The coregistering and fusing for multibeam echosounder sonar and side scan sonar data

2015 ◽  
pp. 35-40
Keyword(s):  
Side Scan Sonar ◽  
Multibeam Echosounder

scholarly journals STUDI APLIKASI MULTIBEAM ECHOSOUNDER DAN SIDE SCAN SONAR UNTUK MENDETEKSI FREE SPAN PADA SALURAN PIPA BAWAH LAUT

Geoid ◽  
2014 ◽  
Vol 10 (1) ◽  
pp. 65
Author(s):  
I Made Dwifa Satya Nugraha ◽  
Yuwono Yuwono
Keyword(s):  
Side Scan Sonar ◽  
Multibeam Echosounder

scholarly journals Identifikasi Hazard dari Hasil Data Free Span pada Jalur Pipa Bawah Laut Lapangan Bekapai Menggunakan Data Multibeam Echosounder dan Side Scan Sonar

2019 ◽  
Vol 2018 (1) ◽  
Author(s):  
Muhammad Biana Ravenska ◽  
Ni Made Rai Ratih Cahya Perbani
Keyword(s):  
Coming Out ◽  
Research Area ◽  
Hazard Identification ◽  
Oil Fields ◽  
Side Scan Sonar ◽  
Multibeam Echosounder ◽  
Operation Process ◽  
Oil And Natural Gas ◽  
Safe Condition ◽  
Subsea Pipelines

ABSTRAKLapangan Bekapai merupakan salah satu lapangan minyak yang memproduksi dan mendistribusikan minyak dan gas alam lewat pipa bawah laut. Untuk itu perlu dilakukan inspeksi secara berkala untuk meminimalkan terjadinya hazard baik yang berasal dari proses instalasi maupun dari proses operasi, di antaranya berupa free span. Penelitian ini menggunakan data multibeam echosounder (MBES) untuk mendapatkan data panjang dan posisi free span, sedangkan data side scan sonar (SSS) untuk interpretasi objek pipa dan perkiraan tinggi free span. Profil yang dibangun dari data MBES digunakan untuk memastikan adanya cekungan pada lokasi free span yang terdeteksi. Kriteria identifikasi hazard berupa free span pada jalur pipa bawah laut menggunakan DNV RP F-105 dengan panjang dan tinggi maksimum yang diperbolehkan adalah 14 meter dan 0,6 meter. Free span maksimum yang terdeteksi di lokasi penelitian memiliki panjang 9,2 meter dan tinggi 0,24 meter, yang masih dikategorikan aman atau tidak terjadi hazard pada pipa bawah laut di lokasi penelitian.Kata kunci: free span, multibeam echosounder, side scan sonar ABSTRACTBekapai Field has been known as one of the oil fields which produce and transport oil and natural gas through the subsea pipelines. It becomes so important to inspect periodically for minimizing the coming out of hazards, either during installation or operation process. One of the hazards is a free span. This research uses multibeam echosounder (MBES) data to specify the length and the position of free span, while side scan sonar (SSS) data is used to interpret the object of pipeline and to estimate the height of free span. Profiles that are builded from MBES data are used to ascertain the existence of a basin under the detected free span. DNV RP F-105 as the criteria of hazard identification for free span requires the maximum of length and height be allowed are 14 meters and 0.16 meters. The maximum free span detected at the research area has 9.2 meters length and 0.24 meters height, thus it can be stated as a safe condition category or there is no subsea pipelines hazards at the research area.Keywords: free span, multibeam echosounder, side scan sonar

Small-scale variation within a Modiolus modiolus (Mollusca: Bivalvia) reef in the Irish Sea: I. Seabed mapping and reef morphology

2008 ◽  
Vol 88 (1) ◽  
pp. 133-141 ◽  
Author(s):  
C. Lindenbaum ◽  
J.D. Bennell ◽  
E.I.S. Rees ◽  
D. McClean ◽  
W. Cook ◽  
...  
Keyword(s):  
Irish Sea ◽  
Small Scale ◽  
Acoustic Characteristics ◽  
Side Scan Sonar ◽  
Multibeam Echosounder ◽  
North West ◽  
Modiolus Modiolus ◽  
Distinctive Morphology ◽  
Seabed Mapping ◽  
The Irish Sea

