WGS84 Standard
Thread Starter
Joined: Nov 1999
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WGS84 Standard
Would anybody know of a URL that contains information as to whether a country is compliant with WGS84 standard? I am thinking strictly in terms of aviation applications here.
TIA for any information provided.
TIA for any information provided.
Joined: Mar 2002
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From: In transit
Joined: Jun 2001
Posts: 4,777
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From: Blighty
The whole world has been mapped to WGS84 standard. It was done to facilitate GPS. As the US military use it to guide their bombs and as no-one knows who GWB is going to declare as an 'axis of evil' as part of his 'war on terror', I suppose they thought they'd better include everyone!
BTW, have a look at Google Earth - it's brilliant!
BTW, have a look at Google Earth - it's brilliant!
Cunning Artificer
Joined: Jun 2001
Posts: 3,125
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From: The spiritual home of DeHavilland
WGS84 Compliance? As someone posted here not too long ago, when his GPS was reporting him at the geographic coordinates for Southend airport he found he was a not inconsiderable distance away at Southend Pier. (The pier was still intact at the time) The maps were not WGS84 compliant. That's one reason why caution is necessary when using GPS.
Joined: Mar 2000
Posts: 100
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From: Oakland CA USA
"when his GPS was reporting him at the geographic coordinates for Southend airport he found he was a not inconsiderable distance away at Southend Pier. (The pier was still intact at the time) The maps were not WGS84 compliant."
The discrepancy was what-- miles? If so, that's much too large to be explained by the shift from the old mapping datum to WGS84.
The discrepancy was what-- miles? If so, that's much too large to be explained by the shift from the old mapping datum to WGS84.
