Posts Tagged ‘bom’

Australia’s Wacky Weather Stations: Final Summary

January 16, 2020

(Updated 17/01/2020)

Australia, being a wealthy, modern, western nation with a very well-resourced Bureau of Meteorology (BOM), might be expected to have weather stations that set a high standard of siting and reliability.

Unfortunately, that is far from the case.  This pie chart shows the percentage of weather stations that comply with siting specifications, don’t meet those specifications, or are “marginal”- not fully compliant but not as bad as some.

Nearly half do not comply with siting guidelines as outlined in Observation Specification No. 2013.1 (drafted in January 1997).

Less than a third comply and may be relied on (assuming that the screen and the immediate area around it is kept well maintained with a few centimetres of natural grass, and the surrounding environment does not change).

The marginal stations may or may not be reliable.

In Australia it is apparently quite OK to have thermometers beside houses, in bitumen carparks, in a vegetable garden surrounded by a corrugated iron fence, beside incinerators, behind 6 metre prison walls, beside piles of human excrement, in the middle of a dirt road, on the roof of a wharf shed, beside a multi-lane highway, shaded by trees, or in screens that are covered in spider webs, invaded by mud wasps, or used by cattle as a back-scratcher.  The area around the screens can be dusty bare dirt, overgrown with grass and weeds, or sprayed out to bare ground.

This map, thanks to Lance Pidgeon, shows the locations of weather stations audited.

As you can see, removing non-compliant and marginal sites leaves very large gaps.

Australia’s climate analysis is based on 112 stations in the ACORN-SAT network.  I surveyed 111 Acorn stations.  (Wittenoom stopped reporting in July 2019 and is now apparently closed).  Here is a pie chart of Acorn station compliance:

Again, thanks to Lance, this is a map of Australian Acorn stations….

…and this map shows the layout of the Acorn network with non-compliant stations removed, leaving marginal and compliant sites.

Only New South Wales has a decent density of compliant sites.  There are huge gaps in Queensland, Western Australia, and South Australia.  No wonder the Bureau is desperately defending their realm!

Here are the non-compliant Acorn sites.

Adelaide (Kent Town)Mackay
Albany AirportMarble Bar
BarcaldineMarree Airport
BridgetownMelbourne (Olympic Park)
CamoowealMerredin
Cape BordaMildura
Cape BrunyMiles
Cape LeeuwinMorawa Airport
Cape MoretonMoruya Heads
Cape OtwayNuriootpa
Charters TowersPoint Perpendicular
Coffs Harbour AirportRichmond (Qld)
Cunderdin AirportRobe
DalwallinuRockhampton
DeniliquinRutherglen
Geraldton AirportScone Airport
GilesSnowtown
Halls CreekSydney – Observatory Hill
HobartTownsville
KalumburuWandering
KerangWilcannia Airport
KyancuttaWilsons Promontory
Larapuna (Eddystone Point)Woomera
LongreachYamba

Summary

Of 666 weather stations I was able to identify and survey, nearly half (328) did not comply with siting specifications.

Less than a third (209) fully comply (assuming that the screens and surroundings are well maintained).

Another 129 are marginal- not fully compliant but not as bad as the non-compliant sites.

48 of the 111 remaining Acorn stations are not compliant, and a further 22 are marginal.

The Bureau of Meteorology starts its climate analysis using Acorn from 1910.  Reasons given are that the network, especially in remote areas, and also Western Australia and Tasmania,  was extremely sparse before this, and except in Queensland and South Australia (where Clement Wragge had instituted Stevenson screens and standardised practises by the mid-1890s) temperature observations and instrument siting were non-standard.  Temperature records before 1910 are not recognised by the Bureau.  For example, the hottest temperature recorded, 53.1C at Cloncurry on 16 January 1889 is discounted as it was not recorded in a Stevenson screen; and the temperature of 51.6C in Bourke on 3 January 1909 is discounted, even though it was in a Stevenson screen.  How can we be any more confident in current temperatures recorded at non-compliant sites?

With only 209 stations of the 666 surveyed fully complying with specifications, doubt must be raised not only about the modern network coverage but also the reliability and comparability of modern and historical temperature records.

The next step:

Over some time, I will be comparing data from several pairs of compliant and non-compliant stations to see if siting has any detectable effect on temperatures recorded.

