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Old February 28th 08, 08:24 PM posted to uk.sci.weather
Mike Lewis Mike Lewis is offline
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First recorded activity by Weather-Banter: Aug 2006
Posts: 68
Default Davis VP2 "Seismometer"?

Have moved over to Instromet's optical rain sensor for about a year now ,
but the original Davis VP has been left running. To be honest, I didn't
think to check - but will do so tomorrow.

However, the vibrations were so great here that the chart on our tilting
syphon rainfall recorder became unclipped. We have a clear trace until just
before 0100 followed by nothing! In previous quakes the vibrations have been
picked up by the thermograph and hygrograph - the springed feet on these
seamed to magnify the vibrations. However, both instruments have been
recently replaced with new ones which recorded no effect at all.

Two of our students appeared on Anglia TV that evening describing the cause
of the quake. I wonder if anyone saw them.


Mike Lewis

Pitsford Hall weather station
at Northamptonshire Grammar School

"Steve Pardoe" wrote in message
...
On checking the log today I saw that my VP2 rain gauge had reported a tip
at
about the same time as yesterday morning's earthquake. It's only set for
15
minute downloads, so I can't be sure of the exact time (it's reported as
12:45 am which would really be a bit early). The ISS and rain bucket are
together on a steel pole at the 125cm or so recommended height of the
thermometer. There had been no rain the previous day and the 5" copper
gauge was bone dry at 09Z that morning.

Did anyone else get an unexpected tip at that time?

Steve P
Acton Bridge, Cheshire