Practical knowledge for hydrographic and offshore survey professionals.
Browse practical Hydrographic Surveying guides, field workflows, quality-control checks and troubleshooting notes written for real survey operations.
🤔 “Aren’t a Surveyor, Survey Engineer, and Data Processor all the same?” This is one of the most common questions asked by people entering the hydrographic survey industry. The tr
When someone asks, "How do you know a hydrographic survey is accurate? the answer is simple: Because we verify it not because we assume it High-quality survey data doesn't happen b
One question I hear quite often is: "What's the difference between Multibeam Echo Sounder (MBES), Side Scan Sonar (SSS), and Single Beam Echo Sounder (SBES)?" The truth is, there i
The Importance of Sensor Calibration – SVP One sensor that doesn't always get the attention it deserves is the Sound Velocity Profiler (SVP). I've seen situations where everything
ROV Operations: The Eyes Beneath the Surface When we think about offshore operations, most of the work happens where we can't see it. That's where Remotely Operated Vehicles (ROVs)
Multibeam Data vs. Backscatter: They Come from the Same Sonar, but They Tell Different Stories A common misconception is that multibeam data and backscatter are the same thing. In
Sound Velocity Errors in Hydrographic Surveying: Causes, Detection and Prevention Sound velocity is one of the most important environmental inputs in hydrographic surveying. A mult
Side-Scan Sonar Interpretation: A Practical Guide to Reading the Seabed Side-scan sonar is one of the most effective tools for imaging the seabed. It is widely used for route surve
Sensor Offsets and Alignment in Hydrographic Surveying Modern hydrographic surveys combine observations from several sensors. A multibeam echosounder measures acoustic range and an
# LBL vs USBL: Which Underwater Positioning System Should You Use? Underwater positioning is a critical part of offshore survey, construction, inspection, drilling, and subsea inte