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nafex - Re: [NAFEX] Bare ground is warmer

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  • From: <dmnorton@royaloakfarmorchard.com>
  • To: "North American Fruit Explorers" <nafex@lists.ibiblio.org>
  • Subject: Re: [NAFEX] Bare ground is warmer
  • Date: Fri, 21 Mar 2008 16:10:20 -0600

Steve,
 
There are many types of frost, radiation frost being one of them. Visit  http://www.weathernz.co.nz/FrostInfo.html to see the various conditions that can create the various types of frost.
 
----- Original Message -----
From: Steve
Sent: Thursday, March 20, 2008 8:12 PM
Subject: Re: [NAFEX] Bare ground is warmer

dmnorton@royaloakfarmorchard.com wrote:
The following short article appears in the current Fruit Crop Advisory Team newsletter form Michigan Sate found at http://www.ipm.msu.edu/cat08fruit/f03-18-08.htm.  Thought some of you might find it interesting, especially those of us in the colder zones approaching late frost season.
 
Bare ground is warmer
Mark Longstroth District Extension Fruit Educator

March 18, 2008 -- Spring frosts are a worry for fruit growers. Radiation frosts occur when clear calm conditions during the night allow the ground to cool by radiation to the sky. The cool soil chills the air above it lowering the air temperature.   ............................................


Say what?
He makes it sound like the cold is coming from the ground.
The author obviously knows what he is talking about, judging from the rest of the article. I think he would rewrite that last line above if he was questioned on it.

Steve




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