PSN-L Email List Message

Subject: Re: low pressure tilt?
From: jonfr@.........
Date: Mon, 10 Mar 2008 15:31:50 -0400 (EDT)

Hi Ian.

You actually should record the ocean waves on your lechman in this type of
storm. I don't how you protect your lechman outside, but in this type of
storm not much is needed to break an weak setup. There is a earthquake
recorded near the zero line at the bottom of the image. After that I see
some weather noise as expected until it goes flat. So I must assume that
something has happened to it. Maybe it got flooded by water or the cable
got damged. It is hard to tell, you are going to have to look at it when
the storm dies down.

Jón Frímann.

> Hi,
> we have a record breaking low pressure system over us in Scotland just
> now, 952 mbar or about 28".  My Lehman seems to have gone into limit,
> given the flat line signal coming from it (see
> I wonder if the low pressure has caused the ground to tilt, ever so
> slightly.
> I also wonder if it will come out of limit when the pressure goes up
> again, though hysteresis will probably prevent it.
> Cheers
> Ian
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