[time-nuts] GPS, USGS Early Earthquake Warning

[Hal Murray]

> The quake talk was not on line so I watched the one on Climate Change and
> it's impact on N. California.  Interesting,  but no human impact data, only
> wildlife.

It's up now.
  http://online.wr.usgs.gov/calendar/2012/apr12.html

For a good time sink, my favorite talk was March 2011:
  Unraveling the Mystery of Avian Navigation
  http://online.wr.usgs.gov/calendar/2011/mar11.html
A little more text back at:
  http://online.wr.usgs.gov/calendar/2011.html

For anybody in the Silicon Valley area, their open house is May 19-20.  It's kid friendly, both big kids and little kids.  You get to talk to the people who are actually doing the work.  They are happy with geeky questions.

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Back to somewhat time-nutty stuff...

Does anybody understand how they are using GPS and/or have performance numbers?

They don't need the actual position (DC), just the changes in position.  They need it now.  They can't wait for post processing.  I'm not sure how much accuracy they need.  I'd guess in the cm range.

(Maybe I can learn more at the open house.)



-- 
These are my opinions, not necessarily my employer's.  I hate spam.