著者・編者ALIMUDDIN, Ilham
BAYUAJI, Luhur
JOSAPHAT, Tetuko Sri Sumantyo
KUZE, Hiroaki
タイトル(掲載誌)Proceedings of the CEReS international symposium = CEReS国際シンポジウム資料集
一般注記type:text
[ABSTRACT]Most of the land subsidence events in large cities are associated with the withdrawal of large amounts of groundwater from an aquifer. Such events have occurred in a number of cities in the world due to the groundwater extraction required for development and modernization. Cities in Indonesia have experienced the same phenomena because of the excessive use of groundwater, resulting in the subsidence of the watertable. Study on land subsidence in Jakarta, the capital of Indonesia, was initiated in 1970s using various methods including the latest method based on ground positioning system (GPS) and differential interferometric synthetic aperture radar (DInSAR). Other cities such as Semarang, Surabaya, and Bandung have also been investigated using similar approaches. The target area of the present study is the city of Makassar, the capital city of South Sulawesi province. The population of the city has increased to 1.2 million in 2010 from the value of 0.94 million in 1990, causing the increased use of both land surface and ground water. Here the DInSAR analysis is conducted on the JERS-1 SAR data acquired during a six year period of 1993-1998. For field recognition, we make use of the QuickBird high resolution optical data, as well as the observation result from a recent field campaign performed in 2009. The result has indicated that the western part of Makassar has subsided by 10-15 cm during the period of JERS-1 SAR data acquisition. It is known that this part of the city used to be coastal areas and has been reclaimed after around the year 2000. Other than the ground water extraction, the land on the northern part of the city has also subsided due presumably to the load of warehouse and housing constructions. The DlnSAR result is in line with the field observation where some houses were levelled down from the initial surrounding and load of construction was clearly observed on some sites.
一次資料へのリンクURLhttps://opac.ll.chiba-u.jp/da/curator/106814/ceresIntlSympo-17-P118.pdf
連携機関・データベース国立情報学研究所 : 学術機関リポジトリデータベース(IRDB)(機関リポジトリ)