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Precision and Accuracy in Geodetic Surveying

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This brief video, produced in collaboration between NOAA’s National Geodetic Survey and The COMET Program, is aimed at surveying professionals, planners, policy-makers and others who use mapping products. The video emphasizes that survey measurements need to be precise as well as verified as accurate by relating measurements to a known reference system such as the National Spatial Reference System in the United States.
For more information on geodetic datums, visit www.geodesy.noa....
For more information and a gallery of reusable resources from this video see www.meted.ucar...
See COMET's MetEd website for hundreds of other geo-science training resources: www.meted.ucar.edu.

Опубликовано:

25 авг 2024

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Комментарии : 21

@MarigoldEngineeringLimited 8 месяцев назад

This is a concisely informative overview of the concept of Geodesy! 👏🏾

@mastersoundsproject 6 лет назад

I find this information useful and helpful. Thanks to the people who made this so easy to understand.

@dinoroy8962 Год назад

crystal clear to know about accuracy and precision, thank you so much....

@prashantpaudel9635 8 лет назад

finally clear the term accuracy and precision (Y)

@MapScience 8 лет назад

The bullseye metaphor works well for teaching accuracy, but not precision. Accuracy describes the quality of measures [accurate:the data contain no or acceptable small errors, inaccurate: the data contain unacceptable large errors]. Precision describes the quality of the measuring method [precise:the method produces repeatable and consistent measures, imprecise: the method does not ... ]. The bullseye metaphor leads learners to understand incorrectly that both terms are describe data quality.

@Engineersupply 6 лет назад

Nicely done!

@rightsarentwrong5635 4 года назад

Quick question. Why is the earth curvature only corrected after the surveying? Like why can’t they measure the earths curvature?

@NostyFripples Год назад

Elevation ANGLES 👌

@tims5268 11 месяцев назад

Because you can't measure the curvature at one single point. Earth is huge, it is only when you put a series of measurements together that you need to start accounting for the curvature of the Earth.

@MapScience 8 лет назад

The bullseye metaphor always works well for teaching accuracy, but not precision. Accuracy describes the quality of measures {(accurate:the data contain no or acceptable small errors), (inaccurate: the data contain unacceptable large errors)}. Precision describes the quality of the measuring method {(precise:the method produces repeatable and consistent measures), (imprecise: the method does not ...)]. The bullseye metaphor presented in the video leads learners to believe that both terms are used to describe data.

@zsbcieszyn801 4 года назад

hey! nice video bro! geodesyyyyyyy is supwer extra cool

@MapScience 8 лет назад

The bullseye metaphor always works well for teaching accuracy, but not precision. Accuracy describes the quality of measures [accurate:the data contain no or acceptable small errors, inaccurate: the data contain unacceptable large errors]. Precision describes the quality of the measuring method [precise:the method produces repeatable and consistent measures, imprecise: the method does not ... ]. The bullseye metaphor presented in the video leads learners to believe incorrectly that both terms are used to describe data.

@emanuelveloza2273 7 лет назад

Good

@kucingrumahan6302 Год назад

Ayoo siapa yang sedang diklat PPSDM

@NostyFripples Год назад

See those LINES w a VERTEX??? CANNOT happen on a sphere. There is no such thing as a right angle on a globes surface.

@tims5268 11 месяцев назад

And yet everyone who actually knows what they are talking about disagrees with you. It's almost like you are an idiot that doesn't have a clue what he is talking about.