BEARING VS AZIMUTH
Understanding the difference between bearing and azimuth is essential for navigation, surveying, chartwork, and position fixing. Both methods describe direction, but they use different reference systems and angle measurements.
Bearing is measured using quadrant notation from North or South toward East or West. The angle is always between 0° and 90°. For example, N 40° E means 40 degrees east of north. Bearings are commonly used in traditional navigation, surveying, and compass observations.
Azimuth uses a full-circle system measured clockwise from North, ranging from 0° to 360°. For example, an azimuth of 120° indicates a direction 120 degrees clockwise from North. Azimuths are widely used in modern navigation systems, ECDIS, radar plotting, GPS applications, and mapping.
The key difference is simple: Bearing uses quadrant directions (N, S, E, W) with angles up to 90°, while Azimuth uses a single clockwise angle from 0° to 360° measured from North. Both methods represent the same direction but in different formats.
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