On Mon, 18 Sep 2000 sean@........... wrote: > I have submitted an abstract to the AGU meeting regarding the new dynamic > broadband tiltmeter that senses pure tilt but is not sensitive to horizontal > acceleration as a seismometer is, so it can be used to record and > remove tilt noise from broadband horizontal seismic data. The current > resolution is 8.3 picoradians (10^-12). It readily records such earth tilt > noises as acoustic gravity waves (from storms) at 50 nanoradians (10^-9) > amplitude. (I will post the abstract on m web site later in the week.) > Regards, > Sean-Thomas Sean, This sounds extremely interesting. Is this another affordable instrument like your vertical seis? ****************************************************************************** John Hernlund Department of Earth and Space Sciences University of California, Los Angeles E-mail: hernlund@....... or hernlund@............ WWW: http://www.public.asu.edu/~hernlund/ ****************************************************************************** __________________________________________________________ Public Seismic Network Mailing List (PSN-L)
Larry Cochrane <cochrane@..............>