Lance Pidgeon has produced these “screenshot” Youtube videos where he takes apart BoM maps – enjoy. Daft junk maps from the Australian Bureau of Meteorology. This first video shows just how basic simple, obvious and indefensible some of the mistakes are. If you ever wondered about the climate data you see from the Aussie Government websites adding up? Primary school math is all you need to see it sometimes does not! Part 1 takes you back to the November 1925 maximum anomaly map which has a prominent peak bullseye anomaly in western South Australia – but the daily max anomaly maps show no sign of this as you click through from the 1st to the 30th. Obviously the BoM data behind these maps is not worth a cupful of warm spit. Enjoy Lance’s video. Part 1 — Part 2 begins to show how the errors seen in part one are not a one off but that the old temperature data maps are riddled with silly errors.Part2 — Part 3 — Part 3 Looks at claims about the QA process and how it has failed. Part 3 also shows the problems are not confined to just one part of the country.Part4 — Part 4 Road tests two claims from the BoM. One about estimation in data sparse areas and one about copying off some one who looks like they know what they are doing (using worlds best practice).Part 5 — Part 5 After the problems caused by data sparseness in the previous video looks at an example of missing data. It becomes obvious that missing old records have a perversion effect that the BoM is aware of but does not seem to have spent enough effort fixing.Part 6. Part 6 looks at a mystery annual square wave pattern of monthy steps in cycles that create fake colour data on the maps instead of a grey or no data indication . The square waves seem to have infected nearly all of the ACORN numerology.