Appendix:- Background and details of survey: 

In July 2019 I commenced a 6 month long survey of 666 weather stations that currently report temperatures to the Latest Weather Observations pages for each state (also to Climate Data Online and to international weather and climate agencies).  Many are used to make adjustments to Acorn stations. Of the 753 stations listed (and these change from time to time) I was able to identify and examine 666. 

I did not include offshore island territories or islands far distant from the mainland (e.g. Willis island) but islands close to the coast were included.  Other stations not included were those in the National Tidal Centre network, which are located on wharves and breakwaters and have beehive screens instead of Stevenson screens; Lucas Heights nuclear facility; a number of recent defence stations that were impossible to locate; stations in areas where satellite imagery has poor resolution, and a number of sites that have not yet been included in the BOM metadata and thus have no site plans and can’t be located- a good example is Wellcamp Airport in southern Queensland. (See below for the full list.)

The process I used is outlined  in my post “How to check for yourself”.  I also made use of information and photographs supplied by colleagues with local knowledge.

There are 328 examples of stations that are not compliant with specifications, listed by state here.

This is an example of a compliant station:  Amberley AMO  40004 which is an Acorn station.

Google satellite image: 

This is an example of a marginal station:  Nullo Mountain 62100

Google satellite image: 

It has patches of rougher/ longer vegetation nearby and a large tree about 20 metres away.

(And the more I look at marginal sites the more I find that I should really have classified more as not compliant.)

These are the marginal stations (Acorn marked *):

Adelaide AirportMiddle Point
ArmidaleMilingimbi
BatchelorMoomba Airport
Batemans BayMortlake
Bathurst *Moss Vale
Boulia *Mount Boyce
Bourke *Mount Bundey North (Defence)
Bowen Airport AWSMount Crawford
Bradshaw-Angallari Valley (Defence)Mount Ginini
BrisbaneMount Ive
Brisbane Airport *Mount Magnet Airport
BulmanMount Moornapa
Burketown Airport *Mudgee
Cape GrimNambour
Cape SorellNeptune Island
Central Arnhem PlateauNew May Downs
CerberusNgayawili (Elcho Island)
CharltonNgukurr AWS
CombienbarNhill Aerodrome *
CooktownNoarlunga
CoonawarraNoonamah
CootamundraNullo Mountain
Cowley Beach (Defence)Oakey
Cultana (Defence)Oodnadatta *
Darwin Airport *Orbost *
DerbyPalmerville *
Devonport AirportParramatta
Dum In MirriePearce
DwellingupPort Augusta
Eildon Fire TowerPort Fairy
ElliottPortland Airport
Esperance AirportRedland (Alexandra Hills)
Essendon AirportRhyll
Eucla *Sheffield
FingalSheoaks
Forrest *Shepparton
Fowlers GapSt George *
Gabo Island *Stawell
GelantipyStenhouse Bay
Grafton AirportSwan Hill
Grove *Sweers Island
Hamilton IslandSydney Olympic Park
Horn Island *Tabulam
Hume ReservoirTarcoola *
Hunters HillTaree Airport
Jervis Bay AirfieldTemora
JervoisTennant Creek *
kunanyi / Mount WellingtonTerrey Hills
Kununurra AirportThargomindah *
Lake JuliusThe Monument
Lake Macquarie – CooranbongTibooburra Airport *
Lake St ClairTocal
Lancelin (Defence)Townsville Air Weapons Range (Defence)
Launceston Airport *Trepell
Laverton (WA)Tunnack
Legendre IslandTurretfield
Leigh CreekVictor Harbor
Leonora AirportWadeye (Port Keats)
LombadinaWarruwi
LostockWhite Cliffs AWS
Low Head *Windorah
Luncheon HillWoolbrook
Mackay AirportYanakie
McArthur River MineYoung
Melbourne Airport

These are the stations listed in Latest Weather Observations that I did not use (plus offshore island territories). You are welcome to try- let me know if you have any success.

