Test Driving the Solar Notch-Delay Model - DISCLAIMER: There are still many unanswered questions about this model. I provide this essay for the purposes of discussion, but I give no pro or con endor...
2 hours ago
Although GISS can truthfully say they have not adjusted the GHCN data, the splicing of the last 6 years of the Post Office dataset to the warmer Gladstone Radar leads to a trend of 1.7 degrees Celsius per Century.Ken is a retired school headmaster and his blog is concentrating on graphical analysis of temperature data relating to Australian towns and cities.
I have shown three possible options for more appropriate adjustments to combine all temperatures at the one site. Of these, the highest trend is about 1.5 degrees, which is close to the trend (1.4 degrees) of the nearest rural sites. Examination of these sites shows that their data is of questionable quality. The second option produces a trend of 0.9 degrees, and the third and (in my opinion) best option, 0.7 degrees. The average trend of the 5 nearest long-record rural sites (0.8 degrees) is between these last two options and so matches well. Nearby cities of Rockhampton and Bundaberg show adjusted trends of about 0.7 and 0.5 degrees respectively, and Maryborough, ignored by GHCN, shows a trend of 0.4 degrees.