Is it colder at the approach end of the runway?

re spending money to figure that out. I thought that was common
knowledge.

Well, sometimes things that are common knowledge are incorrect.

Jose

Jose, you sound like your buddy MX. When I returned from luch today I
walked
from a concrete parking lot over about 10 feet of grass to enter the
building. I did not need airborne equipment to tell me it was warmer
over
the concrete than it was over the grass.

Well, yeah, but I wouldn't use that to make the decision as to whether
or not huge piles of money should be spent to combat global warming.

I think we need something from traceable, calibrated instruments with
error bars on the numbers, which is what hopefully the airplane is
getting.

--
Jim Pennino

Just to add a little more "food for thought" to the Global Warming issue: I
recently heard another of those poorly attributed sotries on radio. In this
case, it seems that some of the Siberian reporting stations were
abandonned--so the subsequent data was merely compiled without them...

As to the original question, I presume that the road near the approach end
of the runway is simply in a less built-up area that the rest of Chris'
Dad's morning commute. That would be nothing new; there has been a very
noticeable change of temperature in less than a quarter mile--in that type
of transition--for as long as I can remember. With the windows open, you
can suddenly wonder if you should have brought a jacket...

Peter