Limitations of GPS

Why we should learn to navigate  (published January 2014) If you rely solely on GPS to navigate in the fog, you will not know if it […]

Coastal Currents

(published July 2012) Current flow within a few miles of a coastline is usually the result of a complex set of forces. Contributing factors include tidal […]

Ocean Dead Reckoning

If we were guaranteed our GPS would always work, we would not have to do much more for ocean navigation. Unfortunately, we would never know if […]