Identification of Subsurface Water Flow Using Gradient Horizontal Gravity Data in Tanjung Priok and Koja, North Jakarta

Gita Puspa Ayu, M. Syamsu Rosid, Fajar Bahari Kusuma

Research output: Contribution to journalConference articlepeer-review

Abstract

The presence of saline or salt water in the Jakarta groundwater aquifer is still widely debated by various geologists and groundwater experts. This study intends to identify the cause of the high salinity of groundwater at Tanjung Priok and Koja, North Jakarta. The First Horizontal Derivative (FHD) method of gravity data is applied to identify the direction of subsurface fluid flow. It is also supported by groundwater sample data and self potential (SP) data. The direction of fluid flow on the FHD contour map is indicated from low to high FHD value. From gravity data, Bouguer density values obtained in the study area were 2.12 gr/cm3. This study focuses on surface aquifers so that it is necessary to separate regional and residual anomalies. The results show that the direction of fluid flow is from north to south, there is a high FHD value that is distributed around the coordinates (709000, 9322000) which may indicate as the salt depositions of sea water intrusion.

Original languageEnglish
Article number012093
JournalJournal of Physics: Conference Series
Volume1351
Issue number1
DOIs
Publication statusPublished - 18 Dec 2019
EventUniversitas Riau International Conference on Science and Environment 2019, URICSE 2019 - Pekanbaru, Indonesia
Duration: 10 Sep 2019 → …

Fingerprint Dive into the research topics of 'Identification of Subsurface Water Flow Using Gradient Horizontal Gravity Data in Tanjung Priok and Koja, North Jakarta'. Together they form a unique fingerprint.

Cite this