Anybody living up that way? Guy I work with remembers it “snowing” ash when he was a little kid last time she blew.
We’re going to have to ask Brian to add an ‘ashfall’ gauge to WD!
A bit off topic but have been looking for a long time for a simple, cheap way to detect and monitor seisimic activity.
Would be nice to have WD and seismic activity program running concurrently.
Any leads?
By the way, after Mt. Pinatoubu erupted, one could see the effect of dust lengthing of sunset times by monitoring sky brightness with one’s wx station.
Brian
Henderson, NC
A bit off topic but have been looking for a long time for a simple, cheap way to detect and monitor seisimic activity.I’ve been tempted to make that my next hobby :lol: There are plenty of amateur resources out there, just google on amateur or homemade seismograph. The problem I see is that the only thing worthwhile for you would be a pretty sensitive instrument for long distance detection, since I don’t believe NC has much local seismic activity.Any leads?
Huge trucks going past my house sometimes cause mini earthquakes, so even an insensitive sensor might be quite interesting here!
It seems that the chief problems in the past involved the electronics part of the data collection process.
Several coil and magnet horizontal and vertical pendulum designs appear on the web for generation of the basic signal earth quake signals. They don’t seem to be limited to just detecting an atom bomb blast in ones back yard. Tried one of the horizontal pendulum designs many years ago with inconclusive results. It seems there was never a decent sized earth quake during the testing period.
It appears to me that the hobby board solar sensor could be pressed into service to collect the data over a one wire network.
The hobby board A/D input covers the 0 - 250 millivolt range. Perhaps one more stage of pre-amplification and some filtering would be required before the hobby board. Not a big deal these days.
Simplistic thinking? Maybe. But then again there may now be $20 gadgets out there capable of detecting micro accelerations.
Next best thing would be to find web based broadcasts of real time lab measurments.
Brian
Henderson, NC
I don’t think the hobby board/one wire would be fast enough. I’m sure some of those designs could be updated, one source of parts could be disk drives, there are very strong magnets and really nice light coils in them, maybe a sound card for the signal processing. But first you have to move to CA :lol: