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Convert Nad 83 to WGS84??


Kealia

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Ok guys, I jsut started Geocaching 3 weeks ago and thought that I'd try to get a few neighbors interested by visting a few BMs in the area.

I poked around the site and FAQs but couldn't find a way to convert the coords to WGS84; is it possible? I'm using an old Magellen 2000 (I think it's so old it was HIS!) and it doesn't have the datum as an option.

 

Any help is appreciated.

 

Thanks!

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As previously note for all but the most precise applications NAD 83 and WGS 84 are identical. There is a Federal Register Notice to that effect.

http://www.ngs.noaa.gov/PUBS_LIB/FedRegister/FRdoc95-19408.pdf

 

In reality, NAD 83 and WGS 84, actually WGS 84 is more appropriately referenced as WGS 84 (G1150) are different by approximately 1 m in both the horizontal (latitude and longitude) and ellipsoid height components.

 

Anyone who want to more fully understand the relationship of coordinate systems should read the series of 4 articels by Snay and Soler under "Coordinate Systems" on the NGS CORS site --http://www.ngs.noaa.gov/CORS/information4

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Thanks 2oldfarts! I've got a friend in AZ that I'm trying to get hooked on the sport, too!

 

Thanks for the additional info DaveD.

 

I'm going to play aroudn with UTM as well so I can get comfortable using all coord systems.

 

As it is I have to convert the coords on the caches to go into my Magellan as Deg MM.SS. so a little flexibility in what I can use shoudl be a good thing!

 

I appreciate the responses.

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quote:
Originally posted by seventhings:

One meter difference between NAD83 and WGS84 data is consistent with my experience using Garmin Vista.


 

Quite frankly how the hell can a garmin Vista tell the difference is 1 metre between anything. Geez the URE in space is more than 1 metre an some try an convince themselves that handhelds have integrity of 1 metre, come on.

 

Cheers, Kerry.

 

I never get lost icon_smile.gif everybody keeps telling me where to go icon_wink.gif

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