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1. yourwiseadvices.com › does-google-earth-use-nad-27Does Google Earth use NAD 27 or NAD 83? – Wise-Advices

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   Jan 13, 2020 · Does Google Earth use NAD 27 or NAD 83? For FM and LPFM radio stations, the FCC uses an older coordinate system called NAD27 whereas most coordinates including Google Maps coordinates, use the newer NAD83 system.

2. www.ncesc.com › geographic-faq › what-is-theWhat is the difference between NAD 83 and NAD 27?

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   Apr 26, 2024 · What is the difference between NAD 83 and NAD 27? The North American Datum of 1983 (NAD 83) and the North American Datum of 1927 (NAD 27) are both horizontal datums used in geodetic coordinate systems for mapping and surveying in North America. Here are the answers to some commonly asked questions about the differences between NAD 83 and NAD 27: 1.

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   What is the difference between NAD 83 and NAD 27?

   • The NAD 27 was based on the Clarke Ellipsoid of 1866 and the NAD 83 is based on the Geodetic Reference System of 1980. The NAD 27 was computed with a single survey point, MEADES RANCH in Kansas, as the datum point, while the NAD 83 was computed as a geocentric reference system with no datum point.

   Frequently Asked Questions: Datums | Datums | National Geodetic Survey

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   Is Google Maps based on NAD 83 or WGS 84?

   • Most maps are based on NAD 83, developed by NGS. Google Maps and GPS rely instead on WGS 84, maintained by a parallel military agency, which, thanks to Edward Snowden, we now know has a considerably larger budget. The civilian one is optimized for surveying within North America; the military one sacrifices domestic precision for global coverage.

   What Happens to Google Maps When Tectonic Plates Move?

   blogs.scientificamerican.com/critical-opalescence/what-happens-to-google-maps-when-tectonic-plates-move/

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   Why is NAD 83 not tying coordinates to one plate?

   • The effect of not tying coordinates to one plate is that surveyed positions, and the maps built upon them, change over time. In contrast, NAD 83 sits atop the North American plate like a fishnet laid out on the deck of a boat. As the plate moves, so does the datum. Other regions of the world likewise have their own local datums.

   What Happens to Google Maps When Tectonic Plates Move?

   blogs.scientificamerican.com/critical-opalescence/what-happens-to-google-maps-when-tectonic-plates-move/

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   How precise is NAD 83?

   • “We are currently working with a system that is very self-consistent and very internally precise, but we know, for example, that the (0,0,0) coordinate of NAD 83, which should be the center of the Earth, is off by about two meters,” Smith says.

   What Happens to Google Maps When Tectonic Plates Move?

   blogs.scientificamerican.com/critical-opalescence/what-happens-to-google-maps-when-tectonic-plates-move/

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4. www.ncesc.com › geographic-pedia › what-is-theWhat is the difference between WGS84 and NAD 83?

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   May 21, 2024 · While WGS84 provides a global reference system for GPS and navigation, NAD83 is specifically designed for tracking the movement of the North American plate. Both datums have their unique characteristics and applications, and conversions between the two are possible with the right tools and software.

5. www.ncesc.com › geographic-pedia › is-there-a-shiftIs there a shift between NAD 83 and NAD 27 ... - NCESC

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   Apr 4, 2024 · The geodetic “center” of NAD 27 is a base station located at Meades Ranch in Kansas. What Datum Does Google Earth Use? Google Earth uses a Mercator projection based on the World Geodetic System (WGS) 1984 geographic coordinate system (datum).

6. www.ngs.noaa.gov › datums › faqFrequently Asked Questions: Datums | Datums | National ...

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   Jul 12, 2018 · This datum, NAD 83, is the current geodetic reference system. NAD 83 is based on the adjustment of 250,000 points, including 600 satellite Doppler stations, which constrain the system to a geocentric origin. (Geodetic Glossary, pp 57) Why did NGS change from NAD 27 to NAD 83?

7. www.google.com › intl › en_usGoogle Earth

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   Download Google Earth in Apple App Store Download Google Earth in Google Play ... Make use of Google Earth's detailed globe by tilting the map to save a perfect 3D view or diving into Street View ...

8. blogs.scientificamerican.com › criticalWhat Happens to Google Maps When Tectonic Plates Move?

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   Nov 11, 2013 · This is where plate tectonics can make itself felt. Confusingly, the U.S. uses two separate datums. Most maps are based on NAD 83, developed by NGS. Google Maps and GPS rely instead on WGS 84 ...