Explore the underwater world and gain hands-on experience with cutting-edge hydrographic tools. The Multi-Beam Survey Course from Geo-ICT gives you practical training in one of the most advanced seabed mapping techniques. In just four days, you’ll build a solid foundation in multi-beam sonar and develop the skills to conduct accurate, high-quality marine surveys—whether you're new to hydrography or expanding your geospatial expertise.
Multi-Beam Survey
GeodesyGeodesy
Introduction to Hydrography
In hydrography—the science of measuring and mapping underwater environments—precision is everything. Whether it’s for maritime safety, offshore construction, environmental research, or coastal planning, understanding the seafloor is essential. As a result, multi-beam survey technology has become the go-to method for capturing high-resolution, 3D images of seabeds, riverbeds, and lakebeds.
Unlike single-beam sonar, which scans a narrow line beneath the vessel, multi-beam systems use hundreds of sound beams at once. This allows surveyors to capture wide, detailed swaths of data in a single pass. Consequently, they can measure depth, identify underwater features, and build detailed digital maps. The data is essential for nautical chart creation, seafloor condition assessments, and even the discovery of archaeological sites and shipwrecks.
As climate change, coastal development, and marine exploration accelerate, so does the need for professionals skilled in hydrographic data collection and analysis. Today, environmental agencies, offshore companies, research institutions, and government bodies all rely on experts who understand both the theory behind sonar systems and the technical know-how to operate them in real-world conditions. For that reason, this course was designed to give you the practical and technical skills needed to succeed in this growing industry.
What will you learn
This course provides a complete introduction to the tools, workflows, and techniques used in multi-beam hydrography. To begin with, you’ll learn how to operate a multi-beam echosounder system, manage onboard calibrations, and maintain data quality from start to finish. In addition, you’ll gain experience planning surveys and producing accurate bathymetric maps.
Along the way, you’ll also discover how positioning systems, motion sensors, and specialized software integrate into a reliable workflow for marine data collection. By the end, you’ll understand not just how the tools work — but how to apply them effectively in field operations.
Why choose this course
At Geo-ICT, we don’t just teach tools — we help you build practical, job-ready skills. From day one, you’ll train with real equipment, gain hands-on experience, and work through scenarios that mirror real-world hydrographic projects.
Here’s what makes this course stand out:
- Hands-on training with industry-standard tools, workflows, and datasets
- Expert instruction from professionals in hydrography and geospatial analysis
- Career-focused content aligned with roles in marine data, GIS, and environmental monitoring
- Access to modern technology, including multi-beam sonar and advanced processing software
In short, this course equips you with the knowledge, tools, and confidence to excel in today’s hydrographic industry.
Course structure
Day 1
You’ll kick off the course with the basics of multi-beam sonar — what it is, how it works, and why it’s become a critical tool in modern hydrography. Next, you’ll explore sonar technology, geodesy, and how client expectations influence survey design. After that, you’ll examine key equipment types, major manufacturers, and how to choose the right tools for different jobs. Finally, the day ends with an overview of survey software workflows and a first look at managing data quality during acquisition.
Day 2
The second day is all about bringing the survey vessel to life. To begin with, you’ll learn how to outfit the vessel with essential components, including GNSS systems, gyros, motion sensors, and sonar. Next, you’ll walk through vessel mobilization — connecting, aligning, and configuring your equipment. After that, you’ll dive into calibration and time synchronization techniques that ensure your data is accurate from the start. In short, the day focuses on building a solid technical foundation for reliable data acquisition.
Day 3
With your setup ready, you’ll move into configuring and testing your systems. You’ll learn how to build a working setup in your survey software, interface it with hardware, and perform key system checks. You’ll also work with land-based methods like tide gauge reading and control point surveying to support accurate vertical referencing. The day ends with full system calibrations to ensure every component is survey-ready.
Day 4
On the final day, it all comes together. You’ll practice collecting real-time data using a simulator or actual recorded survey data, applying best practices throughout. As you gather data, you’ll monitor quality, troubleshoot issues, and use QA/QC tools to verify accuracy. Finally, you’ll clean and process the data using professional workflows, generate usable maps, and learn how to write a clear, effective survey report that meets client requirements.
Learning Outcomes
- Ability to operate multi-beam sonar systems for seabed and underwater mapping
- Skills to calibrate and troubleshoot onboard sensors and systems
- Competence in survey vessel setup and geospatial data acquisition workflows
- Proficiency in using hydrographic software for data processing and visualization
- Understanding of quality assurance processes and how to prepare survey deliverables
- Confidence to work on or lead hydrographic survey projects in professional contexts
More Information?
Do you have questions about the course content? Not sure if the course aligns with your learning objectives? Or would you prefer a private session or in-company training? We’re happy to assist—feel free to get in touch.
Frequently Asked Questions about Multi Beam Survey
The Multi Beam Survey course is a specialized training program focused on teaching participants how to conduct hydrographic surveys using multi-beam echosounder systems. Multi-beam echosounders are advanced sonar technologies that provide detailed and accurate 3D maps of underwater surfaces, making them crucial for a variety of applications such as maritime navigation, underwater research, environmental studies, and offshore construction projects.
The Multi Beam Survey course is designed for professionals and individuals who are involved in or interested in hydrographic surveying, geoinformation, and underwater mapping. This includes:
- Hydrographers seeking to enhance their knowledge and skills in multi-beam echosounder systems.
- Marine Surveyors who require expertise in conducting underwater surveys for various maritime projects.
- Geospatial and GIS Professionals looking to expand their skill set in bathymetric data collection and processing.
- Environmental Scientists who work on projects related to oceanography, marine biology, or coastal zone management.
- Offshore Engineers involved in construction projects, oil and gas exploration, or infrastructure development in marine environments.
- Archaeologists specializing in underwater or maritime archaeology.
- Maritime and Coastal Management Authorities responsible for ensuring safe navigation and managing marine resources.
This course is also suitable for anyone with a general interest in the technology and techniques used in hydrographic surveys and underwater mapping.