Monthly Archives: March 2017

Author: Dr. Michael Chase “When breakpoints are removed, the entire record prior to the breakpoint is adjusted up or down…” Source: http://berkeleyearth.org/understanding-adjustments-temperature-data/ Many people suspect that there are inaccuracies in the major homogenisations of instrumental temperature records. This article asserts … Continue reading →

Author: Dr. Michael Chase Photo above: Kerang, Victoria, circa 1930 ACORN-SAT is the outcome of a “system” for detection and correction of non-climatic influences on surface air temperature data recorded in Australia. Previous posts have dealt with errors in the … Continue reading →

Author: Dr. Michael Chase A recent post dealt with the flaw in ACORN-SAT that it makes the erroneous assumption that all step changes in temperature arise from persistent non-climatic influences. This post illustrates a potential “false alarm” problem with the … Continue reading →

Photo above: Kalgoorlie, Western Australia, circa 1930 Author: Dr. Michael Chase This post looks at monthly averages of daily maximum temperatures recorded at Kalgoorlie, and surrounding areas, in the inter-war years of 1920-40, during which ACORN-SAT makes two adjustments. The … Continue reading →

Author: Dr. Michael Chase “When breakpoints are removed, the entire record prior to the breakpoint is adjusted up or down depending on the size and direction of the breakpoint.” Extract above from: http://berkeleyearth.org/understanding-adjustments-temperature-data/ Temperature measurements have two classes of non-climatic … Continue reading →

Author: Dr. Michael Chase Source of the figure above: http://www.bom.gov.au/climate/change/#tabs=Tracker&tracker=timeseries Summary There is considerable climate distortion in the ACORN-SAT version of surface air temperatures of Australia from 1910 to present, with most of the distortion in the first half of … Continue reading →