Curvature and Refraction correction in Levelling | Animated Explanation
Автор: Sangeetha Sundar
Загружено: 2020-07-26
Просмотров: 12809
Описание:
#Curvatureandrefractioncorrection #levelling #animatedexplanation #surveyingclasses
This video explains curvature and refraction correction to be accounted while performing levelling at longer distance. The curvature effect is insignificant at shorter distance. Refraction effect is due to change in velocities of light when it travels through air of different densities.
For height of instrument method watch:
• Height of instrument method introduction
For problem solved on levelling using Height of instrument see:
• How to calculate RL using Height of instru...
Music: www.bensound.com
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