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Old August 23rd 07, 05:47 PM posted to sci.geo.meteorology
Bill Habr Bill Habr is offline
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First recorded activity by Weather-Banter: Sep 2005
Posts: 123
Default How did they measure temps in the early 1900s??


"Crackles McFarly" wrote in message
...
People keep saying we're living in the "warmest" period but we measure
temps, and other things, with very sophisticated devices compared to
those times in the early 1900s.

This isn't mentioned or discussed because you'd see clearly that those
temps in the early 1900s were likely far far warmer than has been
recorded, and damn more hotter than NOW.


All the following are meantioned and discussed:

By the early 1900s the general method for measuring temperature and for eliminating biases
was understood and standard were being set. For example, the use of Stevenson Screens, the
height of the measuring instrument and placement of the equipment. Various thermometers
when calibrated every six months or so are accurate enough for climate change data.

Generally speaking a change in the type of temperature sensor means data are then
adjusted to take care of any bias by the change.




It's more lies on top of lies already told.

Once all the truth about so-called Global Warming is know we will all
be spending 10-20% more in taxes and greenhouse-surcharges.

If you think we have a lot of poor now then you haven't seen nothing
yet. GreenHeads will take the middle-class into working poor and
working poor straight to poverty. But we all need to remember it's
because we all got to pay a little, like the rich who won't notice it
but all us millions will notice it.

Liberalism - The idea that the only way to fix poverty is for everyone
to be poor so they understand it.