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All Journal Civil and Environmental Science Journal (CIVENSE) Jurnal Marine Inside
Wiryawan, Ainun Pujo
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Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Engineering Environmental Science Mechanical Engineering Transportation

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P, Pemetaan Pemetaan Jalur Pipa Bawah Laut Di Wilayah Perairan Pulau Pabelokan, Kepulauan Seribu Menggunakan Data Side Scan Sonar Dan Sub Bottom Profiler Monika Maharani, Shang Bhetari; Sasmito, Bandi; Wiryawan, Ainun Pujo
Journal Marine Inside Vol. 6 No. 2 (2024)
Publisher : Politeknik Pelayaran Banten

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62391/ejmi.v6i2.86

Abstract

Sumber daya alam laut sangat penting dalam berbagai aspek kehidupan manusia, terutama sumber daya minyak dan gas (migas) yang berada di dasar laut. Untuk memanfaatkan sumber daya alam tersebut, diperlukan media penyaluran yang tepat. Salah satu media yang digunakan adalah pipa bawah laut, yang berfungsi menyalurkan migas dari bawah laut ke daratan. Keberadaan pipa bawah laut ini berpotensi menimbulkan risiko, terutama di wilayah perairan atau kepulauan padat penduduk. Oleh karena itu, diperlukan monitoring terhadap pipa bawah laut. Metode survei batimetri dengan alat hidroakustik menjadi salah satu metode yang efektif untuk memperoleh informasi terkait posisi dan jalur pipa dasar laut serta jenis dasar laut sebagai bagian dari monitoring. Penelitian ini mengusulkan penggunaan alat hidroakustik Side Scan Sonar (SSS) dan Sub Bottom Profiler (SBP) untuk monitoring pipa bawah laut. Data yang diperoleh dari SSS dan SBP akan diolah menggunakan perangkat lunak SonarWiz 7, dan hasil pengolahan akan dianalisis secara spasial serta diuji menggunakan uji Wilcoxon. Penelitian ini menghasilkan peta jalur dan posisi pipa dasar laut yang akurat.
Multibeam Echosounder Data Analysis Using Object Based Interpretation Criteria for Subsea Pipeline Detection: A Case Study in Bawean Sea, East Java Saleh, Muhammad Rizki; Wiryawan, Ainun Pujo; Fuad, Mochammad Arif Zainul
Civil and Environmental Science Journal (CIVENSE) Vol. 8 No. 1 (2025)
Publisher : Fakultas Teknik Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.civense.2024.008.01.8

Abstract

Subsea pipelines are critical in supporting offshore oil and gas activities, yet they are vulnerable to hazards such as leaks caused by navigation activities. Regular monitoring is essential to reduce associated risks, and multibeam echosounder (MBES) data offer a promising solution for identifying subsea infrastructure. This research presents an object-based interpretation approach for detecting subsea pipelines using MBES data, incorporating interpretation elements such as tone and color, texture, shape, pattern, size, shadow, and site. The research was conducted in the Bawean Sea, East Java, using raw MBES data, vessel offsets, patch test calibration, a sound velocity profiler (SVP), and tidal data. The seafloor topography in the study area is generally flat, ranging from 52.5 to 60.2 meters in depth. Six subsea pipeline objects were identified based on their linear pattern, shallow placement, consistent shape, and spatial context. However, the absence of visible shadow elements—possibly due to sonar resolution, depth, or beam angle limitations—represents a methodological constraint. The study points out the advantages of MBES data combined with object interpretation criteria for non-invasive and efficient subsea pipeline monitoring.
Co-Authors Bandi Sasmito Fuad, Mochammad Arif Zainul Monika Maharani, Shang Bhetari Saleh, Muhammad Rizki