RE: data offer
- To: "'pumpkins@mallorn.com'" <pumpkins@mallorn.com>
- Subject: RE: data offer
- From: "* D* G* <D*@PSS.Boeing.com>
- Date: Thu, 28 May 1998 04:41:45 -0700
> Date: Wed, 27 May 1998 13:18:46 -0700
> From: Dan Shapiro <dgs@leland.stanford.edu>
> Subject: data offer
>
> After reading the recent posts about ideal garden conditions I
> realized I
> could make an offer to the list: since I'm already installing sensors
> for
> a computer controlled watering system, I can make the data logs
> available
> if people are interested. Right now, I am set up to record soil
> moisture
> content, air humidity and air temperature pretty much continuously,
> plus a
> log of the watering actions I take. I'll be measuring pumpkin size
> manually, every few days.
>
> The data doesn't have to stop there though, since I can add more
> sensors.
> So what data would people like to see?
>
> Dan Shapiro
>
A couple of years ago, I wanted to understand the thermodynamics of heat
transfer in soil with water. In my research, all I could do is find a
book on thermodynamics of heat transfer in soil via an electrical
source.
I notice all these big hitters apply a warm water source, but really how
far will this applied water temperature travel at an certain given
temperature day? Yes, it would go farther in the CA areas, but here in
the PNW with outside temps in the 70-80 degrees, I assume the
temperature of the water will drop to the surrounding soil temp in 5
inches in travel.
Duncan
> -
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