Latest Articles
Small Craft Harbor Survey
Surveying Small-Scale Fishing Harbors: Why the Cheapest Method Is Often the Right One
Under-Ice AUV Survey
Under-Ice Survey: Mapping the Seabed a Vehicle Cannot Surface to Check
Tidal Energy Site Survey
Site Survey for Tidal Stream Turbines: Reading the Current Before You Bolt Down the Foundation
Gamma-Ray Spectrometry
Airborne Gamma-Ray Spectrometry: Mapping Coastal Sediment by What It Radiates, Not What It Reflects
Deep-Sea Mining Survey
Surveying for Deep-Sea Minerals: Why Nodule Fields and Hydrothermal Vents Need Two Different Playbooks
Aquaculture Site Survey
Site Surveys for Offshore Aquaculture: Finding Water That Will Actually Grow Fish
Interferometric Bathymetry
Interferometric Swath Bathymetry: A Different Way to Find the Same Angle
Sub-Bottom Profiler
Parametric, Chirp, Boomer, or Sparker: Choosing a Sub-Bottom Profiler Source
Passive Acoustic Monitoring
Passive Acoustic Monitoring: Listening for Whales Before the Airguns Fire
Ocean Bottom Node Seismic
Ocean Bottom Node Seismic: Watching a Producing Reservoir Change While the Field Is Still Live
Ground-Penetrating Radar
Ground-Penetrating Radar in the Intertidal Zone: The Instrument That Only Works Where Water Doesn't Stay Salty
Distributed Acoustic Sensing
Distributed Acoustic Sensing: Turning a Fiber-Optic Cable Into Thousands of Listening Posts
Synthetic Aperture Sonar
Synthetic Aperture Sonar: Why Resolution No Longer Has to Fade With Range
Marine CSEM
Marine Controlled-Source Electromagnetics: Finding Hydrocarbons by Their Resistivity, Not Their Shape
Doppler Velocity Log
Doppler Velocity Log: How an AUV Knows Its Speed When GPS Cannot Reach It
Survey Career Path
A Career in Hydrographic Survey: From Junior Surveyor to Party Chief
Surveyor Certification
Competency Standards and Certification for Hydrographic Surveyors
Survey Deliverables
Survey Report Deliverables: What a Client Actually Receives and How to Read Them
Multi-Sensor Data Integration
Multi-Sensor Data Integration on a Survey Vessel: One Reference Frame, Many Instruments
Vessel Mobilization
Mobilizing a Survey Vessel: The Logistics Work That Happens Before the Ship Ever Leaves Port
Survey Data QA/QC
Quality Assurance and Quality Control in Hydrographic and Geophysical Survey Data
ROV Inspection
ROV Inspection: The Practical Workhorse of Offshore Asset Integrity
Diver vs ROV
Divers vs. ROVs: When Underwater Work Still Needs a Human in the Water
AUV Mission Planning
AUV Mission Planning: Budgeting Battery, Range, and Communication Before the Vehicle Ever Leaves the Deck
Sea Level Rise
Long-Term Tide Gauge Monitoring: Why a Sea Level Trend Isn't What It Looks Like
Turbidity & Water Quality
Turbidity in Coastal Survey: The Practical Number That Decides Whether Lidar Will Even Work
Coral Reef Mapping
Mapping Coral Reefs With Acoustic and Optical Data: Two Senses, Not One
CTD Profiling
CTD Profiling: The Instrument Behind Every Water Column Story
Metocean Design Criteria
Wave and Current Modeling for Offshore Structure Design: What the Draupner Wave Changed
Metocean Buoy Data
Metocean Buoys: Why the Ocean Needs a Live Feed, Not Just a Snapshot
Environmental Baseline Survey
Environmental Baseline Survey: The Other Data Set Every Offshore Project Needs
Pockmark Detection
Pockmarks and Gas Seepage: Reading the Seafloor's Own Warning Signs
Transboundary Pipeline Geohazard
Geohazard Survey for Transboundary Pipelines: One Route, Multiple Jurisdictions
Seismic Refraction
Seismic Refraction Survey: Reading Bedrock Depth Before You Design the Foundation
Electrical Resistivity Tomography
Electrical Resistivity Tomography: Mapping the Seabed With Current Instead of Sound
Benthic Habitat Mapping
Benthic Habitat Mapping: Turning Backscatter and Ground-Truth Into a Seafloor Ecosystem Map
UXO Survey
UXO Survey at Offshore Wind Farms: Finding What the War Left Behind
Cable Route Survey
Submarine Telecommunications Cable Route Survey: From Desktop Study to Burial Assessment
Cable Burial Risk Assessment
Cable Burial Risk Assessment: Why Deeper Isn't Always the Answer
Maritime Boundaries
Maritime Boundaries and the Exclusive Economic Zone: How Survey Data Draws the Line
Marine Survey Technology
Port and Channel Hydrographic Survey
Marine Survey Technology
Two Shipwrecks, Two Lessons: How a Maritime Archaeological Survey Actually Gets Done
Marine Survey Technology
Multichannel Seismic Reflection in Practice: The Coelacanth Discovery in the Gulf of Mexico
Marine Survey Technology
The Theory Behind Satellite-Derived Bathymetry: How Light Becomes Depth
Marine Survey Technology
Marine Geotechnical Investigation: A Case Study in CPT and Vibrocore Sampling for Offshore Wind Foundations
Marine Survey Technology
Airborne Lidar Bathymetry vs. Acoustic Echosounders: Choosing the Right Way to Measure Depth
Marine Survey Technology
Acoustic Backscatter Classification: Mapping Seafloor Sediment From the Strength of an Echo
Marine Survey Technology
Autonomous and Unmanned Survey Platforms: Taking the Crew Off the Boat
Marine Survey Technology
Dredging Survey and Volume Calculation
Marine Survey Technology
RTK-Tide as an Alternative to the Tide Gauge in Depth Reduction
Marine Survey Technology
Acoustic Doppler Current Profiler: Measuring Currents Instead of Depth
Marine Survey Technology
IHO S-100: The Future of Hydrographic Data Standards
Marine Survey Fundamentals
Vertical Datum and Tidal Correction in Hydrographic Survey
Marine Survey Technology
Choosing Between MBES, Airborne Lidar, and Satellite Imagery for Coastal Mapping
Marine Survey Technology
Marine Gravimetry: How Surveyors Measure Gravity From a Moving Ship
Marine Survey Fundamentals
Sound Velocity in Bathymetry: The Number Every Depth Measurement Depends On
Marine Survey Technology
Calibration and Patch Test for Multibeam Echosounders
Marine Survey Technology
The Role of the Marine Geophysicist: Turning Signal Into Decisions
Marine Survey Technology
Inland Bathymetric Survey: Rivers, Lakes, and Reservoirs
Marine Survey Technology
Positioning Systems in Marine Survey: From GPS Satellites to Seafloor Transponders
Marine Survey Technology
Geohazards in Marine Construction: Why Survey Comes Before Engineering
Marine Survey Technology
Applications of Marine Magnetometers and Gradiometers in Underwater Surveys
Marine Survey Technology
Applications of Single-Beam Echosounders in Bathymetric Surveys
Marine Survey Technology
Applications of Multibeam Echosounders in Bathymetric Surveys
Marine Survey Technology
Applications of Sub-Bottom Profilers in Underwater Surveys
Marine Survey Technology