Survey equipment
A piece of equipment that shoots a laser taking very accurate angular and distance measurements.
What is a total station?
This Former president is credited for inventing our public land system.
Who is Thomas Jeffereson?
The optics that are used to look downward, generally to precisely place a target or instrument above a point.
What is an optical plummet?
The type of leveling performed using all three wires of the compensating level.
What is three wire leveling?
NGS benchmarks are commonly published on these documents.
What are data sheets?
A survey chain will typically do this when the temperature of the chain itself drops.
What is contract?
One of the four presidents on mount Rushmore was that was not a surveyor?
Who is Theodore Roosevelt?
This weighted device allows someone to project a point up or down in a straight or "plumb" line.
What is a plumb bob?
This type of leveling is performed by making observations between two widely separated points in both directions to eliminate the effects of atmospheric refraction and the curvature of the earth.
What is reciprocal leveling?
While WGS 84 is a geographic coordinate system, UTM is considered to be this kind of coordinate system.
What is a projected coordinate system?
Non Geo-sycnchronary satellites that are used in navigation and land surveying typically orbit the earth, this often.
What is every 12 hours?
These two surveyors were tasked with surveying across the land known as the Louisiana Purchase.
Who are Lewis and Clark?
What is the standard length of a single link of a survey chain?
0.66'
Focal plane, focal length, AGL and ASL are all variables when processing these kinds of surveys.
What are photogrammetry surveys?
An abstract coordinate system with a reference surface that serves to provide known locations to begin surveys and create maps.
What is a geodetic datum?
A type of ruler with a sliding central strip marked with logarithmic scales and used for making rapid calculations.
What is a slide rule?
In this country a miscalculation was made and a base ten unit was applied. The unit is now known as the meter.
What is France?
The old saying "Some old hippie caught another hippie tripping on acid" is a saying that helps us to remember how to solve these sort of shapes.
What is a right triangle?
Single and multibeam sounders accompanied with heave pitch and row sensors are commonly used in these types of surveys.
What are hydrographic surveys.
This is commonly referred to as the height above the geoid.
What is the orthometric height?
A type of instrument developed in 1590 by Cyprian Lucar that would allow observations and plotting to be done simultaneously.
What is a plane table?
This type of plane was named after the mathematician Rene Descartes. It is a plane with a rectangular coordinate system that associates each point in the plane with a pair of numbers.
What is the Cartesian plane?
This rule, sometimes called a "bowditch" rule is a type of adjustment that distributes the linear misclose of a traverse proportionally throughout each leg of a traverse.
What is a compass rule adjustment?
These types of surveys typically would have control set above the instruments rather than at ground level.
What are mine surveys
This imaginary sea level surface undulates over all of the earth.
What is a geoid