Adele IslandMelville Water
Arlington ReefMiddle Percy Island
Banana BankMount Buller
Barrow IslandMount Bundey South (Defence)
Bedout IslandMount Hope
Bradshaw-Koolendong ValleyMount Hotham Airport
BrewonMount Keith
Broome PortMount Read
Browse IslandMulurulu
Bulga DownsNoona
Burnie PortNorth Head
Busselton JettyNorth Island
Canungra (Defence)Oberon
Cape FergusonOcean Reef
Cape WesselOuter Harbor (Black Pole)
Christmas CreekPaynes Find
Colpoys PointPoint Avoid
CoondewannaPort Kembla Harbour
Croker Island AirportPortland Harbour
Darwin HarbourPuckapunyal-Lyon Hill (Defence)
Degrussa AerodromeRosslyn Bay Harbour
DoonganRowley Shoals
Edi UpperSellicks Hill
Esperance HarbourSmithville
Evans HeadSolomon Airport
Fawkner BeaconSouth Channel Island
Fort DenisonSpitfire Channel
Fortescue Dave ForrestSpring Bay
FrankstonSt Kilda Harbour RMYS
GluepotSwan Island
Gooseberry HillSydney Harbour
Hay PointThevenard Island
Heron IslandThursday Island
Hillarys Point Boat HarbourTownsville – Fanning River (Defence)
Hindmarsh IslandTroughton Island
Inner BeaconUrandangi
Kingfish BVaranus Island
KurnellWarburto Point
Little BayWarburton
LochingtonWattamolla
Low Rocky PointWellcamp Airport
Lucas Heights (ANSTO)West Roebuck
Maatsuyker IslandYampi Sound (Defence)
Maitland Airport

The Wacky World of Weather Stations by State

January 12, 2020

Here are 328 Australian weather stations that are not compliant with Bureau of Meteorology specifications for siting.

Site compliance is important because temperature data from these stations is liberally reported in the media especially if hot or cold records are set. They also contribute to AWAP (the Australian Water Availability Project) and ADAM which produce maps of present and past temperatures. As well, data from these stations is used to homogenise data at stations in Australia’s ACORN-SAT network, which are used for showing trends since 1910. Finally, this data is exported to be used by international databases (GISSCruTem4) for regional and global climate analysis. If the data is affected by site specific factors, e.g being too close to a road, this may affect the quality of the analysis.

I am agnostic as to the overall effect of these poorly sited stations. Maxima at some sites may be artificially low, or minima may be artificially high, and this may vary with seasons and rainfall. Analysis and comparison of temperatures will come later. My focus here is to show the large number of modern stations whose data may be unreliable.

The quality of these non-compliant stations varies. While some are truly horrendous, others are not nearly as bad, but all fail on one or more specifications.

Find your favourite station, click on it, and the link will take you to my assessment of its siting quality. Use the back arrow to return here.

