The BoM lets a glaring 10 degree error into their AWAP database

This anomaly map is distorted by the minimum temperature at Bedourie in SW Queensland being recorded as 32° instead of the probably correct ~22. Taxpayers might expect that with all the BoM expertise and funding that they would have software to check for outlier numbers.

5 thoughts on “The BoM lets a glaring 10 degree error into their AWAP database”

  1. Outliers appear to be a common thing. Over recent months I have been watching out for Broome’s maximum temperature each day. Normally a range of barely 0.1 to 0.3C range in the middle of the day over a few hours, is punctuated by a spike of from nearly 1C up to 3C, outside one of the 30 minute periods of the data on Broome Observations page. www.bom.gov.au/products/IDW60801/IDW60801.94203.shtml
    For example, today’s maximum of 33C is just 2 minutes after the half hour when the temp was 32.2C. That’s very close to the time each day of jet aircraft activity on the runway. Two flights were scheduled to leave when the maximum temp was recorded.

  2. I think that the BOM is not at all concerned with the slipping-in of odd outliers like this very gross one, on the basis that no one will ever notice it, and the overall effect will be to provide evidence of Global Warming. They have probably scoured the early pre-1945 records to erase anything similar there. If this particular outlier was a mountain, it would be visible from Sydney!

  3. “Taxpayers might expect that with all the BoM expertise and funding that they would have software to check for outlier numbers.”

    Quite so. They could start by having the programme check that the minimum temperature is no higher than the temperature at 9 am on the same day – which happens to be 27 in this case – see the link you give to Bedourie.

    Another useful cutting-edge, high-tech tip would be to have someone log on to this site every few days, make a note of the latest ballsups identified, and fix them. I notice Bedourie is still wrong today…

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