Sentences with phrase «data over the last few centuries»
It appears that Ghil, and others specifically warn against the use of MEM and temperature data: «Instrumental temperature data over the last few centuries do not seem, for instance, to determine sufficiently well the behavior of global or local temperatures to permit a reliable climate forecast on the decadal timescale by this SSA - MEM method.»
http://www.realclimate.org/ Not exact matches
If the data in all three series has dramatically spiralled away from the instrumental record over the last few decades, it can not * possibly * be reasonable to claim an accuracy of 0.1 degC two centuries ago, when the instrumental records basically did not exist!