Category Archives: Science

Sinkholes Dot the Landscape

Sinkholes are numerous on the karst landscape of the Ozarks, but are often overlooked. After a large rainfall event, sinkholes throughout the area temporarily fill up with water and become ponds. During most events, falling rain percolates through the karst system in these various sinkholes quickly enough that water doesn’t accumulate above the surface. With at least 7″ of rain over 48 hours, there are plenty of sinkholes that cannot drain quickly enough. All of these photos are between Pearl Creek Farm and Cotner’s Corner (US 160 and MO 123 junction).

MO 123 Sinkhole Pond
This sinkhole is bisected by MO 123 just north of the road to Cave Springs. The water here just sits until the underground drainage can catch up from all the rain.

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Weather Observations at Pearl Creek Farm

I love data. It turns out there’s a lot to track around the farm and I keep a variety of databases to do the heavy lifting for me. My database of choice is PostgreSQL, a poster child for open source software, which probably means nothing unless you’re a geek like me. This post is the first in a series that shows the various ways that we do science at Pearl Creek Farm!

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Well, that didn’t last long

Although Sunday night was supposed to be as low as it was going to get, it actually got quite a bit colder on Monday night. Fortunately, the temperature didn’t get much colder than this during the overnight hours. In fact, it warmed up and we woke up to a balmy 2oF above zero!

I’m hoping this “polar vortex” scoots on out of here for the rest of the winter. I think we’ve all had enough of it.

Thermometer showing minimum temperature from last night (-9.4oF).
Thermometer showing minimum temperature from last night (-9.4oF).