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Meridian - Magnetic meridian
Unit 1- Surveying
Compass surveying
Systems of angular measurement
Meridian
Magnetic meridian
Magnetic meridian through a point is the direction shown by a freely flatting and balanced magnetic needle free from all other attractive forces. The direction of magnetic meridian can be established with the help of a magnetic compass.
Magnetic bearing
The magnetic bearing of a line is the horizontal angle, which it makes with the magnetic meridian passing through one of the extremities of the line.
Magnetic meridian through a point is the direction shown by a freely flatting and balanced magnetic needle free from all other attractive forces. The direction of magnetic meridian can be established with the help of a magnetic compass.
Magnetic bearing
The magnetic bearing of a line is the horizontal angle, which it makes with the magnetic meridian passing through one of the extremities of the line.
Last modified: Friday, 29 April 2011, 9:45 AM