Archive for September 1st, 2019

The Wacky World of Weather Stations: No. 67- Warra (Tas)

September 1, 2019

BillinOz has prompted me to go back and check this site in Tasmania which I had overlooked.  Tony Heller noticed some strange temperatures here.

Please refer back to my first post for site specifications.

Station: Warra 97024

Opened: 2004

Daily Temperature data from: 2004

Data used to adjust Acorn sites at:  —

Location: Co-ordinates   -43.0609 146.7040

Warra map

About 50km south-west of Hobart.

BOM site plan 2016:

Warra plan 2016

2019 Google satellite image:

Warra aerial

(The screen is in the small red circle.)

A wider view:

Warra wider

Warra is in an area of forest that has been clear-felled for timber.  There are bare patches of ground, stumps and logs, and areas of rapidly growing regrowth.  The area surrounding this station is always changing, and the high temperatures Tony Heller found may possibly have been due to burning off.  The BOM plans from 2004, 2011, and 2014 show how the eucalypt saplings have grown (and compare with the 2016 heights of 3-4 metres):

Warra plan 2004

Warra plan 2011

Warra plan 2014

From 1-2m to 4-7m in 10 years.  Gum tree saplings love a clearing caused by cutting or fire.  Apart from the gravel road right beside the screen, the site has been changing over the past 15 years, and in any case saplings “<3m” inside the 20 metre rings are hardly vegetation trimmed to a few centimetres.

This station is not compliant, with temperatures reported at Latest Weather Observations but not used to adjust data at Acorn sites.

FAIL

The Wacky World of Weather Stations: No. 66- Dunedoo (NSW)

September 1, 2019

Please refer back to my first post for site specifications.

Station: Dunedoo 64009

Opened: 1912

Daily Temperature data from: 1965

Data used to adjust Acorn sites at:  Walgett, Dubbo, Scone.

Location: Co-ordinates   -32.0165 149.3956

Dunedoo map

About 270km north-north-west of Sydney.

BOM site plan 2013:

Dunedoo plan2013

 

2019 Google satellite image:

Dunedoo aerial(The screen is in the small red circle.)

Google street view 2010:

Dunedoo street2008

Close to buildings only a few metres away, behind a high fence, beside a dirt driveway and close to a bitumen road.

This station is not compliant, with temperatures reported at Latest Weather Observations and used to adjust data at Acorn sites.

FAIL