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Identification of Underground Rivers Using Very Low Frequency Electromagnetic and Graphical User Interface Matrix Laboratory: Implications for Groundwater Exploration

JURNAL ILMIAH PENDIDIKAN FISIKA AL BIRUNI · Vol. 14 No. 2 (2025) · hlm. 55–69

DOI
10.24042/jipfalbiruni.v14i2.27746
ISSN
2503-023X, 2303-1832
Terbit
2025-12-20
Penerbit
Universitas Islam Negeri Raden Intan Lampung, Indonesia
Bahasa
eng
Lisensi
creativecommons.org/licenses/by-sa/4.0

Abstrak

The research aims to detect underground rivers using 2D mapping and minimal-noise data. In this research, 2-dimensional (2D) mapping of underground rivers in karst areas was carried out using the geophysical method of very low-frequency electromagnetic waves, namely VLF-EM (Very Low Frequency Electromagnetic Method). Electromagnetic wave analysis is based on differences in object frequencies, which reflect subsurface resistivity and conductivity and are captured by the VLF-EM detector. The measurement results were analyzed using three filter equations (Moving Average, Fraser, and Karous H-Jelt) and the Graphics User Interface Matrix Laboratory (GUI-MatLab) Software. Apart from that, the use of GUI-MatLab aims to create VLF-EM data processing software that is better for 2D interpretation display and more efficient in processing (requiring data entry only once). The research area was located in the karst rock area of Gunung Kidul Regency, Yogyakarta, Indonesia, at coordinates 8.020°S and 110.36°E. The VLF-EM measurements and GUI-MatLab interpretation detected the presence of underground river flow crossing three villages in the study area (Timun Sari, Mojo Sari, and Peyuyon), with accurate results (conductive objects were easily distinguished). Therefore, based on this study, it is recommended that productive boreholes be drilled in the 3 villages where VLF measurements were taken. The productive borehole drilling is recommended in 3 villages.

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  • Lampung University
  • Universitas Gadjah Mada
  • Universitas Muslim Indonesia
  • Universitas Islam Negeri Raden Intan Lampung
  • Sumatera Institute of Technology
  • Indonesia University of Education
  • Sebelas Maret University
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Rekan penulisOrganisasiArtikel bersama
Jamaluddin JamaluddinChina University of Petroleum, East China4
Antomi SaregarUniversitas Islam Negeri Raden Intan Lampung3
Mochamad IqbalSumatera Institute of Technology3
Fredi Ganda PutraLampung University2
Rahma DianiUniversitas Islam Negeri Raden Intan Lampung2
Aryadi NurfalaqUniversitas Cokroaminoto Palopo2
Rizqi PrastowoInstitut Teknologi Nasional Yogyakarta2
Bayu Achil SadjabUniversitas Halmahera2
Ahmad AshariUniversitas Gadjah Mada1
Fitri PuspasariUniversitas Gadjah Mada1
Sugeng SutiarsoLampung University1
Nurhanurawati NurhanurawatiLampung University1
Dewi LengkanaLampung University1
Santi WidyawatiUniversitas Nahdlatul Ulama Lampung1
Suparman SuparmanIndonesia University of Education1
Khoirunnisa ImamaLampung University1
Adyt AnugrahUniversitas Islam Negeri Raden Intan Lampung1
Misbah MisbahLambung Mangkurat University1
Annisa Nur KhasanahSebelas Maret University1
Dadan RosanaYogyakarta State University1
İnsih WilujengYogyakarta State University1
Arifin SeptiyantoIndonesia University of Education1
Muhammad Nur HudhaSebelas Maret University1
Abdurrahman AbdurrahmanLampung University1
Maria MariaHasanuddin University1
Septian Tri NugrahaChina University of Petroleum, Beijing1
Alfian NawirUniversitas Muslim Indonesia1
Jamaluddin JamaluddinUniversitas Halu Oleo1
Ivan TaslimUniversitas Muhammadiyah Gorontalo1
Intan Noviantari ManyoeState University of Gorontalo1
Jamaluddin JamaluddinSekolah Tinggi Teknologi Migas1
Muhardi MustafaHasanuddin University1
Muhammad Adam MarnasAfiliasi tidak diketahui1
Habibie AnwarUniversitas Muslim Indonesia1

