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All Journal Jurnal Konstruksia Journal of Advanced Civil and Environmental Engineering RACIC : Rab Construction Research AGREGAT Jurnal Aplikasi Teknik Sipil Journal of Civil Engineering Science & Technology (CI-TECH) Jurnal Konstruksi Advance Sustainable Science, Engineering and Technology (ASSET) Media Konstruksi : Jurnal Ilmiah Teknik Sipil
Himatul Farichah
Teknik Sipil, Fakultas Teknik Dan Sains, Universitas Pembangunan Nasional Veteran Jawa Timur
Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Transportation

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Integrated 1D-2D Resistivity Inversion for Mapping Seawater Intrusion in a Coastal Aquifer:  Kenjeran-Surabaya, Indonesia Case Study Himatul Farichah; Bagas Aryaseta; Aulia Dewi Fatikasari; Dini Oktavia
Advance Sustainable Science Engineering and Technology Vol. 8 No. 1 (2026): November - January
Publisher : Science and Technology Research Centre Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v8i1.3002

Abstract

This study investigates the extent of intrusion in the Kenjeran coastal aquifer, Surabaya, Indonesia, through an integrated geophysical approach. Four one-dimensional Vertical Electrical Sounding (VES) surveys and two two-dimensional Electrical Resistivity Tomography (ERT) transects were conducted using Schlumberger and Wenner–Schlumberger configurations to obtain both depth-specific and laterally continuous resistivity data. The 1D VES results detected low-resistivity layers (<1.0 Ω·m) at depths exceeding 58–66 m, indicating deep saline groundwater. The 2D ERT sections identified wedge-shaped low-resistivity anomalies (0.1–0.8 Ω·m) at depths of 7.5 m to 48 m, indicating active intrusion progressing inland. Intrusion is more severe in the northern sector, with vertical penetration up to 48 m and horizontal encroachment beyond 200 m from the shoreline. The integration of 1D and 2D resistivity imaging proved effective in delineating saline–freshwater interfaces, enabling targeted mitigation measures and informed groundwater management to safeguard Kenjeran’s aquifer from further degradation.
Co-Authors Adinda Misela Agistya Rachma Larasati Ahmad Laudza Suari Akhmad Wildan Mukhollad Alfrendo Satyanaga Apta Kania Damayanti Arifah Ismi Ambiya Aryaseta, Bagas Asyraf Ibrahim Aulia Dewi Fatikasari Dian Purnamawati Solin Dina Kurnia Shanty Dini Oktavia Dio Alif Hutama Fikri Ghifari Firmansyah, Yerry Kahaditu Helmy Darjanto Isnaniati isnaniati Jovanda Rivansyah Marco Dian Qinanta Miladatul Khofifah Querida Addisty Prasetyo Rosy Lumintang Sofi Suhaimah Vandi Alextrianto Yerry Kahaditu Firmansyah