INVERSI DATA GEOLISTRIK MENGGUNAKAN PARTICLE SWARM OPTIMIZATION: STUDI KASUS DESA GAYAU
نویسندگان
چکیده
Desa Gayau yang terletak di Kecamatan Padang Cermin, Kabupaten Pesawaran sering mengalami kekeringan air pada saat musim kemarau sehingga perlu dilakukannya pengukuran geolistrik untuk mengidentifikasi keberadaan lapisan akuifer tanah. Pada penelitian ini konfigurasi digunakan adalah Schlumberger dengan panjang bentangan MN/2 sebesar 1, 5, 10, dan 20 meter. Sedangkan AB/2 6 hingga 300 tahapan inversi data VES, kami menggunakan algoritma Particle Swarm Optimization (PSO) memperoleh nilai parameter resistivitas ketebalan lapisan. Algoritma dipilih karena cepat menuju konvergen relatif stabil. Hasil dari diperoleh bahwa pertama berada kedalaman 21.4 - 52.1 meter litologi batupasir berbutir halus sisipan tufa Lapisan kedua 52.1-70 breksi. 70 diinterpretasikan sebagai tanah, namun memiliki debit kecil. Hal disebabkan berupa breksi, dasit lava basal Formasi Hulusimpang. Sistem aliran tanah merupakan sistem media pori berakibat rendah waktu pengisian kembali lama.
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ژورنال
عنوان ژورنال: JGE
سال: 2021
ISSN: ['2356-1599', '2685-6182']
DOI: https://doi.org/10.23960/jge.v7i2.118