The Wacky World of Weather Stations: No. 74- Deniliquin (NSW)

Please refer back to my first post for site specifications.

Station: Deniliquin Airport 74258

Opened: 1997

Daily Temperature data from: 1997

Data used to adjust Acorn sites at: Rutherglen, Mildura.

Location:   Co-ordinates  -35.5575  144.9458

Deniliquin map

About 600km south-west of Sydney and 250km north of Melbourne.

BOM site plan 2016:

Deniliquin plan2016

Wheat fields again- varying from bare ground when sprayed out, to lush and growing fast, to 60cm at maturity (September- October).   Other crops will be different.  The surrounding vegetation is always changing, so the instrument enclosure is rarely representative.  Satellite images show the surrounding farm land.

2019 Google satellite image:

Deniliquin aerial

And a wider view:

Deniliquin wider

But that is not the only problem, as the 2012 site plan shows:

Deniliquin plan2012

The screen is aligned to magnetic north, not True north- an elementary mistake, so the sun’s rays will strike at different angles to the standard throughout the day and seasons, and also winds will pass through the screen at different angles, so temperature will not be reliable.

And this is an ACORN station!

This station is non-compliant, with temperatures reported at Latest Weather Observations and used to adjust data at Acorn sites.

FAIL

Percentage of all sites not compliant: 10.22%

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6 Responses to “The Wacky World of Weather Stations: No. 74- Deniliquin (NSW)”

  1. Bill in Oz Says:

    This BOM weather station is on an AIRPORT !
    Why i there wheat being grown there to interfere with the weather station ?

    Deniliquin has been pretty dry the past 18 months. I ind this perplexing.

    Good pick up re the screen not being aligned with true North.

  2. Bill in Oz Says:

    Despite being non compliant with BOM’s guidelines ( or maybe because of it ) BOM’s weather station at Deniliquin has just registered a coldest August for decades. And so have BOM stations in Victoria including Rutherglen.

    https://electroverse.net/victoria-experiences-record-cold-august-multiple-sites-average-their-coldest-month-ever-looming-grand-solar-minimum/

  3. Australia's Wacky Weather Stations: Final Summary | kenskingdom Says:

    […] Deniliquin […]

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