South AustraliaVictoria
Adelaide (SA)Aireys Inlet (Vic)
Andamooka (SA)Ararat (Vic)
Arkaroola (SA)Avalon (Vic)
Cape Borda (SA)Bairnsdale (Vic)
Cape Willoughby (SA)Ben Nevis (Vic)
Cleve (SA)Cape Nelson (Vic)
Cleve Airport (SA)Cape Otway (Vic)
Cummins Airport (SA)Castlemaine (Vic)
Edinburgh (SA)Coldstream (Vic)
Edithburgh (SA)Dartmouth (Vic)
Elliston (SA)Echuca Airport (Vic)
Eudunda (SA)Falls Creek (Vic)
Kadina (SA)Ferny Creek (Vic)
Karoonda (SA)Horsham (Vic)
Keith (SA)Kerang (Vic)
Kimba (SA)Lake Eildon (Vic)
Kingscote (SA)Lakes Entrance (Vic)
Kuitpo (SA)Latrobe Valley  (Vic)
Kyancutta (SA)Longerenong (Vic)
Lameroo (SA)Maryborough (Vic)
Loxton (SA)Melbourne (Vic)
Maitland (SA)Mildura (Vic)
Marree (SA)Moorabbin (Vic)
Meningie (SA)Mount Nowa Nowa (Vic)
Minlaton Aero (SA)Mount William (Vic)
Minnipa (SA)Omeo (Vic)
Mount Barker (SA)Point Hicks (Vic)
Mount Lofty (SA)Redesdale (Vic)
Murray Bridge (SA)Rutherglen (Vic)
Naracoorte (SA)Scoresby (Vic)
Nullarbor (SA)Tatura (Vic)
Nuriootpa (SA)Viewbank (Vic)
Padthaway (SA)Walpeup (Vic)
Pallamana (SA)
Price (SA)Wangaratta (Vic)
Robe (SA)Warracknabeal (Vic)
Roseworthy (SA)Warragul (Vic)
Snowtown (SA)Warrnambool (Vic)
Streaky Bay (SA)Westmere (Vic)
Warooka (SA)Wilsons Promontory (Vic)
Whyalla (SA)Wonthaggi (Vic)
Woomera (SA)
Yongala (SA)Tasmania
Bushy Park (Tas)
Northern TerritoryCape Bruny (Tas)
Black Point (NT)Cape Bruny AWS (Tas)
Centre Island  (NT)Cressy (Tas)
Charles Point (NT)Dover (Tas)
Curtin Springs (NT)Flinders Island Airport (Tas)
Jabiru (NT)Friendly Beaches (Tas)
Kangaroo Flats (NT)Hartz Mountain (Tas)
Kintore (NT)Hobart (Tas)
Kulgera (NT)Lake Leake (Tas)
Lajamanu Airport (NT)Larapuna (Eddystone Pt) (Tas)
Murganella Airstrip (NT)Launceston (Tas)
Pirlangimpi (NT)Marrawah (Tas)
Point Fawcett (NT)Maydena (Tas)
Point Stuart (NT)Orford (Tas)
Territory Grape Farm (NT)Ouse (Tas)
Yulara Airport (NT)Scotts Peak (Tas)
Strahan (Tas)
Warra (Tas)
Wynyard (Tas)
West AustraliaNew South Wales
Albany (WA)Albury (NSW)
Albany Airport (WA)Balranald (NSW)
Argyle (WA)Bankstown (NSW)
Badgingarra (WA)Barraba (NSW)
Barimunya (WA)Bathurst Airport (NSW)
Beverley (WA)Bombala (NSW)
Bickley (WA)Bombala AWS (NSW)
Bidyadanga (WA)Brewarrina (NSW)
Bridgetown (WA)Burrinjuck Dam (NSW)
Busselton (WA)Cape Byron (NSW)
Cape Leeuwin (WA)Cobar Airport (NSW)
Cape Naturaliste (WA)Coffs Harbour (NSW)
Carnamah (WA)Collarenebri (NSW)
Carnegie (WA)Coonabarabran (NSW)
Collie East (WA)Coonabarabran Airport (NSW)
Corrigin (WA)Cowra (NSW)
Cunderdin (WA)Deniliquin (NSW)
Cygnet Bay (WA)Dunedoo (NSW)
Dalwallinu (WA)Forster (NSW)
Denham (WA)Grafton Airport (NSW)
Donnybrook (WA)Green Cape (NSW)
Eyre (WA)Grafton AgRS (NSW)
Geraldton Airport (WA)Griffith (NSW)
Giles (WA)Gulgong (NSW)
Goomalling (WA)Gundagai (NSW)
Gosnells City (WA)Guyra (NSW)
Halls Ck (WA)Hillston (NSW)
Hopetoun North (WA)Holsworthy (Defence) (NSW)
Hyden (WA)Katoomba (NSW)
Jacup (WA)Lake Cargelligo (NSW)
Jarrahwood (WA)Lake Victoria (NSW)
Jurien Bay (WA)Lightning Ridge (NSW)
Kalbarri (WA)Lismore Airport (NSW)
Kalumburu (WA)Mangrove Mountain (NSW)
Karijini North (WA)Menindee (NSW)
Karratha (WA)Merimbula (NSW)
Kellerberrin (WA)Montague Island (NSW)
Lake Grace (WA)Moruya Heads (NSW)
Lancelin (WA)Mount Seaview (NSW)
Leinster (WA)Mungindi  (NSW)
Mandora (WA)Murrurundi (NSW)
Mandurah (WA)Murwillumbah (NSW)
Manjimup (WA)Narooma (NSW)
Marble Bar (WA)Nelson Bay (NSW)
Merredin (WA)Newcastle (NSW)
Millendon (WA)Newcastle Univ. (NSW)
Morawa (WA)Norah Head (NSW)
Mount Elizabeth (WA)Nyngan (NSW)
Mount Barker (WA)Parkes (NSW)
Mullewa (WA)Peak Hill (NSW)
Munglinup West (WA)Penrith (NSW)
Murchison (WA)Perisher Valley (NSW)
Narembeen (WA)Pindari Dam (NSW)
Narrogin (WA)Pooncarrie (NSW)
Newman Aero (WA)Point Perpendicular (NSW)
Northam (WA)Quirindi (NSW)
Ongerup (WA)Scone (NSW)
Pemberton (WA)Singleton (NSW)
Perth Metro (WA)Smoky Cape (NSW)
Pingelly (WA)Springwood (NSW)
Ravensthorpe (WA)Sydney  (NSW)
Red Rocks Point (WA)Sydney Airport (NSW)
Salmon Gums RS (WA)Taralga  (NSW)
Shark Bay Airport (WA)Tenterfield (NSW)
Southern Cross (WA)Thredbo Village (NSW)
Swanbourne (WA)Tocumwal (NSW)
Telfer (WA)Tumbarumba (NSW)
Wagin (WA)Ulladulla (NSW)
Warmun (WA)Wanaaring (NSW)
Wiluna (WA)Wellington (NSW)
Witchcliffe (WA)Wilcannia Airport (NSW)
Wongan Hills (WA)Yamba (NSW)
York (WA)Yanco (NSW)
Wandering (WA)
Queensland
Alva Beach (Qld)Low Isles (Qld)
Applethorpe (Qld)Lucinda (Qld)
Ayr DPI (Qld)Mackay MO (Qld)
Barcaldine (Qld)Mareeba (Qld)
Beaudesert (Qld)Miles (Qld)
Bedourie (Qld)Mitchell (Qld)
Bollon (Qld)Mornington Is Airport (Qld)
Cape Flattery (Qld)Mount Isa  (Qld)
Cape Moreton (Qld)Mount Stuart Defence (Qld)
Camooweal (Qld)Point Lookout (Qld)
Cardwell (Qld)Rainbow Beach (Qld)
Century Mine (Qld)Redcliffe(Qld)
Charters Towers (Qld)Richmond (Qld)
Coconut Island (Qld)Rockhampton (Qld)
Collinsville (Qld)Rolleston (Qld)
Cunnamulla (Qld)Rundle Island (Qld)
Double Island Point (Qld)Sandy Cape (Qld)
Emerald (Qld)Seventeen Seventy (Qld)
Gladstone Airport (Qld)Springsure (Qld)
Gladstone Radar (Qld)Stanthorpe (Qld)
Gold Coast Seaway (Qld)South Johnstone (Qld)
Greenbank (Qld)Sunshine Coast Airport (Qld)
Gympie (Qld)Surat (Qld)
Hervey Bay (Qld)Tambo (Qld)
Ingham (Qld)Taroom (Qld)
Injune (Qld)Tewantin RSL Park (Qld)
Innisfail (Qld)Texas (Qld)
Innisfail Aero (Qld)Tin Can Bay (Qld)
Kowanyama Airport (QLD)Townsville (Qld)
Lady Elliott Island (Qld)Woolshed (Qld)
Logan City (Qld)Yeppoon (Qld)
Longreach (Qld)

