shrug-l: Australia & GPS

[Sykes, John]

The NGS is proposing to take that into account with the new 2022 datum.  Right now, NAD83 holds the North American plate at a constant location, which of course, does not agree with precision GPS readings (sum-centimeter accuracy) which are geocentric.  Hence, the problem.

  ̶ John

From: SHRUG-L [mailto:shrug-l-bounces at lists.dep.state.fl.us] On Behalf Of Jim Robeson
Sent: Monday, August 15, 2016 8:44 AM
To: Porter, Bill <bporter at spartanburgcounty.org>
Cc: shrug-l at lists.dep.state.fl.us; C. Henry Depew <sisu26 at nettally.com>
Subject: Re: shrug-l: Australia & GPS


Florida moves 1.5 -2 centimeters west ward per year.  One of the most stable places in the world, tectonicly speaking.

Jim Robeson
GPServ, Inc.
Direct 850-656-6075

On Aug 15, 2016 8:27 AM, "Porter, Bill" <bporter at spartanburgcounty.org<mailto:bporter at spartanburgcounty.org>> wrote:
Darn those tectonic plates.  It takes a lot of gall for a planet to mess with its human inhabitants. It's almost as if we are seen as transient residents in a longer-lived system ...

-----Original Message-----
From: SHRUG-L [mailto:shrug-l-bounces at lists.dep.state.fl.us<mailto:shrug-l-bounces at lists.dep.state.fl.us>] On Behalf Of C. Henry Depew
Sent: Saturday, August 13, 2016 5:10 PM
To: shrug-l at lists.dep.state.fl.us<mailto:shrug-l at lists.dep.state.fl.us>
Subject: shrug-l: Australia & GPS

Greetings!
     Australia is moving along to the north at about 3 inches per year.  In the last 20 years it has reportedly move about 20 feet.  All the GPS readings on the continent are reportedly off a bit.

C. Henry Depew

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