|
Central Illinois | Thanks for the great posts. I appreciate the link to Dr. Jeff Masters blog.
I don't know what format the NCDC uses for its calculation of temperatures. The point could be well taken that the accuracy of the temperatures may be suspect the further back you go in time. But my guess is that the satellite data we use today is reliable enough to give .1 degree F accuracy. The precision we have now in all scientific applications is amazing. The clocks on our satellites run differently than on earth due in part to a higher velocity relative to the clocks on earth (as predicted by Albert Einstein). These have to be adjusted daily to prevent the drift that would make GPS worthless. The satellite clocks maintain an accuracy of 50 nanoseconds (a nanosecond is one billionth of a second).
| |
|
Where are the predicted hurricanes?
