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Marine navigation has its own secret language, and let’s face it—half of it sounds like someone making things up after too much grog. You’ve got your ‘dead reckoning,’ which isn’t nearly as ominous as it sounds, and ‘bearing,’ which has nothing to do with polar bears but everything to do with pointing the right way. Don’t even get us started on ‘knots’—why measure speed like you’re tying a shoelace? And then there’s ‘fix (not for your engine) and ‘DR’ (spoiler: it’s not a doctor). If you’re baffled, don’t worry—we’re here to help you decipher this nautical code so you can sound like a pro, not a landlubber who’s lost their compass.
A World Meteorological Organization data format for compact exchange of gridded meteorological and oceanographic fields. GRIB files may contain forecast wind, pressure, precipitation, temperature, waves, currents or other parameters on a defined grid at stated times and levels. GRIB2 provides richer metadata and encoding than GRIB1. A GRIB viewer turns model fields into charts but…
A compact transparent chartwork tool combining straight edges, a rotating compass rose and distance scales. It is used to plot or measure courses and bearings on training and nautical charts without a separate parallel ruler and protractor. The rose is aligned with a chart meridian before the edge is used along the required line. Distance…
The apparent deflection of motion relative to a rotating reference frame, including Earth. On Earth, freely moving air and water are deflected to the right in the Northern Hemisphere and to the left in the Southern Hemisphere. The effect is zero at the equator and increases with latitude and speed. It strongly influences large-scale winds,…
A vessel’s speed relative to the water immediately around it. A water log may measure STW from paddlewheel, electromagnetic, ultrasonic or pressure-based sensing. It differs from speed over the ground, which includes the effect of tidal stream or current and is normally derived from GNSS. Local flow around the hull, fouling, bubbles, heel and calibration…
General Nautical Terminology,Weather (Meteorology)
If you belive the Earth is flat, you're about to fall of the end...
If you belive the Earth is flat, you're about to fall of the end...
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