Offshore Surveys

9.93K subscribers

233 videos

The definitive voice for Offshore Surveying, Hydrography, and Marine Technology. Welcome to Offshore Surveys, your professional guide to subsea mapping and o...

Latest Videos

Vessel Motion & Squat What Every Surveyor Must Know

The Physics Behind Optical Gyrocompasses

Your Tide Gauge Observations Are Completely Wrong

Why Your Two Daily High Tides Are Never Equal — The Lunar Declination Effect Explained

Offshore Surveying in 2026 The Truth Nobody Tells You

Two High Tides a Day — So Why Did the Second One Strand the Survey Vessel

Multibeam Patch Test Calibration — The Exact Sequence for Pitch, Roll, Yaw and Latency

AI and Autonomous Surveys Are Coming — What Happened to Kodak Should Worry Every Surveyor

GPS Position Jumps During Equinox Here's Why - the Russell-McPherron Effect.

Pi (π) Is Hidden in Every GPS, Gyrocompass and Sonar on Your Vessel — Here's How

Offshore Surveying Is Changing in 2026 — AUV, Digital Twins and the End of Generic Bathymetry

Mastering the Doodson Filter for Mean Sea Level

How to Calibrate Gyro Compass Using a Sextant Offshore — The Limb Averaging Method

Offshore Surveying Robots, AI & Survival

What Is A LiDAR Survey How LiDAR Works

The Three Skills Every Surveyor Must Master Now

Everything You Must Do Before Starting a Bathymetry Survey — Full Pre-Survey Checklist

Fascinating History of Measuring Ocean Depths

There Are 5 Different North Poles — And Using the Wrong One Can Wreck Your Survey

Your Gyro Compass Is Wrong — Here's How Surveyors Calibrate Vessel Heading Using the Sun

Introducing Offshore Surveys

Vessel Heading Explained — True, Grid, Magnetic, and How the Gyro Compass Actually Works

Can SOLAR Flares WIPE OUT GPS and Power Grids

Your GPS Lies Without This Time & Relativity Secrets

How the Moon Shapes Earth Moon Phases, Eclipses & Tides Explained

Free Course How Tides Work and Why Every Offshore Survey Depends on Getting This Right

Why Some Places Get 2 Tides a Day and Others Get Only 1 — The Real Science

🌊 Understanding Tides & Depths How Vertical Datums Define Water Levels

Offshore Projects From Zero — Free YouTube Course on Marine Work, Terminology & Surveying

Start Here Free Offshore Surveying Basics Course — Everything Beginners Must Know First