Definition of reciprocal leveling
Words nearby reciprocal leveling
MORE ABOUT RECIPROCAL LEVELING
What is reciprocal leveling?
Reciprocal leveling is a surveying technique in which readings are taken from both directions between two points in order to reduce errors.
In surveying, to level is to find the relative elevation of different points in the land. Reciprocal leveling is useful when you are leveling between two points that are very far from each other. At far distances, the earth’s curvature and atmospheric refraction can cause significant leveling calculation errors, more than at short distances.
For example, you have point A on one side of a canyon and point B on the other side. You position your surveying device close to point A and measure its distance from the ground. From the same position, you measure point B’s distance from the ground. Next, you take your equipment across the canyon close to point B. Now, you take the same two measurements you did before but from the opposite direction. By calculating the difference between these two pairs of measurements, you can determine what the leveling error is to arrive at what a truly level line would be.
Why is reciprocal leveling important?
The term reciprocal leveling dates back to at least the late 1800s. This technique is used to survey across large distances, such as across rivers or other natural formations. Reciprocal leveling depends on reciprocal (matching) pairs of measurements to get a more accurate reading.
Because the reciprocal leveling uses the same two points for its calculations, the error should be identical when measuring from either side. So, we simply need to calculate the height difference between the two pairs of points.
Did you know ... ?
To lessen the variability of refraction, the best time to perform reciprocal leveling is between 10 a.m. and 3 p.m.
What are real-life examples of reciprocal leveling?
Reciprocal leveling is often used when surveying over long distances, especially across rivers or over a pit.
Reciprocal leveling is most familiar to people who perform surveying, such as engineers or geographers.
2. Reciprocal Leveling
-employed to determine the difference in elev. between two prints when its difficult or impossible to keep backsight and foresight short & equal such condition usually exist when measuring a line across side rivers, lakes or in rugged terrains
— tokio (@rstnejne) December 4, 2019
What other words are related to reciprocal leveling?
True or False?
Reciprocal leveling is performed in order to eliminate calculation errors caused by the earth’s curvature and atmospheric refraction.
How to use reciprocal leveling in a sentence
And demonizing the women leveling these charges is despicable.
Does political and social equality really have to entail a leveling of sexual difference?How Straight World Stole ‘Gay’: The Last Gasp of the ‘Lumbersexual’|Tim Teeman|November 12, 2014|DAILY BEAST
In fact, the data seem to show positron counts leveling off at high energy, but things are still pretty messy.Still No Dark Matter from Space Station Experiment|Matthew R. Francis|September 21, 2014|DAILY BEAST
His visit also included a reciprocal invitation that the pope plans to follow up on in late May.Obama Goes to Rome Hoping to Tap Some of Pope Francis’ Popularity|Barbie Latza Nadeau|March 26, 2014|DAILY BEAST
Sometimes I do a little, sometimes I do a lot, but always reciprocal and respectful.Kentucky’s Finest Antihero: Walton Goggins on Justified’s Chameleon Villain|Allen Barra|February 11, 2014|DAILY BEAST
The reciprocal tie in former times between servant and master was strong, now it is wholly gone.The Ladies' Book of Etiquette, and Manual of Politeness|Florence Hartley
In his simple creed if a girl accepted a man and let him kiss her and wore his ring it was a reciprocal love affair.The Amazing Interlude|Mary Roberts Rinehart
A remarkable identity of ideas and tastes, a ready and mutual sympathy, a reciprocal respect, soon made them friends.Urania|Camille Flammarion
Fig. 69 b is the polygon of external forces, and 69 c is half the reciprocal figure.
When a reciprocal love shall inflame my veins, then my lips will grow purple, and my kisses will be of fire!