The Wacky World of Weather Stations: No. 328- Ferny Creek (Vic)

January 10, 2020

Friday 10/01/2020

Please refer back to my first post for site specifications and to No. 92- Logan City for 2018 specifications.  If you wish to check on this (or any) site for yourself, go to my post on how to check for yourself.

Station: Ferny Creek 86266

Opened: 2011

Daily Temperature data from: 2011

Data used to adjust Acorn sites at: —

Co-ordinates: -37.8748 145.3496

35km east of Melbourne CBD.

BOM site plan 2018:

Google satellite image:

Google ‘street’ view 2019 (photo Glenn Batchelor):

Drone photo:

The screen is on sloping land and is a few metres from shrubs; a 50m tall tree is about 40 metres away.

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

FAIL

Percentage of all sites non-compliant: 49.25%.

That’s it: I think I’ve finished. Next I’ll update the index.

The Wacky World of Weather Stations: No. 327- Lake Grace (WA)

January 10, 2020

Friday 10/01/2020

Please refer back to my first post for site specifications and to No. 92- Logan City for 2018 specifications.  If you wish to check on this (or any) site for yourself, go to my post on how to check for yourself.

Station: Lake Grace 10911

Opened: 1997

Daily Temperature data from: 1997

Data used to adjust Acorn sites at: Esperance

Co-ordinates: -33.1006 118.4647

275km south-east of Perth

BOM site plan 2015:

Google satellite image:

Google street view 2008:

The screen is 15 metres from a bitumen road, 36 metres from a bitumen carpark, and 18 metres from the railway track. It is also close to bare dirt. Further, in 2008, either the area was watered or else the natural grass was worn away or removed to bare dirt to within a few metres.

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 non-compliant: 49.1%.

The Wacky World of Weather Stations: No. 326- Albany Airport (WA)

January 10, 2020

Friday 10/01/2020

Please refer back to my first post for site specifications and to No. 92- Logan City for 2018 specifications.  If you wish to check on this (or any) site for yourself, go to my post on how to check for yourself.

