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All Journal JGE (Jurnal Geofisika Eksplorasi) JURNAL ILMIAH PENDIDIKAN FISIKA AL BIRUNI
Adi Prabowo
Universitas Islam Negeri Walisongo Semarang
Earth & Planetary Sciences Education Electrical & Electronics Engineering Physics

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ANALISIS POTENSI AIR TANAH MENGGUNAKAN METODE VERTICAL ELECTRICAL SOUNDING (VES) DI KELURAHAN HARGOMULYO Adi Prabowo; Hartono Hartono; Oscar Kaeni
JGE (Jurnal Geofisika Eksplorasi) Vol 8, No 2 (2022)
Publisher : Engineering Faculty Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jge.v8i2.189

Abstract

Ketersediaan air tanah di Kelurahan Hargomulyo, Kapanewon Gedangsari, Kabupaten Gunung Kidul, D. I. Yogyakarta belum bisa mencukupi dengan banyaknya jumlah penduduk yang ada. Maka dari itu, dibutuhkan suatu studi pendugaan air tanah guna mendeteksi keberadaan lapisan air tanah (akuifer) di wilayah penelitian. Studi ini terlaksana pada tanggal 7 Agustus 2021 dengan titik ukur sebanyak 3 titik. Pendugaan kedalaman akuifer dalam studi ini memakai metode VES (Vertical Electrical Sounding) dengan menggunakan susunan elektroda Schlumberger. Metode VES adalah salah satu metode tahanan jenis yang bisa dimanfaatkan untuk pendugaan lapisan litologi bawah permukaan seperti lapisan akuifer. Pengambilan data lapangan VES dilakukan dengan memakai dua buah elektroda arus stainless steel dan elektroda potensial tembaga. Panjang bentangan pada tiap-tiap titik ukur, yaitu 400 meter. Data sounding tiap titik pengukuran diinterpretasi dengan memakai perangkat lunak HIRA, kemudian hasil interpretasi ditampilkan dalam bentuk log tahanan jenis dengan memperlihatkan nilai tahanan jenis, kedalaman, serta ketebalan tiap-tiap lapisan. Berdasarkan hasil pengolahan data diperoleh 10 hingga 12 lapisan batuan. Hasil analisis dari korelasi antar titik pengukuran dalam tiap lintasan memperlihatkan bahwa di daerah penelitian ada dua jenis akuifer, yaitu akuifer dangkal dan akuifer dalam. Akuifer dangkal ditemukan pada kedalaman 5-16 meter dengan nilai resistivitas berkisar antara 12,79 sampai 12,83 ohm.m, sedangkan akuifer dalam ditemukan pada kedalaman 22-85 meter dengan nilai resistivitas berkisar antara 10,56 sampai 16,85 ohm.m.
Groundwater Survey Using Resistivity Method for Drought Mitigation in Bima Regency, West Nusa Tenggara Adi Prabowo; Hartono Hartono; Oscar Kaeni
Jurnal Ilmiah Pendidikan Fisika Al-Biruni Vol 11, No 2 (2022): Jurnal Ilmiah Pendidikan Fisika Al-Biruni
Publisher : Universitas Islam Negeri Raden Intan Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/jipfalbiruni.v11i2.13895

Abstract

Groundwater Survey in Bolo District, Palibelo District, Woha District, Langgudu District, Wawo District, Sape District, Wera District, Bima Regency, and West Nusa Tenggara for drought mitigation has been implemented. The study area is located in the majority of hilly areas with soil vulnerable to drought. Water is abundant during the rainy season. However, during the dry season, the ground surface is cracked, and there needs to be more clean water. This situation is troubling the community and the Regional Government of Bima Regency. The study was conducted using the Schlumberger resistivity geoelectric configuration method. The measurement point is in seven sub-districts, with a total of 18 measurement points. Research location at 118,6305833 SL; -8,3008888889 EL up to 119,01925 SL; -8,704638889 EL or covers an area of ± 1,961 km2. The length of the path used is a maximum of 400 meters. Based on the results of geoelectric resistivity data, two types of aquifers are found, open aquifers with depths ranging from 1 m to 26 m and aquifers depressed with depths ranging from 70 to 115 m. In addition to geoelectric information data, drilling data is also used at points that can be reached by heavy equipment in Lanta Barat Village, Lambu District. At the drilling point, the presence of an aquifer layer is obtained at a depth of about 80 meters. Residents then use the discovery of the wellbore to meet their need for clean water.
Groundwater Survey Using Resistivity Method for Drought Mitigation in Bima Regency, West Nusa Tenggara Adi Prabowo; Hartono Hartono; Oscar Kaeni
Jurnal Ilmiah Pendidikan Fisika Al-Biruni Vol 11, No 2 (2022): Jurnal Ilmiah Pendidikan Fisika Al-Biruni
Publisher : Universitas Islam Negeri Raden Intan Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/jipfalbiruni.v11i2.13895

Abstract

Groundwater Survey in Bolo District, Palibelo District, Woha District, Langgudu District, Wawo District, Sape District, Wera District, Bima Regency, and West Nusa Tenggara for drought mitigation has been implemented. The study area is located in the majority of hilly areas with soil vulnerable to drought. Water is abundant during the rainy season. However, during the dry season, the ground surface is cracked, and there needs to be more clean water. This situation is troubling the community and the Regional Government of Bima Regency. The study was conducted using the Schlumberger resistivity geoelectric configuration method. The measurement point is in seven sub-districts, with a total of 18 measurement points. Research location at 118,6305833 SL; -8,3008888889 EL up to 119,01925 SL; -8,704638889 EL or covers an area of ± 1,961 km2. The length of the path used is a maximum of 400 meters. Based on the results of geoelectric resistivity data, two types of aquifers are found, open aquifers with depths ranging from 1 m to 26 m and aquifers depressed with depths ranging from 70 to 115 m. In addition to geoelectric information data, drilling data is also used at points that can be reached by heavy equipment in Lanta Barat Village, Lambu District. At the drilling point, the presence of an aquifer layer is obtained at a depth of about 80 meters. Residents then use the discovery of the wellbore to meet their need for clean water.
Co-Authors Hartono Hartono Oscar Kaeni