Identifikasi Struktur Akuifer Dangkal Berdasarkan Integrasi Kecepatan Gelombang Seismik dan Resistivitas Listrik: Studi Kasus Kawasan Terintegrasi Kemayoran
DOI:
https://doi.org/10.29303/goescienceed.v7i4.2978Keywords:
Aquifer, MASW, Seismic Refraction, ERT, KemayoranAbstract
Access to clean water in Indonesia still relies heavily on groundwater, making accurate mapping of aquifer structures essential, particularly in densely populated urban areas such as the Kemayoran Integrated Zone. Aquifer interpretation based on a single geophysical method, especially resistivity, has the potential to introduce ambiguity, since resistivity values are influenced by lithology, clay content, and fluid salinity. This study aims to identify shallow aquifer structures at two representative locations, namely Pademangan and Kemayoran, through the integration of shear wave velocity (Vs) and primary wave velocity (Vp) obtained from Multichannel Analysis of Surface Waves (MASW) and Seismic Refraction Tomography, the Vp/Vs ratio, and electrical resistivity from Electrical Resistivity Tomography (ERT) using dipole-dipole and Schlumberger configurations. The data were analyzed qualitatively based on the similarity of patterns, depths, and layer thicknesses. The results show that a shallow unconfined aquifer zone was consistently identified at depths of 15 to 45 meters, with a groundwater table at depths of 5 to 15 meters. Both locations are dominated by water-saturated clay and clayey sand with very low resistivity (<6 Ωm), indicating a possible influence of brackish water or seawater intrusion due to the proximity of the Kemayoran Integrated Zone to Jakarta's coastal area. The integration of seismic and resistivity parameters proved effective in reducing the ambiguity of single-method interpretation and provided a more comprehensive picture of aquifer structure.
References
Aizebeokhai, A. P. (2010). 2D and 3D geoelectrical resistivity imaging: Theory and field design. Scientific Research and Essays, 5(23), 3592–3605.
Elhaj, K. G. E. M. K. (2016). Subsurface delineation and cavity investigation using geophysical methods in Gua Musang, Kelantan, Malaysia [Master's thesis, Universiti Sains Malaysia]. https://doi.org/10.13140/RG.2.2.33212.85129
Elnashai, A. S., & Di Sarno, L. (2008). Fundamentals of earthquake engineering. John Wiley & Sons. https://doi.org/10.1002/9780470024867
Fachri, M., Delinom, R., & Martodjojo, S. (2002). Stratigrafi dan hidrostratigrafi Cekungan Airtanah Jakarta. Buletin Geologi, 34(3). https://digilib.itb.ac.id/index.php/gdl/view/2491
Gao, L., Pan, Y., Rieder, A., Bohlen, T., & Mao, W. (2023). Multiparameter 2-D viscoelastic full-waveform inversion of Rayleigh waves: A field experiment at Krauthausen test site. Geophysical Journal International, 234(1), 297–312. https://doi.org/10.1093/gji/ggad072
Heath, R. C. (1983). Basic ground-water hydrology (U.S. Geological Survey Water-Supply Paper 2220). U.S. Geological Survey. https://doi.org/10.3133/wsp2220
Kirsch, R. (Ed.). (2009). Groundwater geophysics: A tool for hydrogeology (2nd ed.). Springer. https://doi.org/10.1007/978-3-540-88405-7
Kramer, S. L. (1996). Geotechnical earthquake engineering. Prentice Hall.
Loke, M. H., Chambers, J. E., Rucker, D. F., Kuras, O., & Wilkinson, P. B. (2013). Recent developments in the direct-current geoelectrical imaging method. Journal of Applied Geophysics, 95, 135–156. https://doi.org/10.1016/j.jappgeo.2013.02.017
Loke, M. H. (2021). Tutorial: 2-D and 3-D electrical imaging surveys. Geotomo Software. https://www.geotomosoft.com/downloads.php
Mavko, G., Mukerji, T., & Dvorkin, J. (2020). The rock physics handbook (3rd ed.). Cambridge University Press. https://doi.org/10.1017/9781108333016
Ólafsdóttir, E. Á., Erlingsson, S., & Bessason, B. (2018). Tool for analysis of multichannel analysis of surface waves (MASW) field data and evaluation of shear wave velocity profiles of soils. Canadian Geotechnical Journal, 55(2), 217–233. https://doi.org/10.1139/cgj-2016-0302
Park, C. B., Miller, R. D., & Xia, J. (1999). Multichannel analysis of surface waves. Geophysics, 64(3), 800–808. https://doi.org/10.1190/1.1444590
Pasquet, S., Bodet, L., Longuevergne, L., Dhemaied, A., Camerlynck, C., Rejiba, F., & Guérin, R. (2015). Detecting different water table levels in a shallow aquifer with combined P-, surface and SH-wave surveys: Insights from Vp/Vs or Poisson's ratios. Journal of Applied Geophysics, 113, 38–50. https://doi.org/10.1016/j.jappgeo.2014.12.005
Paz, C., Alcalá, F. J., Carvalho, J. M., & Ribeiro, L. (2020). Integrated MASW and ERT imaging for geological definition of an unconfined alluvial aquifer sustaining a coastal groundwater-dependent ecosystem in southwest Portugal. Applied Sciences, 10(17), 5905. https://doi.org/10.3390/app10175905
Reynolds, J. M. (2011). An introduction to applied and environmental geophysics (2nd ed.). John Wiley & Sons.
Telford, W. M., Geldart, L. P., & Sheriff, R. E. (1990). Applied geophysics (2nd ed.). Cambridge University Press.
Turkandi, T., Agustyanto, D. A., & Hadiwijoyo, M. M. P. (1992). Peta geologi lembar Jakarta dan Kepulauan Seribu, Jawa. Pusat Penelitian dan Pengembangan Geologi.
World Health Organization & United Nations Children's Fund. (2020). Global progress report on WASH in health care facilities: Fundamentals first. WHO & UNICEF. https://washdata.org/sites/default/files/2020-12/WHO-UNICEF-2020-wash-in-hcf.pdf
Yunus, N., Rahman, A., & Ismail, N. (2025). Assessment of subsurface features and potential of groundwater delineation using 2-dimensional electrical resistivity imaging method. Journal of Sustainability Science and Management, 20(6), 1122–1139. https://doi.org/10.46754/jssm.2025.06.001
