What Is A Course Over Ground? (2024)

Similar Terms: COG

Course Over Ground is the actual direction of progress of a vessel, between two points, with respect to the surface of the earth. The vessel’s Heading may differ from the Course over ground due to the effects of wind, Tide and currents.

What Is A Course Over Ground? (2024)

FAQs

What Is A Course Over Ground? ›

The course is the intended direction of travel. Ideally (but rarely) it is the same as heading

heading
In navigation, the heading of a vessel or aircraft is the compass direction in which the craft's bow or nose is pointed. Note that the heading may not necessarily be the direction that the vehicle actually travels, which is known as its course or track.
https://en.wikipedia.org › wiki › Heading_(navigation)
. On a GPS receiver, the actual direction of motion is called course over ground (COG) or, on some units, track.

What does "course over ground" mean? ›

Course Over Ground (COG) is the actual direction of motion (the intended direction of travel). While heading is the direction in which a vehicle/vessel is pointing at any given moment (https://www.applanix.com/news/blog-course-heading-bearing/).

What is the meaning of course ground? ›

Course Over Ground is the actual direction of progress of a vessel, between two points, with respect to the surface of the earth. The vessel's Heading may differ from the Course over ground due to the effects of wind, Tide and currents.

What is course over ground and speed over ground? ›

This course is called The Course Over Ground (COG). On similar lines, the speed with respect to the seabed, after taking into account favourable or adverse current, is The Speed Over Ground (SOG).

What is the difference between SOG and STW? ›

Satellite receivers measure actual speed against the Earth itself – they calculate what is called Speed over the Ground or 'SOG' for short. If it's more straightforward to think about, remember this as 'speed over the chart'. A speed instrument measures the boat's Speed Through the Water – abbreviated 'STW'.

What does course ground mean? ›

The term “coarse grind” refers to the coffee ground with relatively big coffee bean particles, as its name implies. This means that the water might not pull out as much flavour, and the coffee might not be as bitter as it would be with finer grounds. This grind is perfect for making coffee in a French press.

What is the slang for of course? ›

certainly , by all means, indeed , surely , yes , yes indeed, absolutely , definitely , needless to say, naturally , obviously , clearly , unmistakably, for sure, for a fact, distinctly, sure (informal), sure thing (slang), make no mistake, and that's a fact, yes indeedy (humorous, slang), yes sirree (humorous, slang), ...

What is the exact meaning of course? ›

1. : the act or action of moving in a path from point to point. the planets in their courses. 2. : the path over which something moves or extends: such as.

What are the two meanings of course? ›

The word course is used as a noun and a verb with many different meanings. Some common meanings as a noun include “a route or direction taken,” “a program of instruction” and “a part of a meal served at one time.” As a verb, course most often means “to run, race, or move swiftly.”

What does SOG stand for on a boat? ›

SOG. Speed Over Ground. This differs from boat speed- so for example if your boat is stationary in the water, it may still be moving in relation to the land due to current and wind etc.

What does cog mean on a boat? ›

COG. Course over ground

The true direction of progress of a vessel between two points with respect to the surface of the earth. The vessels COG may differ from its heading due to effects of wind, tide and currents.

What is cog and sog in GPS? ›

Schematic of speed over ground (SOG), course over ground (COG), ship heading (HDG), and rate of turn (ROT).

Why use stw for collision avoidance? ›

It is shown that speed through the water is the appropriate reference for avoiding collision on the high seas since it will produce a correct measure of the target-aspect information that is essential in determining legal collision avoidance manoeuvres.

What is the difference between course made good and course over ground? ›

Note we distinguish course over ground from course made good, as one being present dynamic value, and the other being past. The phrase "course made good," can be used to refer to a single track line or to the combination of several course changes between two points.

What is my speed over ground? ›

Speed over ground is the actual “made good” speed (eg as measured by GPS, or against known landmarks on a map etc.) Example: boat indicated speed (boat speedo based on rotating paddlewheel wheel, or pitot tube) of 10 kts going into a 5 kt tidal flow…….”made good” or “speed over ground” is 5 kts.

What does SOG and COG mean? ›

​SOG = Speed over Ground - includes current forecast. ​COG = Course over Ground to the next waypoint.

What does above ground mean in slang? ›

Definition of 'aboveground'

not secret or hidden; free, open, etc.

What is the difference between true course and ground track? ›

The difference between the two depends on wind. A true heading or course is corrected for magnetic variation; a magnetic heading or course is not. Track and course are often used interchangeably, but technically a "course" refers to what you intend to do while a "track" refers to what you actually do.

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