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Post by lloyd on Apr 29, 2008 8:18:48 GMT -5
It wouldn't be overly hard to make loggers, just take some fiddling like figuring out how batteries behave at low temperatures, etc.
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Post by brian on Apr 29, 2008 15:45:17 GMT -5
Hi Syble, I see no model number so I guess the Hobo Temp must describe it in full. It was copyright 1996 by Onset Computer Corporation. They were about $50 each back then. If you can find them used at a lower price I would spring for some, let me know how many and the bid! Yes more efficient packaging is possible. Lloyd I wouldn't know how to build one, I jokingly mentioned I know more about engineering than plants but I did flunk second year.. Daniello if I get a bunch you're in too.
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Post by brian on Apr 29, 2008 15:52:37 GMT -5
This is a logger and the jar I use to seal it in. The jar is embedded in the bog with the top flush with the ground. The duct taped foil prevents solar heating if there is no cover.
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Post by purpman on Apr 30, 2008 8:16:53 GMT -5
Brian,
I'd be interested in writing an article with you. Maybe after next winter and you have more data, we can start getting one together. CPN is always looking for stuff like this. In the meantimes, drop me a PM.
Thanks purpman
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Post by eql on Apr 30, 2008 8:33:39 GMT -5
hey, just curious... your snow measure.. is that amount of snow on the ground? in cm? in "?
thanks, *EQL*
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Post by tom on Apr 30, 2008 9:40:05 GMT -5
it could be very interesting indeed, especially if you can correlate a survival rate for a species X or a group from a genus with the temp/snow cover/use of mulch, etc.
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Post by brian on Apr 30, 2008 15:51:16 GMT -5
Purpman I'll PM. EQL, its cm snow existing on the ground. I get it from the nearest Climate Canada station that measures it so it is an approximation of what you have over your bog. They hang an ultrasonic rangefinder at a fixed height in an appropriate area. It gives off a little click noise every few minutes and times the echo return from the ground, presumably corrected with the met station data of temp and pressure. I've seen problems with summertime data, weeds grow and the next thing you know the data shows three feet of "snow" in July.. but it works well in winter. Tom, thats exactly what I would eventually like to see! We need more loggers (I can fund to a point), planning, and a willingness to take chances with some species to learn what they do not like. I hope we can come up with ideas to coordinate projects over the summer.
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Post by jonnybee7 on Sept 25, 2008 21:25:43 GMT -5
Seeing as winter is fast approaching, I'm wondering Brian, if you're still in the mood for some datalogging. The little plantls have been busy growing in my bog all summer and are ready to experience a good 'ol manitoba winter(including some VFT's that I'm hoping will make it, but am not expecting them to). Send me a PM if you're up for it.
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Post by brian on Sept 28, 2008 17:11:08 GMT -5
I'd really like to but I lost a couple last winter, so the project is on hold for now
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