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THOSE CLIMATE DEL BOYS

By Pete Moore On June 29th, 2019

This week’s climate landmark is the “record” high temperature in France. The southern village of Gallargues-le-Montueux reported 45.9C (114.6F) on Thursday, beating the previous record by a whopping 1.8C. That’s a margin usually put down to stimulants. And that’s what we have in this case. This is the weather station in Gallargues-le-Montueux (more images here). They’ve put it on a terracotta roof, which makes a change from the usual end-of-a-runway location, but terracotta!

Fired clay has been used to tile roofs for thousands of years because it absorbs heat and radiates it back, keeping the house below cool. Here it’s radiating three feet up to the monitoring equipment. I don’t blame the French. They’re a slapdash race. Convenience always trumps doing the job right with them. But the climate crowd ought to know better. Maybe they do. It wouldn’t be the first time they’ve cooked the temperature books. So I have no doubt that it was a sizzler this week, but it wasn’t a record.

10 Responses to “THOSE CLIMATE DEL BOYS”

  1. //because it absorbs heat and radiates it back//

    How can it both absorb heat and radiat it back, for God’s sake.

    Nothing absorbs heat. The same amount of infrared rays hit every surface, irrespective of the surface material.

  2. Noel, touch it!

  3. Nothing absorbs heat?

    Nothing becomes hotter as it’s heated?

  4. “How can it both absorb heat and radiate it back, for God’s sake.

    http://physics.bu.edu/~redner/211-sp06/class23/class23_transfer.html

    “The best absorbers are also the best emitters. Black objects heat up faster than shiny ones, but they cool down faster too. “

  5. Pete Moore: “This is the weather station in Gallargues-le-Montueux”

    Anthony Watts covered this at great length years ago on his blog Whatts up with that during the University of East Anglia climate fraud scandal.

    Noel:”How can it both absorb heat and radiate it back, ”

    If an object is in the path of a source of radiant heat ( the Sun ), it will under certain conditions absorb heat, and as that object heats up, will start to radiate heat until it reaches an equilibrium where the radiant heat received from the heat source is equal to the heat dissipated by radiation, convection, conduction*.

    Another object ( the temperature measuring station, for example ) in front of the first object the terracotta roof tiles, will now be subject to two heat sources. From the direct radiation of the original heat source (the Sun) and the radiated heat source of the hot terracotta roof tiles. This has the effect of elevating the measured heat received by the temperature sensor, giving an incorrect elevated reading.

    That’s kind of basic physics.

    *Terracotta tiles are not very good at conduction. So to cool off in the direct sun it can only radiate or convict the heat away from its surface. The other side of the terracotta tile – inside the roof – will be significantly cooler than the top side.

  6. That’s kind of basic physics.

    Hmmm.

    You’ll note what is being measured here is NOT total heat generated, but maximum temperature.

    There may be a lot of heat radiated off the tiles or not, I don’t care… because it doesn’t matter. No amount of reflected heat is going to push the thermometer higher than the actual background temperature.

    Can anyone explain how it could?!?

  7. Reflected heat from tiles… I’m obviously excluding reflected heat from concentrated mirrors obviously.

  8. Reflected heat on roofs can reach 150 degrees. That’s why newer homes have heat barriers in the attics. Speaking of attics, they can get hotter than the ambient temperature as well.

  9. Charles

    It’s 101° temperature in El Paso right now, so I guess this would be your subject

  10. If I was 30 years younger I would take a reading on my roof. I bet it’s a lot higher than 101!