Like what you've read?

On Line Opinion is the only Australian site where you get all sides of the story. We don't
charge, but we need your support. Heres how you can help.

  • Advertise

    We have a monthly audience of 70,000 and advertising packages from $200 a month.

  • Volunteer

    We always need commissioning editors and sub-editors.

  • Contribute

    Got something to say? Submit an essay.


 The National Forum   Donate   Your Account   On Line Opinion   Forum   Blogs   Polling   About   
On Line Opinion logo ON LINE OPINION - Australia's e-journal of social and political debate

Subscribe!
Subscribe





On Line Opinion is a not-for-profit publication and relies on the generosity of its sponsors, editors and contributors. If you would like to help, contact us.
___________

Syndicate
RSS/XML


RSS 2.0

Homogenised temperatures, and planning for bushfires

By Jennifer Marohasy - posted Thursday, 1 September 2016


Most peculiarly, according to the Bureau’s own policy, in accordance with world’s best practice as recommended by the World Meteorological Organisation, any significant site relocation should result in a new site number. Yet Rutherglen has always been referred to by a single station number: 082039. This is in contrast, for example, to the nearby location of Deniliquin that was number 074128 when the weather station was at the post office, and number 074258 when it was moved to the airport.

Putting all of this aside, is it reasonable to assume that moving a weather station between paddocks will create a difference of 5.4 °C for 13 January 1939 between the measured and the adjusted values? No, it is not.

Back in 2014, then Prime Minister Tony Abbott was right to suggest an inquiry into the Bureau of Meteorology and this revisionist approach to the historical temperature record.  Greg Hunt, Environment Minister at the time, apparently “killed” the idea during these discussions in cabinet claiming confidence in the Bureau by the Australian public was paramount – especially so we (the public) would heed bushfire warning. But how reliable are these warning – and exactly which historical record are they based on?

Advertisement

Postscript
More information on temperature trends at Rutherglen is detailed in Marohasy, J., Temperature change at Rutherglen in south-east Australia, New Climate (2016).
The difference of 5.4 °C between the adjusted and raw values on 13 January 1939 can be verified by scrutinising the ACORN-SAT versus CDO/raw daily data for Rutherglen available at the Bureau of Meteorology website online. Specifically the ACORN-SAT TMax for Rutherglen versus the raw TMax for Rutherglen – scroll to 13 January 1939.

 

  1. Pages:
  2. 1
  3. Page 2
  4. All


Discuss in our Forums

See what other readers are saying about this article!

Click here to read & post comments.

34 posts so far.

Share this:
reddit this reddit thisbookmark with del.icio.us Del.icio.usdigg thisseed newsvineSeed NewsvineStumbleUpon StumbleUponsubmit to propellerkwoff it

About the Author

Jennifer Marohasy is a senior fellow with the Institute for Public Affairs.

Other articles by this Author

All articles by Jennifer Marohasy

Creative Commons LicenseThis work is licensed under a Creative Commons License.

Photo of Jennifer Marohasy
Article Tools
Comment 34 comments
Print Printable version
Subscribe Subscribe
Email Email a friend
Advertisement

About Us Search Discuss Feedback Legals Privacy