Which correction accounts for the effects of atmospheric light bending in surveying?

The correction that accounts for the effects of atmospheric light bending in surveying is refraction correction. In surveying, when light travels through the atmosphere, its path can change due to variations in temperature, pressure, and humidity. This phenomenon, known as refraction, causes the apparent position of objects to differ from their true position, which can lead to inaccuracies in measurements if not properly adjusted for.

Refraction correction involves modifying survey measurements to compensate for this bending of light rays. This is particularly important in long-distance measurements or when working near large bodies of water or in areas with significant atmospheric variations. By applying refraction correction, surveyors ensure that their observations more accurately reflect the actual distances and angles in the field, leading to more reliable and precise surveying results.

Understanding the importance of refraction correction is crucial for surveyors in maintaining the standard and accuracy required in their work, especially when considering the impacts of local weather conditions.