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All Journal Jurnal Ilmu dan Teknologi Kelautan Tropis
Naufan Winggar Rahman
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Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Library & Information Science

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PENERAPAN METODE MIGRASI BEDA HINGGA PADA DATA SEISMIK POST STACK DI UTARA LAUT BALI PERAIRAN UTARA BALI Naufan Winggar Rahman; Siti Sailah; Tumpal B. Nainggolan
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 15 No. 1 (2023): Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jitkt.v15i1.41541

Abstract

Field seismic data obtained during the marine survey at the Northern Bali Sea contained complex geological structures such as flat and steep-dip seabed and velocity perpendicular to the direction of motion (lateral velocity) variation. This study aims to implement the best finite difference algorithm namely fast explicit, steep dip and implicit migrations in yielding more accurate migrated seismic image with true reflection point of dipping structures. Finite difference method is a method which is applied to find differential operators in wave equations explicitly or implicitly. It is carried out after going through the stacking velocity stage, in which this stage produces the results of the interval velocity of seismic wave travel time on depth interval (Vint)model needed as input to carry out the finite difference process. Post-stack Implicit Finite Difference Time Migration algorithm shows the most accurate migrated seismic image with noise suppression of bandpass frequency results. It improves signal to noise ratio and image quality of migrated seismic section.
Co-Authors Siti Sailah, Siti Tumpal B. Nainggolan