Surveys by digital side-scan sonar, RoxAnnTM acoustic ground discrimination systems, multibeam echosounder and a sub-bottom profiling system showed that a Modiolus modiolus reef, in the Irish Sea off Pen Llŷn, north-west Wales, had a distinctive morphology and acoustic characteristics. The extent of the reef could therefore be determined and the benthic structure reliably mapped. The biogenic reef is in an area with moderately strong tidal currents and overlays lag gravel and cobbles with patchy sand veneers. The mussels form an undulating surface, orientated perpendicular to the current, with an average wavelength of 11.7 m and amplitude of 0.24 m that is significantly different from the surrounding seabed. Reef deposits reach a thickness of 1 m on top of the underlying lag gravels. The characteristic reef surface morphology helps distinguish the reef from the surrounding seabed on side-scan sonar and multibeam echosounder records and the undulations create the spatial complexity that influences the small-scale distribution of the associated epifauna, and infauna, reported in papers II and III of this series. The M. modiolus reef was recorded in the same location 40 y ago and has probably persisted there for over 150 y. Monitoring implications are discussed.

scholarly journals Subaqueous geomorphology: options, tasks, needs

2019 ◽  
Vol 16 (1) ◽  
pp. 89-97
Author(s):  
Stanisław Rudowski ◽  
Radosław Wróblewski ◽  
Janusz Dworniczak ◽  
Kazimierz Szefler ◽  
Benedykt Hac ◽  
...  
Keyword(s):  
Land Surface ◽  
Digital Terrain Model ◽  
Side Scan Sonar ◽  
Multibeam Echosounder ◽  
Seismic Profiling ◽  
Terrain Model ◽  
Non Invasive ◽  
Digital Terrain ◽  
Surface Survey ◽  
Echo Sounder

Abstract The purpose of the paper is to present the potentialities of current non-invasive methods for bottom surveys, including cartometric presentation of its relief and structure in both marine and inland reservoirs. The paper presents examples of results obtained in the Maritime Institute in Gdańsk during surveys carried out at the bottom of seas, lakes and rivers with the use of the same apparatus: primarily, a multibeam echosounder (MBES) to obtain a digital terrain model (DTM); a side-scan sonar (SSS) to obtain a general image of the nature of the bottom (its “roughness”); and seismic profiling (sub-bottom profiler, sediment echo sounder [SES]) to recognise the structure of the bottom. The obtained results constitute a necessary basis for carrying out further specialist surveys (non-invasive or invasive) when needed. Current bottom survey options that use MBES, SSS and SES may be treated as subaqueous equivalents of the subaerial potentialities of a land surface survey using LiDaR and GPR (Ground Penetration Radar).

scholarly journals Testing Side-Scan Sonar and Multibeam Echosounder to Study Black Coral Gardens: A Case Study from Macaronesia

2020 ◽  
Vol 12 (19) ◽  
pp. 3244
Author(s):  
Karolina Czechowska ◽  
Peter Feldens ◽  
Fernando Tuya ◽  
Marcial Cosme de Esteban ◽  
Fernando Espino ◽  
...  
Keyword(s):  
Habitat Characteristics ◽  
Side Scan Sonar ◽  
Multibeam Echosounder ◽  
Marine Communities ◽  
Bathymetric Data ◽  
Black Coral ◽  
Black Corals ◽  
Distribution And Ecology ◽  
Ground Truthing

Black corals (order Antipatharia) are important components of mesophotic and deep-water marine communities, but due to their inaccessibility, there is limited knowledge about the basic aspects of their distribution and ecology. The aim of this study was to test methodologies to map and study colonies of a branched antipatharian species, Antipathella wollastoni, in the Canary Islands (Spain). Acoustic tools, side-scan sonar (SSS), and a multibeam echosounder (MBES), coupled with ground-truthing video surveys, were used to determine the habitat characteristics of Antipathella wollastoni. Below 40 m depth, colonies of increasing height (up to 1.3 m) and abundance (up to 10 colonies/m2) were observed, particularly on steep and current-facing slopes on rocky substrates. However, coral presence was not directly imaged on backscatter mosaics and bathymetric data. To improve this situation, promising initial attempts of detecting Antipathella wollastoni by utilizing the MBES water column scatter in an interval for 0.75 m to 1 m above the seafloor are reported.

scholarly journals Analisis Nilai Hambur Balik pada Kapal Karam (Wreck) Menggunakan Data Multibeam Echosounder di Perairan Belawan

2018 ◽  
Vol 4 (1) ◽  
pp. 51-67
Author(s):  
Brama Setya Indramawan ◽  
Anang Prasetia Adi ◽  
Eka Djunarsjah ◽  
Wahyu W. Pandoe
Keyword(s):  
Response Analysis ◽  
Analysis Tool ◽  
Side Scan Sonar ◽  
Multibeam Echosounder ◽  
Sediment Analysis ◽  
Angular Response