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Sumber metadata: OAI-PMH (metadata jurnal) http://ejournal.radenintan.ac.id/index.php/al-biruni/oai, pertama di-harvest 9 Nov 2026, terakhir terlihat 9 Nov 2026.
Metadata asli (oai_dc) 
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	<dc:title xml:lang="en">Identification of Underground Rivers Using Very Low Frequency Electromagnetic and Graphical User Interface Matrix Laboratory: Implications for Groundwater Exploration</dc:title>
	<dc:creator xml:lang="en">Umam, Rofiqul</dc:creator>
	<dc:creator xml:lang="en">Sismanto, Sismanto</dc:creator>
	<dc:creator xml:lang="en">Umar, Emi Prasetyawati </dc:creator>
	<dc:creator xml:lang="en">Siregar, Rahmat Nawi</dc:creator>
	<dc:creator xml:lang="en">Maula, Frida Yassar</dc:creator>
	<dc:creator xml:lang="en">Takahashi, Hirotaka</dc:creator>
	<dc:subject xml:lang="en">Groundwater exploration</dc:subject>
	<dc:subject xml:lang="en">GUI-MatLab</dc:subject>
	<dc:subject xml:lang="en">Karous-Hjelt</dc:subject>
	<dc:subject xml:lang="en">Underground river</dc:subject>
	<dc:subject xml:lang="en">VLF-EM</dc:subject>
	<dc:description xml:lang="en">The research aims to detect underground rivers using 2D mapping and minimal-noise data. In this research, 2-dimensional (2D) mapping of underground rivers in karst areas was carried out using the geophysical method of very low-frequency electromagnetic waves, namely VLF-EM (Very Low Frequency Electromagnetic Method). Electromagnetic wave analysis is based on differences in object frequencies, which reflect subsurface resistivity and conductivity and are captured by the VLF-EM detector. The measurement results were analyzed using three filter equations (Moving Average, Fraser, and Karous H-Jelt) and the Graphics User Interface Matrix Laboratory (GUI-MatLab) Software. Apart from that, the use of GUI-MatLab aims to create VLF-EM data processing software that is better for 2D interpretation display and more efficient in processing (requiring data entry only once). The research area was located in the karst rock area of Gunung Kidul Regency, Yogyakarta, Indonesia, at coordinates 8.020°S and 110.36°E. The VLF-EM measurements and GUI-MatLab interpretation detected the presence of underground river flow crossing three villages in the study area (Timun Sari, Mojo Sari, and Peyuyon), with accurate results (conductive objects were easily distinguished). Therefore, based on this study, it is recommended that productive boreholes be drilled in the 3 villages where VLF measurements were taken. The productive borehole drilling is recommended in 3 villages.</dc:description>
	<dc:publisher xml:lang="en">Universitas Islam Negeri Raden Intan Lampung, Indonesia</dc:publisher>
	<dc:date>2025-12-20</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:type xml:lang="en">Peer-reviewed Article</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejournal.radenintan.ac.id/index.php/al-biruni/article/view/27746</dc:identifier>
	<dc:identifier>10.24042/jipfalbiruni.v14i2.27746</dc:identifier>
	<dc:source xml:lang="en">Jurnal Ilmiah Pendidikan Fisika Al-Biruni; Vol. 14 No. 2 (2025): Jurnal Ilmiah Pendidikan Fisika Al-Biruni; 55-69</dc:source>
	<dc:source xml:lang="id">Jurnal Ilmiah Pendidikan Fisika Al-Biruni; Vol 14 No 2 (2025): Jurnal Ilmiah Pendidikan Fisika Al-Biruni; 55-69</dc:source>
	<dc:source>2503-023X</dc:source>
	<dc:source>2303-1832</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://ejournal.radenintan.ac.id/index.php/al-biruni/article/view/27746/10296</dc:relation>
	<dc:rights xml:lang="en">Copyright (c) 2025 Physics Education Department, UIN Raden Intan Lampung, Indonesia</dc:rights>
	<dc:rights xml:lang="en">http://creativecommons.org/licenses/by-sa/4.0</dc:rights>
</oai_dc:dc>