Thanks to the Claycordian who passed along this important reminder.
When it’s hot outside, the asphalt is even hotter.
If the ground is too hot for your bare feet, then it’s too hot for your dog’s feet.
Please think twice before you take your dog (or any other animal) for a walk this week.
There is no such correlation. Yes, in bright sun asphalt is hot. The air temperature is can be just about anything.
No such correlation?
You do realize that the air is a conductor and pulls/receives heat from the ground (in this case asphalt) just like the air in your oven pulls/recieves heat from the heating element… As the air gets hotter it isn’t able to pull as much and the ground is able to retain more of its heat…? Therefore cold air, cold ashpalt, hot air, hot ashpalt, hotter air, hotter asphalt.
And yes, the asphalt in shade is cooler, but this sign/article is talking about the stuff in the sun.
Fun note, the asphalt in the shade will be made warmer by the air as the opposite effect is happening. Everything tries to maintain a natural equilibrium.
@ERas,
It is an over simplification implying that one can reliably gauge the asphalt pavement temperature merely from ambient air temperature. The temperature of the surface of the asphalt is determined by solving the thermodynamic equations for heat flux by conduction (primarily into and out of the earth), convection (related to wind velocity and air temperature) and radiation (is there sun?).
Yes, you could do the equations and get the thermal measurement of the surface of the asphalt to a marginal degree of error, or you could measure it physically and come to the conclusion that the tempurature in the sun generally correlate to the values of the sign…
But lets remember that your initial argument was that there is NO correlation… which is wildy incorrect.
Dug out old Iphone with FLIR attachment, asphalt temperature 152 degrees F.
Quarantine, stay at home orders for all dogs until the temp drops below 75!
Oh yea drops below 75, damn my dog would never get walked so that’ll never happen. As long as sun ain’t hitting what we’re walking on we don’t care what the damn temperature is.
I give the walking surface the hand test if I can lay my palms on the surface for longer than 5 seconds then it’s fine.
I feel like the old “Dancing Chickens” I saw as a kid at Knott’s Berry Farm in the 60s. Never could figure out how they trained chickens to “dance”, cruel but entertaining, don’t think that would “fly” now days.