Wreck (kapal karam) sangat membahayakan bagi pelayaran terutama di alur pelayaran, maka menjadi penting untuk dapat mengetahui posisi, dimensi dan karaktersik wreck tersebut. Pendeteksian wreck selama ini menggunakan magnetometer dan side scan sonar, padahal dengan kemampuan Multibeam Echosounder (MBES) saat ini pendeteksian itu dapat dilakukan oleh MBES, karena mampu menghasilkan data batimetri dan data hambur balik dari material dasar laut. Penelitian ini memanfaatkan data batimetri MBES untuk mendapatkan nilai kedalaman dan nilai intensitas dari wreck. Dari nilai intensitas inilah dapat diketahui material badan kapal yang tenggelam. Data yang digunakan adalah data MBES Kongsberg EM2040C hasil Survei Pushidrosal tahun 2016 di perairan Belawan. Pengolahan data menggunakan software Caris Hips and Ships 9.0 dengan cara membuat CUBE Surface untuk mendapatkan nilai kedalaman dan estimasi dimensi (panjang dan lebar) dari wreck. Untuk mendapatkan nilai hambur balik menggunakan metode Angular Response Analysis (ARA) dan Sediment Analysis Tool (SAT). Hasil penelitian ini diperoleh nilai intensitas dari kapal karam berkisar -9,7 sampai -3,02 dB pada wreck bermaterial besi dan -27,3 sampai -21,5 pada wreck bermaterial kayu dengan nilai koefisien refleksi 0.928 dan 0.414

scholarly journals Pengolahan Data Bathymetry dan Side Scan Sonar System Edgetech 6205 Untuk Pemetaan Kondisi Permukaan Dasar Laut (Studi Kasus Perairan Tanjungkubu, Kepulauan Riau)

2017 ◽  
Vol 3 (1) ◽  
pp. 1-10
Author(s):  
Darminto Darminto ◽  
Dikdik S. Mulyadi ◽  
Agung Prasetyo ◽  
Johar Setiyadi
Keyword(s):  
Side Scan Sonar ◽  
Multibeam Echosounder ◽  
Sonar System

Pemetaan kondisi permukaan dasar laut di daerah-daerah kritis seperti alur masuk pelabuhan, tempat berlabuh kapal-kapal, jalur pipa serta kabel bawah laut sering digunakan perpaduan beberapa alat survei yang berbeda seperti kombinasi penggunaan alat survei batimetri dan Side Scan Sonar (SSS) secara terpisah maupun dalam satu sounding boat. Dengan kemajuan teknologi peralatan survei batimetri, kini telah hadir peralatan survei Edgetech 6205 yang dapat menghasilkan output dua data dalam proses akuisisinya yaitu data Multibeam Echosounder (MBES) dan SSS. Proses akuisisinya telah dilaksanakan oleh tim survei PT. Pageo Utama di Perairan Tanjungkubu, Kepulauan Riau. Tulisan ini membahas pengolahan data MBES dan SSS Edgetech 6205. Hasil pengolahan data MBES diperoleh data angka kedalaman, image seabed surface (*.tiff) dan objek dasar laut yang belum diketahui secara pasti. Sedangkan hasil pengolahan data SSS diperoleh citra (foto) fitur dasar laut (*.tiff) . Sapuan data MBES dan sapuan data SSS sangat representatif sehingga objek temuan hasil pengolahan data MBES dapat diverifikasi dan didigitasi untuk mendapatkan data posisi dari fitur dasar laut yang dianggap benar. Dari dua data tersebut diperoleh informasi yang cukup akurat tentang kondisi permukaan dasar laut yang berupa fitur dasar laut, angka kedalaman dan kontur.

Archive of Side Scan Sonar and Swath Bathymetry Data collected during USGS Cruise 10CCT02 Offshore of Petit Bois Island Including Petit Bois Pass, Gulf Islands National Seashore, Mississippi, March 2010

Data Series ◽  
10.3133/ds577 ◽  
2011 ◽  
Author(s):  
William R. Pfeiffer ◽  
James G. Flocks ◽  
Nancy T. DeWitt ◽  
Arnell S. Forde ◽  
Kyle Kelso ◽  
...  
Keyword(s):  
Side Scan Sonar ◽  
Swath Bathymetry ◽  
Gulf Islands ◽  
National Seashore

Indian Rocks Beach side-scan sonar mosaic map

2000 ◽  
Author(s):  
S.E. Harrison ◽  
S.D. Locker ◽  
A.C. Hine ◽  
D.C. Twichell
Keyword(s):  
Side Scan Sonar ◽  
Mosaic Map
Sign in / Sign up

Export Citation Format

Share Document