WXforum.net

General Weather/Earth Sciences Topics => Earth Sciences => Topic started by: Axelvold on February 02, 2010, 03:58:53 AM

Title: GPS positions
Post by: Axelvold on February 02, 2010, 03:58:53 AM
Does the Crustal motion affects the GPS position?
Title: Re: GPS positions
Post by: mackbig on February 02, 2010, 06:51:30 AM
real time or over time?  I think the GPS position would remain constant, but you might need to get a map update from Garmin in a few thousand years to compensate for the 20m drift.

Andrew


Does the Crustal motion affects the GPS position?
Title: Re: GPS positions
Post by: Bushman on February 02, 2010, 08:39:26 AM
IN california GPS is used to measure earthquakes and plate displacement.
Title: Re: GPS positions
Post by: Axelvold on February 02, 2010, 10:27:10 AM
real time or over time?  I think the GPS position would remain constant, but you might need to get a map update from Garmin in a few thousand years to compensate for the 20m drift.

Andrew


Does the Crustal motion affects the GPS position?

It is an interesting fact that approximately 200 million years, we will almost all be neighbors, or at least live on the same continent

(http://apod.nasa.gov/apod/image/0010/PangeaUltima_scotese.jpg)
Title: Re: GPS positions
Post by: Cienega32 on February 02, 2010, 10:51:31 AM
The old "What goes around - comes around" theory.
Title: Re: GPS positions
Post by: SlowModem on February 02, 2010, 10:57:33 AM
It is an interesting fact that approximately 200 million years, we will almost all be neighbors, or at least live on the same continent

When we do, we'll have to get together for a picnic!   =D>
Title: Re: GPS positions
Post by: mackbig on February 02, 2010, 11:14:49 AM
Lars,
I found the same pic this morning looking for a rate of movement.

"Two hundred and fifty million years ago the landmasses of Earth were clustered into one supercontinent dubbed Pangea. As Yogi Berra might say, it looks like "deja vu all over again" as the present-day continents slowly converge during the next 250 million years to form another mega-continent: Pangea Ultima"

http://science.nasa.gov/headlines/y2000/ast06oct_1.htm

Andrew
Title: Re: GPS positions
Post by: racenet on February 02, 2010, 11:16:25 AM
Well now, that will sure as heck take care of the east coast tropical season.  \:D/


Bob
Title: Re: GPS positions
Post by: Axelvold on February 02, 2010, 12:02:53 PM
It is an interesting fact that approximately 200 million years, we will almost all be neighbors, or at least live on the same continent

When we do, we'll have to get together for a picnic!   =D>

The beer is on me  UU