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What do you mean by true course in navigation?
you can travel Magnetic or true courses ie magnetic north and true north. Magnetic north is by way of compass
What is magnetic variation?
Since the Earth's magnetic poles are not located at the geographic poles, a magnetic compass doesn't point to 'true' (geographic) north. The DIFFERENCE angle between magnetic north and true north is the magnetic variation or declination where you are. It changes for different locations.
Is wind direction from true north or magnetic north?
True North...
Does gps indicate true north or magnetic north?
True North
What is the Is the difference between true North and magnetic north?
magnetic variation
What is the name given to the difference between true north and magnetic north?
magnetic variation
Does a compass point true north magnetic north or at the north pole?
North Star points at True North, you can use a compass and north star to see how far off magnetic north is from your location. .
True or false Declination is the difference between true north and magnetic north?
true
What Norths are mostly using in land surveying True North or Magnetic North or Grid North?
magnetic north
How is magnetic declination measured in the northern hemisphere?
It is measured exactly the same in the Southern hemisphere (no difference between the two hemispheres). It is the difference between magnetic north and true north and it varies all over the globe. Magnetic declination (also called magnetic variation) is positive when magnetic north is east of true north (clockwise) and it is negative when magnetic north is west of true north (anti-clockwise).
What does magnetic north mean?
'Magnetic North' is the name given to a location in the Arctic, to differentiate it from 'True North'. Whereas True North is fixed and located at the Earth's axis of rotation, the 'Magnetic North' varies from year to year. The term, 'Magnetic North', does not describe the magnetic polarity at that location which, actually, is a south pole.
Why are there 2 norths magnetic north and the true north?
Magnetic north is the direction towards which a compass needle points, influenced by the Earth's magnetic field. True north, on the other hand, refers to the geographic North Pole, the point at which the Earth's rotational axis intersects its surface. The discrepancy between magnetic north and true north is known as magnetic declination and varies depending on the location on Earth.
