Search results
Results From The WOW.Com Content Network
Decile rank of rainfall of Australia for each calendar year 1900-2022. Decile 1 means the lowest 10 per cent of records, decile 2 the next lowest 10 per cent, and so on, up to decile 10, the highest 10 per cent of records.
Recent climate events such as extremely high temperatures and widespread drought have focused government and public attention on the effects of climate change in Australia. [153] Rainfall in southwestern Australia has decreased by 10–20% since the 1970s, while southeastern Australia has also experienced a moderate decline since the 1990s. [150]
Australia has twelve distinguished NCB Level 1 drainage divisions [1] or thirteen [2] after splitting the South East Coast division at the New South Wales–Victoria border as defined by the Australian Water Resources Assessment 2012, a hydrological survey conducted by the Bureau of Meteorology. [3]
Over 50 per cent of runoff occurred in northern Australia. Only 6 per cent of Australia's runoff was in the Murray-Darling Basin, where 50 per cent of Australia's water use occurs. Australia's total large dam storage capacity was 84 BCM. [10] While surface water is well known, groundwater resources are not well known.
Rainfall is expected to become heavier and more infrequent, as well as more common in summer rather than in winter. Australia's annual average temperatures are projected to increase 0.4–2.0 °C above 1990 levels by the year 2030, and 1–6 °C by 2070.
The Lake Eyre basin (/ ɛər / AIR) is a drainage basin that covers just under one-sixth of all Australia.It is the largest endorheic basin in Australia and amongst the largest in the world, covering about 1,200,000 square kilometres (463,323 sq mi), including much of inland Queensland, large portions of South Australia and the Northern Territory, and a part of western New South Wales.
March Rainfall was 74% above average for NSW, and 35% above average for Victoria however overall rain was 27% below average for Australia. A large number of sites in NSW recorded their wettest March on record, in Greater Sydney, Illawarra, Northern Rivers and the Mid North Coast saw numerous daily records and monthly records broken.
A dried up Lake Hume, 2007 Drought-affected fields in the Victorian countryside, 2006. Drought in Australia is defined by the Australian Bureau of Meteorology as rainfall over period greater than three-months being in the lowest decile of what has been recorded for that region in the past. [1]