View Full Version : WGS84 Standard
Pengintai
27th Oct 2005, 08:23
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.
LeftBreak
27th Oct 2005, 17:34
Try http://www.jeppesen.com/wlcs/index.jsp?section=resources&content=publications_wgs84.html%20 as at Feb 2005.
Lefty
Dan Winterland
28th Oct 2005, 02:18
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!
Blacksheep
31st Oct 2005, 03:59
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.
reynoldsno1
31st Oct 2005, 18:29
... well, to be fair, it wasn't actually a GPS problem...
Blacksheep
31st Oct 2005, 23:32
Perhaps not, but he was still "temporarily unsure of his position"! ;)
Tim Zukas
1st Nov 2005, 01:56
"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.