[email protected] said: > They also use GPS units for tectonic shift. Put a unit on each plate and > measure the difference between them. When it gets to be a large enough > number, something, somewhere will slip and you will have a quake.
Yes, but that's the DC term. The seismologists and surveyors are real good at using GPS for that. The standard setup involves post processing. I'm not a wizard in that area. (not even close) ---------- Another gadget that I saw was a "two color" laser ranging setup. It was good for 1 mm over 5 km. (ballpark) The second color lets them do temperature corrections similar to the way L1 vs L2 does ionosphere delay corrections. I saw another booth with an antenna picture labeled "12 Mbs". That seemed off scale for seismic data. When I asked he said it was for relaying many local sensors to the central data collection setup. -- These are my opinions. I hate spam. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
