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Hendra Kurnia Febriawan
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Chemistry Computer Science & IT Earth & Planetary Sciences Environmental Science Physics

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SEABED TOPOGRAPHY MAPPING IN SANGIHE TALAUD WATERS USING MULTIBEAM ECHOSOUNDER Dwi Haryanto; Muhamad Irfan; Taufan Wiguna; Hendra Kurnia Febriawan
Oseanika Vol. 1 No. 1 (2020): Oseanika: Jurnal Riset dan Rekayasa Kelautan - Juni 2020
Publisher : Laboratory for Marine Survey Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/oseanika.v1i1.4054

Abstract

The application of multibeam echosounder for seabed topography has been developing rapidly. Multibeam echosounder is a very efficient way to get a wide seabed topography coverage for each ping, so it can produce high-resolution seabed topography maps. These maps can be used as a reference for further investigation or exploration, for example geological studies, marine habitats and others. RV Baruna Jaya IV is operated by Laboratory for Marine Survey Technology – BPPT that have been hull mounted equipped a Germany technology multibeam echosunder Seabeam 1050D system. The Seabeam 1050D allow to sweep measuring the seabed topography using 126 beams simultaneously from port to starboard sites. R.V. Baruna Jaya IV and the Okeanos Explorer of NOAA have been conducted joint Indonesia - U.S. Expedition to Sangihe Talaud waters (INDEX SATAL) in the north area of the North Sulawesi Province during July - August, 2010. Seabed topography of less than 2000 metres were recorded by Seabeam 1050D system, the area of larger depths of 2000 metres to 6000 metres recorded by Simrad EM-302 from Okeanos Explorer. The seabed topography in Sangihe Talaud waters has a varied seabed topography. The new discovery that showed on the map is a 1600 m height of seamount, risen up from the depth of 2300m to 710m. Others geological seabed can be identified according to high resolution bathymetry map resulted from this study.Keywords: multibeam echosounder, seabed topography, seamount, Sangihe Talaud
PROSEDUR SURVEI PEMETAAN BAWAH LAUT UNTUK PERENCANAAN PEMASANGAN SISTEM KABEL LAUT INDONESIA CABLE BASE TSUNAMIMETER (INA-CBT) Dwi haryanto; Hendra Kurnia Febriawan; Yudo Haryadi; Rahadian Rahadian; Djunaedi Muljawan
Oseanika Vol. 1 No. 2 (2020): Oseanika: Jurnal Riset dan Rekayasa Kelautan - Desember 2020
Publisher : Laboratory for Marine Survey Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/oseanika.v1i2.4507

Abstract

[Seabed Mapping Prosedure for Indonesia Cable Based Tsunamimeter (Ina-CBT) Installation Planning] Indonesia, which is located in the “Pacific Ring of Fire”, is a potential country for tsunami disaster. BPPT has developed technologies for tsunami early warning system is known as the Indonesia Cable Based Tsunameter (Ina-CBT). In 2020, BPPT will initiate four marine cable route survey in four locations where have a large potential of tsunami, namely: Labuan Bajo segment, Rokatenda segment, Makassar strait segment and the Cilacap - Krui segment. To support this project, marine cable route survey is mandatory to obtain the seabed characteristic along the route. This characteristic is necessary to obtain the suitable submarine cable route and avoid hazards during the installation and maintenance. This paper describes the procedures of Ina-CBT marine cable route survey. These procedures include scope of survey, methods, survey vessel and equipment, data processing, and reporting. It is expected that this paper could serve as reference guide to carry out a high-quality marine cable route survey, which can produce an optimum cable route and suitable cable type for the Ina-CBT development. Keywords: Tsunami, Ina-CBT, survey procedure, seabed mapping, cable route.    
Co-Authors Djunaedi Muljawan Dwi Haryanto Muhamad Irfan Rahadian Rahadian Taufan Wiguna Yudo Haryadi