Barry-
    Check out these files:

ftp://groundmotion.cr.usgs.gov/PSN/20000316/PLOT0018.GIF
    Acceleration.
    N.Calif event recorded by Larry's accelerometer in Redwood City.
        (error in annotation indicates velocity: CM/S)

ftp://groundmotion.cr.usgs.gov/PSN/20000316/PLOT0019.GIF
    Velocity.
    Same as above, integrated to velocity
        (error in annotation indicates displacement: CM)

ftp://groundmotion.cr.usgs.gov/PSN/20000316/PLOT0020.GIF
    Velocity.
   Same as above, integrated to velocity, and high-passed at 0.01 Hz
        (error in annotation indicates displacement: CM)

-Edward

barry lotz wrote:

>  Hi
>     I've uploaded a new event file for a small vertical "strong motion"
> accelerometer. I'm not to familiar with acceleration recording accept
> that I realize the frequency content is a higher. I increased my sample
> rate for the Lehman and this sensor to 50 hz. I was surprised to get
> little long period content in this  recording. Is this common for
> accelerations? . . .

--
Edward Cranswick                Tel: 303-273-8609
US Geological Survey, MS 966    Fax: 303-273-8600
PO Box 25046, Federal Center    cranswick@........
Denver, CO 80225-0046  USA      E.M. Forster said, "Only connect".


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