Station: Albany Airport 9999

Opened: 2012

Daily Temperature data from: 2012

Data used to adjust Acorn sites at: —

Co-ordinates: -34.9411 117.8158

380km south-east of Perth

BOM site plan 2011:

Google satellite image:

This Acorn station was established here in 2012, but there have been no site plans since 2011. For a period of time until the grass grew, the enclosure was “sand”- similar to the bare areas beside the concrete path. Like many airports, it is on a raised mound of sand 60cm above the surroundings, so the screen in effect is 1.8 metres above natural ground level.

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

FAIL

Percentage of all sites non-compliant: 48.95%.

The Wacky World of Weather Stations: No. 325- Witchcliffe (WA)

January 9, 2020

Thursday 09/01/2020

Please refer back to my first post for site specifications and to No. 92- Logan City for 2018 specifications.  If you wish to check on this (or any) site for yourself, go to my post on how to check for yourself.

Station: Witchcliffe 9746

Opened: 1999

Daily Temperature data from: 1999

Data used to adjust Acorn sites at: —

Co-ordinates: -34.0281 115.1042

230km south of Perth

BOM site plan 2018:

Google satellite image:

This station is in the middle of a vineyard, surrounded by irrigated grape vines which are periodically pruned then grow luxuriantly to a couple of metres high. The screen will thus be shielded by the vines. See Nuriootpa.

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

FAIL

Percentage of all sites non-compliant: 48.8%.

The Wacky World of Weather Stations: No. 324- Badgingarra (WA)

January 9, 2020

Thursday 09/01/2020

Please refer back to my first post for site specifications and to No. 92- Logan City for 2018 specifications.  If you wish to check on this (or any) site for yourself, go to my post on how to check for yourself.

Station: Badgingarra Research Station 9037

Opened: 1962

Daily Temperature data from: 1965

Data used to adjust Acorn sites at: Morawa

Co-ordinates: -30.3381 115.5394

180km north of Perth

BOM site plan 2013:

Google satellite image:

An ideal rural location? Not so. The screen is close to a tall crop in large clumps, and there is another growing crop across the road. The surrounding vegetation changes as crops grow and are harvested. As well the enclosure appears not to be well maintained grass to a few centimetres.

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 non-compliant: 48.65%.

The Wacky World of Weather Stations: No. 323- Red Rocks Point (WA)

January 9, 2020

Thursday 09/01/2020

Please refer back to my first post for site specifications and to No. 92- Logan City for 2018 specifications.  If you wish to check on this (or any) site for yourself, go to my post on how to check for yourself.

Station: Red Rocks Point 11053

Opened: 1999

Daily Temperature data from: 1999

Data used to adjust Acorn sites at: —

Co-ordinates: -32.2028 127.5297

1,100km east of Perth, 1,070 west of Adelaide.

BOM site plan 2019:

Google satellite image:

The screen is on sand within a couple of metres of coastal shrubs to 2 metres.

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

FAIL

Percentage of all sites non-compliant: 48.5%.

The Wacky World of Weather Stations: No. 322- Shark Bay Airport (WA)

January 9, 2020

Thursday 09/01/2020

Please refer back to my first post for site specifications and to No. 92- Logan City for 2018 specifications.  If you wish to check on this (or any) site for yourself, go to my post on how to check for yourself.

Station: Shark Bay Airport 6105

Opened: 2000

Daily Temperature data from: 2000

Data used to adjust Acorn sites at: —

Co-ordinates: –25.8925 113.5772

710km north-west of Perth.

BOM site plan 2017:

Google satellite image:

The screen is on bare red dirt and less than 5 metres from 3 metre bushes.

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

FAIL

Percentage of all sites non-compliant: 48.35%.

The Wacky World of Weather Stations: No. 321- Telfer (WA)

January 9, 2020

Thursday 09/01/2020

Please refer back to my first post for site specifications and to No. 92- Logan City for 2018 specifications.  If you wish to check on this (or any) site for yourself, go to my post on how to check for yourself.

Station: Telfer Aero 13030

Opened: 1974

Daily Temperature data from: 1974

Data used to adjust Acorn sites at: Marble Bar, Port Hedland, Wittenoom

Co-ordinates: -21.7125 122.2281

1,300km north-east of Perth.

BOM site plan 2018:

Google satellite image:

The screen is close to bare red dirt, dry and dusty for most of the year. Vehicles drive close to the screen.

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 non-compliant: 48.2%.