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Registered
Join Date: Oct 2004
Posts: 15,612
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Surveyors just love to survey everything. Sort of like the way architects love to dream and doodle.
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06-17-2022, 10:34 AM
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Join Date: Apr 2002
Posts: 30,495
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So tell me about elevation....
Are all these topo maps and surveys gonna be wrong when the sea level rises a foot? |
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06-17-2022, 02:40 PM
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Registered
Join Date: Jul 2012
Location: Mississippi
Posts: 2,354
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Quote:
Probably not before the National Geodetic Survey (NGS) screws around and moves the center of the Earth in their ECEF (Earth Centered-Earth Fixed) program....again. |
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06-17-2022, 03:51 PM
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Banned
Join Date: Jan 2005
Location: cutler bay
Posts: 15,141
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Quote:
then they were switching to 1983 when I quit in 2000 they do not adjust it very often https://www.usgs.gov/faqs/how-large-north-american-datum-1927-nad-27-nad-83-shift it is just numbers avg over a time and tides vary by air pressure wind direction also |
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06-17-2022, 05:13 PM
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