Summary of GHCN Adjustment-Model Effects on Temperature Data Guest essay by John Goetz As the debate over whether or not this year will be the hottest year ever burns on, it is worth revisiting a large part of the data used to make this determination: GHCN v3. The charts in this post use the dataset…
Apologies to singer Tony Bennett for the title. Our own “Charles the moderator” writes in with this curious picture from Weather Underground showing downtown San Francisco at about 2:15PM September 8th, 2015. The disparity of temperature just a few blocks away is quite stunning. In the two temperatures circled in the downtown area yesterday there is…
Every once in a while a new reporter arrives onto the climate scene that immediately thinks they know everything there is to know about climate, and therefore doesn’t need to interview the people he/she writes about, ask questions of them, research the facts, or get any other points of view to reflect balance whatsoever, because…
As readers know, the recent paper Karl et al. 2015, written by the head of the National Climatic Data Center now NCEI, went to great lengths to try to erase “the pause” from the surface temperature record using a series of adjustments. Those adjustments are deemed unacceptable and criticized by some climate scientists, such as…
Guest Post by John Goetz Adjustments to temperature data continue to receive attention in the mainstream media and science blogs. Zeke Hausfather wrote an instructive post on the Climate Etc. blog last month explaining the rationale behind the Time of Observation (TOBS) adjustment. Mr. Hausfather pointed to the U.S. Climate Reference Network (CRN) as a…
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Guest essay by Bob Koss Being an old retired guy with time on my hands, this summer I decided to find out just how well GHCN-Monthly follows their own methodology in regard to data collection. What I discovered is, they don’t. My remarks below relate strictly to the GHCN monthly unadjusted dataset on which their…
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From Jo Nova: BOM finally explains! Cooling changed to warming trends because stations “might” have moved! It’s the news you’ve been waiting years to hear! Finally we find out the exact details of why the BOM changed two of their best long term sites from cooling trends to warming trends. The massive inexplicable adjustments like…
