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LAND & ENVIROMENTAL

SURVEY SUPPORT

Land and enviromental surveys provide accurate positioning control and baseline data to support engineering marine infrastructure, and environmental permitting processes. Oseana delivers integrated terrestrial and marine survey data, including physical oceanographic measurements, seabed characterization, and environmental monitoring to support impact asessments and AMDAL requirements.

main equipment

  • GNSS RTK
  • Total Station
  • Auto Level
  • CTD
  • Water Sampler
  • Sediment Grab Sampler
  • GPS & Field Instruments
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underwater

SURVEY Service

Underwater survey services provide visual and condition assessments of submerged structures, pipelines, cables, and seabed features to support asset integrity and operational safety. Oseana utilizes diver-based and remotely operated systems to conduct inspections in accordance with project and safety requiretments.

main equipment

  • ROV
  • Underwater Camera
  • Diver-based Inspection Tools
  • Imaging Sonar (if required)

aerial

SURVEY Service

Aerial survey services deliver rapid, high-resolution spatial data acquisition for mapping, monitoring, and inspection across marine, coastal, and terrestrial environments. Oseana deploys UAV/drone-based platforms operated by certified pilots to support efficient data collection with high positional accuracy, enhanced safety, and reduced operational costs.

main equipment

  • UAV / Drone Platforms
  • High-Resolution RGB Camera
  • RTK / PPK GNSS System
  • Multispectral Camera (if required)
  •  (if required)
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SPECIALIZATION

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HYDROGRAPHIC

SURVEY

Hydrographic surveys provide accurate seabed and water depth measurements referenced to Mean Sea Level (MSL) to support navigation safety, part development, dredging activities, and offshore construction. Oseana conducts hydrographic surveys in offshore, nearshore, river, and lake environments using calibrated systems to support bathymetric mapping, volume calculation, and pre post construction assessments.

main equipment

  •  Multibeam Echosounder (MBES)
  • Single Beam Echosounder (SBES)
  • GNSS RTK / DPGS
  • Motion Reference Unit (MRU)
  • Tide Gauge
  • Survey Vessel / Small Craft
Marine Geotechnical Survey

MARINE GEOTECHNICAL

SURVEY

Marine geotechnical surveys provide near-surface seabed and soil data to support foundation design and offshore engineering works. Oseana conducts geotechnical investigations to assess soil characteristics, bearing capacity, and construction feasibility for offshore structures, jetties, and subsea installations.

main equipment

  • CPT / CPTU System
  • Vibrocorer
  • Grab Sampler
  • Borehole Equipment (through partners)

MARINE GEOPHYSICAL

SURVEY

Marine geophysical surveys investigate seabed and shallow to intermediate subsurface layers to support offshore development, cable and pipeline routing, and hazard identification. Oseana applies appropriate geophysical methods to identify seabed objects, sediment layers, and potential geohazards, producing accurate data to support engineering design and safe marine operations.

main equipment

  • Side Scan Sonar (SSS)
  • Sub-Bottom Profiler (SBP)
  • Boomer / Sparkler System (as required)
  • Magnetometer
  •  GNSS Positioning System
Hydrographic Survey
Topographic & Coastline Survey

topographic & coastal

SURVEY

Topographic and coastal surveys integrate land and nearshore measurements to map shoreline morphology and coastal elevation in support of coastal engineering, reclamation, adn shoreline management. Oseana provides accurate spatial data for planning and monitoring coastal developments, ensuring continuity between onshore and offshore design.

main equipment

  • GNSS RTK
  • Total Station
  • UAV / Drone

MET-OCEAN

SURVEY

Met-ocean surveys collect oceanographic and meteorological data to support offshore structure design, operational planning, risk assessment, and environmental analysis. Oseana measures currents, waves, tides, and water column characteristics to provide representative data for engineering design and offshore operations.

main equipment

  • Accoustic Doppler Current Profiler (ADCP)
  • CTD (Conductivity, Temperature, Depth)
  • Wave Sensor / Wave Buoy
  • Tide Gauge
  •  Automatic Weather Station (AWS)
Met - Ocean Survey
Unexploded Ordnance Survey

UXO

SURVEY

UXO surveys identify and map potential unexploded ordnance remnants from historical military activites to ensure safety prior to offshore construction, dredging, or seabed intervention works. This service is critical in minimizing safety risks during marine operations.

main equipment

  • Magnetometer
  • Side Scan Sonar
  • ROV / Diver Support (if required)
  • Accoustic Positioning System (USBL)