Application of A10 absolute gravimeter formonitoring land subsidence in Jakarta, Indonesia

Yoichi Fukuda, Jun Nishijima, Yayan Sofyan, Makoto Taniguchi, Mahmud Yusuf, Hasanuddin Z. Abidin

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

3 被引用数 (Scopus)

抄録

To investigate the cause of land subsidence occurring in Jakarta, Indonesia, we have conducted absolute gravity measurements near or at the existing GPS points in 2008, 2009, 2010, 2011 and 2013, by using a portable absolute gravimeter Micro-G LaCoste A10 serial number 017 (MGL A10-017). The A10 measurements, particularly those conducted before 2010, were adversely affected by the influence of the high-temperature and high-humidity climate, which caused problems with the ion vacuum pump, laser controls and unstable behavior of the data processing personal computer. Moreover, some of the gravity points were lost mainly due to construction work. For these reasons, the number of reliable gravity data was restricted. Nevertheless, the observed gravity changes along the northern coastal area of Jakarta showed an increase in gravity, which was consistent with the GPS results. The analysis of the height changes versus the gravity changes suggested that the subsidence was caused by soil compaction and/or groundwater level changes, which are likely connected with excessive groundwater extraction.

本文言語英語
ホスト出版物のタイトルInternational Symposium on Geodesy for Earthquake and Natural Hazards (GENAH) - Proceedings of the International Symposium on Geodesy for Earthquake and Natural Hazards (GENAH)
編集者Manabu Hashimoto
出版社Springer Verlag
ページ127-134
ページ数8
ISBN(印刷版)9783319397672
DOI
出版ステータス出版済み - 2017
イベントProceedings of the International Symposium on Geodesy for Earthquake and Natural Hazards, GENAH 2014 - Matsushima, 日本
継続期間: 7 22 20147 26 2014

出版物シリーズ

名前International Association of Geodesy Symposia
145
ISSN(印刷版)0939-9585

その他

その他Proceedings of the International Symposium on Geodesy for Earthquake and Natural Hazards, GENAH 2014
Country日本
CityMatsushima
Period7/22/147/26/14

All Science Journal Classification (ASJC) codes

  • Computers in Earth Sciences
  • Geophysics

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