MetroSea
Complete survey and metrology systems for offshore and maritime operations
Survey and Metrology for the Field
MetroSea helps teams collect, check, visualise, and report measurement data during real operations. It is a complete survey and metrology system that can include software, calibrated sensors, positioning equipment, field enclosures, RTK infrastructure, integration, and commissioning.
- Real-time multi-sensor data acquisition and fusion
- Offshore positioning, alignment, and vessel and structural deformation monitoring
- Automated quality checks, tolerance monitoring, and reporting
- Subsea metrology and metocean monitoring alongside GNSS, laser trackers, total stations, and IMUs
Survey and Metrology Work
MetroSea supports practical measurement workflows delivered as end-to-end services, licensed software, integrated hardware, or project-specific tooling.
Dimensional Control Survey
As-built surveys and dimensional control for offshore structures. Covers FPSO loadout and mooring alignments, pipeline and riser geometry, jacket and topside mating, and quayside checks before offshore campaigns.
Offshore Positioning Survey
Vessel-installed positioning systems using GNSS, LiDAR, and total stations integrated with motion reference units for real-time 6-DOF positioning and alignment data.
Vessel and Structural Deformation Monitoring
Hull girder bending and twist, deck and crane pedestal deflection, jack-up leg and preload loads, and seafastening loads in transit. Strain gauges, fibre-optic (FBG) strain arrays, accelerometers, inclinometers, and multi-antenna GNSS with motion sensors, with live dashboards, configurable alerts, and automated reporting. Designed to support class hull-monitoring requirements.
Subsea Metrology and Precise Positioning
Spool and jumper metrology, hub-to-hub distance and attitude, structure landing on target, and pile verticality during installation. LBL and sparse-LBL arrays, USBL, INS with Doppler velocity log, pressure-depth sensors, and subsea laser and sonar scanning, tied to surface GNSS for a global reference.
Metocean Monitoring
Wind, waves, current, water level, and visibility for weather-window decisions and operational limits. Directional wave buoys, wave radar, ADCP current profilers, ultrasonic anemometers, wind LiDAR, and tide gauges, with data feeding simulation scenarios and analytics.
Offshore RTK Base Station Deployment
Deployment and operation of offshore RTK base stations and supporting GNSS infrastructure for reliable positioning, alignment, and survey reference during campaigns.
USV-Based Survey
Uncrewed surface vehicle survey operations for restricted or hazardous areas, with USV and AUV data integrated into MetroSea processing and reporting.
Data Management and Reporting
End-to-end data processing, quality control, and reporting. Survey reports, measurement certificates, CAD exports, and digital deliverables tailored to project requirements.
Integrated Sensors, Hardware, and Software
MetroSea connects a wide range of sensors, positioning hardware, field systems, and deliverables through one software environment.
Sensors We Integrate
Positioning and Motion
- GNSS receivers (RTK, PPP, DGNSS) and multi-antenna heading
- Total stations, laser trackers, and robotic prism tracking
- IMU / MRU motion sensors and gyrocompasses
- LiDAR and 3D laser scanners
Deformation and Load
- Strain gauges (foil and vibrating wire)
- Fibre Bragg grating (FBG) strain and temperature arrays
- Accelerometers and inclinometers
- Displacement transducers (LVDT, draw-wire)
- Load cells and load pins
- Draft, tank level, and pressure sensors
Subsea
- LBL / sparse-LBL, SBL, and USBL acoustic positioning
- INS with Doppler velocity log (DVL)
- Quartz pressure and depth sensors
- Sound velocity probes and CTD
- Subsea laser scanners and photogrammetry
- Multibeam, imaging, and profiling sonar
- Subsea inclinometers and attitude sensors
Metocean
- Directional wave buoys
- X-band wave radar and downward-looking radar or laser rangefinders
- ADCP current profilers (vessel- and seabed-mounted)
- Ultrasonic anemometers and wind LiDAR
- Tide gauges (radar and pressure)
- Barometric, temperature, humidity, visibility, and turbidity sensors
Software Capabilities
- Real-time data acquisition and fusion engine
- Live 3D positioning and alignment visualisation
- Automated tolerance monitoring and alerting
- Survey data management and version control
- Automated report and certificate generation
- CAD/BIM export (DXF, IFC, CSV)
- Secure cloud data delivery and archiving
- USV / AUV data integration
Measurement That Feeds the Rest of the Operation
MetroSea writes measured real-world state onto the shared MimeSeas digital twin rather than into an isolated survey deliverable. Position, alignment, and tolerance data becomes available to the rest of the platform as it is captured, which is what makes measurement-driven control practical.
- Control logic can read live measured geometry and loads directly, as in pipelay tensioner control, installation alignment, and structural load monitoring.
- Analytics and reporting work on the same validated measurements the field crew saw, so production figures and survey deliverables stay consistent.
- Survey data still leaves as conventional reports, certificates, and CAD or BIM exports. Feeding the twin adds a path; it does not replace your deliverables.
- Metocean measurements feed SimSea environments and weather-window planning, and all MetroSea data reaches NoeSea through the platform historian.
Service Models
End-to-End Survey Services
End-to-end survey and metrology delivery: equipment, personnel, processing, reporting, offshore RTK base station deployment, and integrated metrology Rittal boxes. We mobilise to your site with calibrated systems and deliver certified results.
Software Licensing
License MetroSea software for your in-house survey teams, with optional sensor packages, field hardware, integration support, training, and software maintenance.
Specialist Support
Embedded survey engineers and MetroSea system operators for your offshore campaigns. Available short- or long-term.
Engineering Consulting
Measurement system design, survey planning, data processing methodology review, and technical audits of existing metrology programs.