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Tutorials

TUTORIAL 1
Mapping the Seafloor with MB-System, overview and practice

Speaker: Christian Ferreira
Institution: Marum, Germany
Date: October 9th, 2013, 11h-18h (lunch break at 14h)

Abstract:MB-System (http://www.mbari.org/data/mbsystem/) is an open source software package consisting of programs which manipulate, process, list, or display swath sonar bathymetry, amplitude, and sidescan data. The swath mapping sonar data may derive from multibeam sonars, interferometry sonars, or sidescan sonars. This software is distributed freely (and for free) in the form of source code for Unix-based platforms using the GNU Public License (GPL) version 3. To give an overview about it, during the next 6 hours we'll explore the tools build-in MB-System and their capabilities for: data querying, 2D and 3D data editing, survey planing, grid ding, map making, calibration. These topics will be seen inside already existing workflows used by MBARI (US) and MARUM (Germany) for processing multibeam data (bathymetry and sidescan) from ship-mounted and AUV-mounted echosounders mainly from Kongsberg and Reson. And we'll finish talking about the on-going and future projects for MB-System's development. The tutorial will start with a short theoretical session and the rest will be practice. All the activities will be done in a room with computers for the participants. Participants following the practical exercises should have some knowledge about Linux/Mac terminal or GMT. Participants without this knowledge can participate also working in groups.


CV: Christian dos Santos Ferreira is an acoustic specialist working with echosounders and bathymetric mapping since 2001 and with AUV mapping since 2009. He has participated in over nearly 20 expeditions logging almost two full years at Sea. His maps have been published in various scientific journals and popular publications such as National Geographic Atlas. In 2004, he developed a Linux distribution called Poseidon Linux (derived from Debian/Ubuntu) aiming to help other specialists on the topic of mapping/bathymetry, and other applications. Christian currently also serves as the main scientific inspector for the governmental agency called "Leitstelle Deutsche Forschungsschiffe" that oversees the German research fleet (R/V Meteor, R/V Merian and R/V Sonne) in controlling the data quality of the installed multibeam systems in addition to providing recommendations and suggestions for system upgrades. Christian is also one of the maintainers of the open source software package MB-System used by scientist and companies around the world for multibeam data processing. This latest effort earned him an invitation to join one of the IHO/GEBCO committees for the publication called "IHO-IOC GEBCO Cook Book" (referenced as: IHO Publication B-11). He is currently co-authoring a chapter for the Cookbook with Dave Caress of MBARI on the processing of multibeam data using the MB-System.


  • Contents:

    • 1) Intro about what is MB-System
    • 2) MB-System structure and auxiliary files
    • 3) Basic plots
    • 4) Extracting information and metadata
    • 5) Corrections (backscatter, sound velocity, tide and lever arms)
    • 6) Cleaning multibeam data (automatic and manual)
    • 7) Cleaning navigation (manual)
    • 8) Creating processed files
    • 9) Gridding and producing final maps


  • Extras:

    • a) Survey planning (ship and AUV)
    • b) Navigation adjustment/correction for AUVs