[time-nuts] Atomic clocks could be used to monitor volcanoes and predict eruptions

[Brooke Clarke]

Hi:

Changes in gravity are detected by Cs clock rate changes using fiber optic time transfer to other stable clocks.
http://www.gizmag.com/atomic-clocks-volcano-monitoring/38251/?

Monitoring volcanoes with ground-based atomic clocks
http://www.mediadesk.uzh.ch/articles/2015/vulkane-mit-atomuhren-ueberwachen_en.html

Atomic clocks as a tool to monitor vertical surface motion
"Atomic clock technology is advancing rapidly, now reaching stabilities of Δf/f∼10−18, which corresponds to resolving 
1cm in equivalent geoid height over an integration timescale of about 7 hours. At this level of performance, 
ground-based atomic clock networks emerge as a tool for monitoring a variety of geophysical processes by directly 
measuring changes in the gravitational potential."
http://arxiv.org/abs/1506.02457
Full article:
http://arxiv.org/pdf/1506.02457v2

By combining the clock and a gravity meter the Love numbers for a specific location can be found.  That needs to be done 
also at the reference clock location.

-- 
Mail_Attachment --
Have Fun,

Brooke Clarke
http://www.PRC68.com
http://www.end2partygovernment.com/2012Issues.html
http://www.prc68.com/I/DietNutrition.html