[email protected] said: > I moved to Boulder CO a few months ago. The âcuriosityâ is to determine > the position of two antennas at either end of my house and monitor it over > time, with the idea that one could see plate movement in 3 dimensions plus > rotation around the axes.
How much does Boulder move? I'd guess not much so measuring motion will be tough. You could try to get a lower limit on the speed. Looks like that part of the country is not interesting to the USGS: https://earthquake.usgs.gov/monitoring/gps Ballpark numbers. With a good setup, GPS gives location to about 1 mm. I live a few miles from the San Andreas fault system. It is shifting about as fast as your fingernails grow, roughly an inch per year. Measuring rotation will be tough if your 2 stations are only 100 ft apart. Do you have a friend 1, 10, or 100 miles away? PS: Make sure that your antenna mounts are sturdy. You don't want them drifting as the house ages or you bump into them. ---------- There is a major USGS campus on the Boulder side of Denver. You might wander down there and ask around to see if you can find anybody familiar with either GPS or earthquakes. Or try their web pages. There is probably a public information contact. ---------- >From a USGS talk tonight on Sea Level Rise. California is rising about 2 mm per year. Sea level is rising about 3 mm per year. Net is 1. East coast is sinking about 3 mm per year. (Major risk is surge and waves from hurricanes.) -- These are my opinions. I hate spam.
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