28°S 143°E Orient – Queensland by Degrees

AT THE POINT

goog

Degree confluence 28°S 143°E, Google Earth

n

Looking north

e

Looking east

s

Looking south

w

Looking west


Acknowledgement: Bernie Brown of ‘Orient' for property access.

Point information & photos: Col Grant. Near midday, Sept 2008. Authors email: cgrant@vnc.qld.edu.au

IN THE DEGREE SQUARE

Observations carried out at exact degree confluence. Site is a t a gibber field in far western Qld, close to the divide between the Bulloo River and Cooper Creek.

ground

Ground surface

gps

GPS readout

Climate: The closest representative weather station is at the Tibooburra Post Office, which is 185 km south-west of the confluence, and has an elevation of 183 m.

 

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Year

Mean max
(ºC)

36.1

35.3

32.2

27.0

21.9

18.4

17.8

20.3

24.5

28.5

32.0

24.9

27.4

Mean min
(ºC)

22.0

21.7

18.6

13.9

9.4

6.4

5.4

6.8

10.2

14.1

17.5

20.3

13.9

Mean rain
(mm)

27.6

28.6

23.0

14.8

18.3

16.7

16.5

11.8

12.2

18.2

16.2

21.7

225.7

The highest temperature recorded was 47.6°C in January 1973, and the lowest was -2.5°C in June 1982. The greatest rainfall recorded in a year was 755.4 mm in 1974, and the lowest was 47.9 mm in 1919. These and other climate statistics for Tibooburra can be found at: Australian Bureau of Meteorology, http://www.bom.gov.au/climate/averages/tables/cw_046037_All.shtml

Extremes of Nature: Despite its inland location, since 1906 there has still been one cyclone to pass within 50 km of the degree confluence (David, 1976), and a further two have passed within 200 km (1956, 1964). Cyclone information for this area and all of Australia can be found at the Australian Bureau of Meteorology website, http://www.bom.gov.au/cgi-bin/silo/cyclones.cgi.

cyc

Cyclone tracks within 200 km of the confluence, 1906 to 2006 (Bureau of Meteorology web site)

The area can experience extreme heat throughout some of the year, with Tibooburra having an average of 74 days annually with maximum temperatures equal to or over 35°C. With a low annual rainfall and only 32 days on average a year, the area is also among the driest in Australia.

Today:

The total population of the degree square at the 2011 national census was 197, though this population is actually spread across 10 degree squares in a SA1 that is 73,760 sq km in area. Some of the apparent increase may be associated with the development of gas fields in the area.

MEASURE

1996

2001

2006

2011

Total population

58

83

27

197

Total males

36

58

16

135

Total females

22

25

11

62

Under 5 years

6

6

0

17

65 years and over

0

6

0

11

Indigenous

5

0

0

13

Grey Range
The Grey Range runs NE-SW through this degree square, and extends into adjacent squares. The feature shown is a ‘residual', with the area around it having been removed through erosion. It is partly protected by the hard capping on top. The light-coloured material below has been deeply weathered by chemical processes.

range

The Grey Range


Noccundra Hotel

The Noccundra Hotel is a famous location landmark. It provides the only services within a considerable area. From here roads connect with Thargomindah and Birdsville (Qld) and Tibooburra (NSW). The nearby Noccundra Waterhole offers camping in an attractive setting on the Wilson River.

hotel

Noccundra Hotel

Edited by: Hayley Freemantle

More to come.