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Cumulaitve error is a disadvantage. Human and machine error is addative with optical work. With each setup and stationing error is imarted to the measurements and subsequent setups and measurements accumulate the errors of previous setups. If you have a 5" gun, as much as 2.5" of angular error is inherent to every shot. The error in gps in not cumulative. Each shot has a "knowable" sphere of error that does not add up from shot to shot to shot.
The second disadvantage is that measurments are not geodetic. An estimated scale factor and correction for earth curvature is necessary to make measurements relative to the ellipsoid, which is the basis of the UTM/State Plane grids
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What is the diffrence between thedolite and total station?
A theodolite is a surveying instrument used for measuring horizontal and vertical angles, typically with a rotating telescope. A total station combines the functionality of a theodolite with an electronic distance measurement (EDM) device to measure angles and distances simultaneously. Total stations are more advanced and versatile than theodolites.
What is the difference between thedolite and total station?
A theodolite is a surveying instrument used to measure horizontal and vertical angles. It requires a separate instrument to measure distances. A total station is a surveying instrument that combines the functions of a theodolite and distance measuring device, allowing for simultaneous measurement of angles and distances.
What are The disadvantages to using land resources?
Some disadvantages of using land resources include deforestation, habitat destruction, soil erosion, and loss of biodiversity. Exploiting land resources can also lead to land degradation, desertification, and disruption of ecosystems.
Types of surveying work that can be done with a total station?
A total station can be used for various surveying tasks such as measuring angles and distances, conducting topographic surveys, setting out construction sites, creating boundary lines, and performing control surveys for infrastructure projects.
Can sea-level pressure and station pressure be the same?
No, sea-level pressure and station pressure are not the same. Station pressure is the atmospheric pressure measured at a specific location, while sea-level pressure is the station pressure adjusted to sea level using a standard formula to account for differences in elevation.
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