The Satellite Remote Sensing Services Department of Land Administration (DOLA) routinely evaluates the NOAA AVHRR satellite sensor to detect and locate vegetation fires and high-temperature events. In Australia hot events depicted by the satellite can represent wildfires or prescribed fires as well as industrial activities (e.g., gas flares, smelters) and hot surfaces (e.g., rocks heated by solar radiation during the daytime overpasses of the satellite). Thus, DOLA displays two products of hot spot maps: the automatically generated high-temperature event maps (which include false alarms) and the manually generated fire maps. All hotspot locations are geo-referenced and where required as Australian Map Grid. On some days up to four NOAA-AVHRR passes are used to identify hot events.
The manual method (human operator) provides greater accuracy however it takes longer. Thus, the issue of the manually generated fire maps is delayed (not real-time). Hot spots are located using NOAA-AVHRR channel 3 on early morning (0050-0340hrs) and mid morning (0450-0630hrs) images.
15 October 2000 16 October 2000 17 October 2000 18 October 2000
Smoke over Australia, on 15-18 October 2000 NOTE: The surface background image used here is NOT part of the TOMS aerosol index retrieval. (Source: TOMS Global Aerosol Hot Spots Page)
Huge smoke plume stretches across Australia AUSTRALIA, October 19, 2000
SYDNEY – A massive plume of smoke stretching across Australia from the Indian Ocean to the Pacific is forcing outback pollution levels to soar to above those recorded in the country’s cities, Australian scientists said yesterday. Bushfires dotted across the remote Kimberley district of northwest Australia have fuelled the vast smoke plume, which has raised outback pollution levels to more than 10 times the normal level. The smoke plume, which stretches diagonally across Australia from the northwest to southeast, rises 10,000 metres (32,800 feet) above sea level and is visible on satellite images. The Australian government’s scientific body said above average rainfall during the outback wet season between November 1999 and April 2000, which caused widespread flooding, led to rapid vegetation growth in the usually barren inland areas. The growth, especially grasslands used by Australia’s huge outback cattle properties, provided fuel for bushfires which have been burning for the past month. Australia’s populated east coast is bracing for a horror bushfire season this southern hemisphere summer with hundreds of fires already scorching large tracts of land in three states, threatening homes and an oil refinery in Sydney. The Commonwealth Scientific and Industrial Research Organisation (CSIRO) (website: http://www.csiro.au) warned that the smoke plume stretching across Australia could start to adversely affect agriculture by altering outback climatic conditions.
The Australian Bureau of Meteorology is the National Meteorological Service for Australia and provides essential meteorological services to all sectors of the Australian community.
Northern TerritoryFire Danger High over the northwest Top End.
Western AustraliaFire Danger Town of Port Hedland – Very High Shire of Roebourne – Very High Shire of Ashburton -Very High Shire of East Pilbara – Very High Kimberley – Moderate – High
Links: Australasian Fire Authorities Council The home page of the Australasian Fire Authorities Council coordinates the diverse range of activities of the different australian agencies concerned about fire. Firebreak The firebreak newsletter provides a very extensive homepage with information about fire fighting in Australia, downloadable java scripts for calculating fire weather and various links to related sites The Department of Natural Resources and Environment in Victoria The Department offers a very comprehensive web site with information on fire management. In their web site current reports are provided with statistics on the fire season. Extensive background information is included along with several links to related web sites. Satellite Remote Sensing Services Department of Land Administration (DOLA) The Satellite Remote Sensing Services (SRSS) of the Department of Land Administration provides near real time hot spot detection and burned scar mapping for western Australia. In the Firewatch project the SRSS detects hotspots throughout Western Australia using the thermal channel of the NOAA AVHRR sensor on a daily basis.