Search results
Sep 11, 2023 · Fire-weather measures fire risk on a daily basis, while a fire-climate regime measures fire risk over seasonal and longer time scales. Our research shows almost everywhere in Australia is now in a ...
Dec 9, 2021 · Australia experiences up to 20 extra dangerous fire weather days per year compared to mid-last-century and that is set to get worse, according to research from the Bureau of Meteorology.
- What Did We find?
- Fire Burns Much More Land Than 25 Years Ago
- More Extreme Fire Years and Longer Fire Seasons
- What’s Driving These Changes?
- Can We Predict Our Next Megafire?
Our study found that the annual area burned by fire across Australia’s forests has been increasing by about 48,000 ha per year over the last three decades. After five years, that would be roughly the size of the entireAustralian Capital Territory (235,000 hectares). We found three out of four extreme forest fire years since states started keeping r...
Before the 1990s, Australia’s forest fires were infrequent, though damaging. A given area would burn at an interval between 20 to over 100 years. The exception were rare summers which would see severe and extensive fires, such as 1939. Overall, only a small fraction of the total forest area burned in any year. This pattern of fire behaviour no long...
Before 2002, there was just one megafire year in the 90 years Australian states have been keeping records – and that was 1939. Since 2001, there have been three megafire years, defined as a year in which more than one million hectares burn. Our fire seasons are also getting longer. Spring and summer used to be the time most forest fires would start...
Imagine a forest fire starts from a lightning strike in remote bushland. What are the factors which would make it grow, spread and intensify? A fire will get larger and more dangerous if it has access to more fuel (dry grass, fallen limbs and bark), and if the fire starts when the weather is hotter, drier and windier. Topography also plays a role, ...
So could we have predicted how bad and how widespread the Black Summer fires would have been, if we had examined fire danger index forecasts in mid-2019? In short, yes. The huge amount of bush that burned is entirely consistent with the 34 days of very high forest fire danger across the forest zones that summer. That’s in line with the long-range b...
The Spotlight figure 22 shows the change in status of vegetation fire intervals before and after the 2019–20 Black Summer fires. The time interval between fires is an indicator of the health of vegetation communities, with the recommended time interval, which varies for different vegetation communities, allowing for healthy regeneration and regrowth (apart from some specific communities ...
Name fire-extent-and-severity-mapping-report-for-2021-22-fire-year-220509.pdf. This summary report is accompanied by a data spreadsheet for the 2021–22 fire year (XLSX 290KB). The fire extent and severity maps (FESM) spatial data are made available on the Sharing and Enabling Environmental Data (SEED) portal at the end of each fire year.
Jan 7, 2021 · The 2019/20 Black Summer bushfire disaster in southeast Australia was unprecedented: the extensive area of forest burnt, the radiative power of the fires, and the extraordinary number of fires ...
People also ask
When did fire season change in Australia?
What is the fire season like in NSW?
How did the 2019/20 bushfires affect people in NSW?
How have fires changed over the last 30 years?
Is Australia in a different fire climate than 20 years ago?
What was the fire risk in Southeast Australia between September 2019 & February 2020?
This article was first published in Fire Australia, Issue Three 2021. Research after the worst fire season in New South Wales history shows there are challenges around community expectations of bushfire warnings, with many people expecting to receive highly detailed and localised information in near real-time.
