So where is the CRN data? That is what we were discussing.
And your latest graph....sure looks like a step change in the late 70's rather than a steady increase. Was there a change in the ocean currents by any chance?
What happens here at at that point in time Ian?
you guys seem to have attention deficit disorder. the original discussion was the CRN temp system that needs no 'adjustments' but has only been operating since 2006. then OR piped up that Alaskan temps would turn the negative CRN trend to positive. no data has been produced for CRN Alaska yet or Hawaii), and I doubt that I will bother to look.
OR's graph of Alaskan temps really does look like a step change, (so does the satellite data at 98), so I opined that ocean currents might shed some light.
the PDO was discovered because salmon like cold water and they were moving away from the Alaskan fisheries in the 80's. I believe that the PDO has significant effect on Alaska's temps. eyeballing the PDO and Alaskan temp graphs seem to show a pretty strong correlation.
then crick comes along. he doesnt talk about CRN, Alaska, or the PDO. he wants to talk about the heavily adjusted global dataset from NASA GISS.