DGPS

Differential GPS — a GPS that uses correction signals from ground or satellite-based reference stations to refine accuracy from metres to sub-metre.

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Related D-terms

Dinghy
A small boat, sailed or rowed, used for pleasure or as a yacht's tender.
Drogue
A long cone or series of small cones streamed on a bridle from the stern in very heavy wea…
Dhow
A traditional Arabian sailing craft, typically single- or twin-masted and carrying lateen …
Daysailer
A small open or lightly decked sailboat intended for short pleasure sails rather than over…
Dodger
A fabric and framework spray hood forward of the cockpit that shelters the crew from wind …
Dock
A quay, pontoon, or berth where a vessel ties up — and also the act of bringing her alongs…
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