
The mean maximum temperature was 0.65 ☌ above average and the mean minimum temperature was 0.45 ☌ above average. About deciles.Īustralia's area-averaged mean temperature for 2021 was 0.56 ☌ above the 1961–1990 average.
See also annual mean maximum temperature (left) and annual mean minimum temperature (right).
A Negative Indian Ocean Dipole in winter and spring also fuelled above-average winter–spring rainfall over parts of southern Australia, compared to the distribution of rainfall across all years since 1900Ī warmer than average year for Australia, despite La Niña in successive summersĢ021 annual mean temperatures compared to historical temperature observations (top). La Niña persisted through summer 2020–21, returning to neutral during March, with signs of it emerging again in early spring, and becoming established in late November. Flooding affected eastern and central Australia during the second half of March, parts of Victoria during June, and across large areas of New South Wales and Queensland from November into December. While southern Murray–Darling Basin water storages saw significant increases during winter and spring 2021, storage levels remained low in south-east Queensland.
Above average rainfall, compared to the distribution of rainfall across all years since 1900, brought relief from drought in Western Australia in March, and in Queensland in November. The year commenced with parts of south-west to central Western Australia, as well as the south-eastern quarter of Queensland, affected by meteorological drought, with rainfall for the period commencing April 2020 in the lowest 10% of historical observations. Rainfall was below average, compared to the distribution of rainfall across all years since 1900, for a few areas, such as around the border of South Australia and Victoria. Rainfall was above average, compared to the distribution of rainfall across all years since 1900, for eastern Victoria, much of New South Wales, southern and central west Queensland, the Gascoyne and South West Land Division in Western Australia, and much of the far northern tropics, including the Top End of the Northern Territory and Cape York Peninsula in Queensland. Nationally-averaged rainfall was 9% above the 1961–1990 average at 509.7 mm. Severe to extreme heatwave conditions affected the Kimberley and Top End during October, and parts of the north in November and December. July and August were particularly warm, with the national mean temperature fourth-warmest and sixth-warmest on record for their respective months.
Both mean annual maximum and minimum temperatures were above average for most of northern Australia, Tasmania, and parts of the west coast, but below average for parts of inland New South Wales. Australia's national mean temperature was 0.56 ☌ warmer than the 1961–1990 average, making 2021 the 19th-warmest year on record, and coolest since 2012. The Company has installed production capacity of approximately 5000 tons of aluminum fluoride per year.
Aluminum smelter are users of aluminum fluoride. Its aluminum fluoride is added as a flux in reducing the melting point of alumina during the electrolytic process of producing aluminum, and for making flux tablets to purify metal in foundries. In the production process of aluminum fluoride, the Company produces two by-products are generated, namely, silica and calcium Fluoride, which are also used in chemical industry. Fluorine gases are scrubbed with water to produce Hydro-fluosilicic acid. Its aluminum fluoride is produced with a technology by reacting dry Alumina Hydrate with Hydro-fluosilicic acid, which is generated from the fluorine recovery unit of the adjoining fertilizer complex. Alufluoride Limited is an India-based company, which is engaged in the manufacturing of aluminum Fluoride and related projects.