Precision and Accuracy in Geodetic Surveying
Вставка
- Опубліковано 11 тра 2015
- 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.noaa.gov/.
For more information and a gallery of reusable resources from this video see www.meted.ucar.edu/training_m...
See COMET's MetEd website for hundreds of other geo-science training resources: www.meted.ucar.edu. - Наука та технологія
This is a concisely informative overview of the concept of Geodesy! 👏🏾
I find this information useful and helpful. Thanks to the people who made this so easy to understand.
crystal clear to know about accuracy and precision, thank you so much....
finally clear the term accuracy and precision (Y)
Nicely done!
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.
hey! nice video bro! geodesyyyyyyy is supwer extra cool
Quick question. Why is the earth curvature only corrected after the surveying? Like why can’t they measure the earths curvature?
Elevation ANGLES 👌
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.
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.
Good
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.
Ayoo siapa yang sedang diklat PPSDM
See those LINES w a VERTEX??? CANNOT happen on a sphere.
There is no such thing as a right angle on a globes surface.
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.
This is why we divide the earth into many different coordinate systems that are small and have minimal distortion.
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.