utilized conventional method in obtaining the useful information to model the subsidence. There are a few studies that have been made to obtain the information using the Global Positioning System supplemented with terrestrial geodetic leveling (Chrzanowski, 1989). A study on land subsidence induced by ground water withdrawal will be carried out in the Kota Bahru area, which is located in the North East of the Peninsular Malaysia. The size of the study area is approximately 40 km x 40 km. Water-supply for this town is mainly derived from underground water resources. Extensive ground water withdrawal activity has occurred in this area. As a consequence, land subsidence occurrence induced by continuos groundwater withdrawal for a long period in this area may posed a serious problem in the future. The aim of this study is to model the land subsidence using high precision GPS technique. In this paper, some preliminary results are presented with a particular focus on the planning and field operation aspects.
Published in:	Proceedings of the 10th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1997) September 16 - 19, 1997 Kansas City, MO
Pages:	1207 - 1215
Cite this article:	Sharif, Ayob, Omar, Kamaludin, Kadir, Majid, "Modelling of Land Subsidence Induced By Ground Water Withdrawal Using GPS," Proceedings of the 10th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1997), Kansas City, MO, September 1997, pp. 1207-1215.
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