Thread: Outdoor thermometer placement
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dpb dpb is offline
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Default Outdoor thermometer placement
On 12/28/2015 1:24 PM, wrote:
On Mon, 28 Dec 2015 10:54:56 -0700, Don Y
....

[Someone with the sort of interest I'm concerned about will be
willing to sort out *proper* placement of a sensor instead of
just relying on what's convenient]
Have you tried the chunk of 6 inch plastic pipe??
You get a chimey effect that moves the sir through the pipe when the
sun shines - negating any radiant heat absoption, you get full time
shade, and no heat entrapment. Put it on a pole out close to the
trees. It will be about the most accurate temperature record you can
get, across all variables. Mount the temp sensor in the middle of the
pipe. 2 or 3 feet long is adequate - longer won't hurt

The point is that there is no single-point measurement location that
suffices; it depends on the type of event (advection vis a vis
radiation, eg) , whether there is and how heavy an inversion later
exists, and a zillion other details.

It's been studied extensively by all the research organizations in the
citrus-producing areas, both public and private if he'd just make use of
that body of knowledge instead of seemingly thinking he's the first to
have thought of it.

In general, a 6-ft measurement, another at tree-top height and about 40'
if higher than the canopy is generally what is typically done in
commercial groves. How much other detail they use for actual leaf and
bark temperatures and such is mostly dependent upon how valuable the
crop is.

For a hobbyist or noncommercial it likely isn't practical anyway owing
to the cost of the mitigating effects required to do anything effective,
anyway, other than if can cover a few small trees or do a minimal amount
of sprinkling or the like. It's hardly likely the fuel bill for heaters
will make it cost-effective for a homeowner with a few trees unless
they've just got resources to burn (so to speak).

The cost for monitoring these days is pretty much peanuts; it's the
downstream costs that are the killer for anybody except the commercial
grower.

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