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.
Fire Detection Map for Australia for 22 April 2001 overlaid on a pan-Australian vegetation cover map.
Source fire coordinates (manual): Satellite Remote Sensing Services Department of Land Administration (DOLA)
Source of vegetation and fuel type map: Luke and McArthur (1977) (Please take into account, that this presentation mainly represents fire events from Western Australia and Northern Territories)
The Australian Bureau of Meteorology is the National Meteorological Service for Australia and provides essential meteorological services to all sectors of the Australian community.
Fire danger for 23 April 2001:
Northern Territory High across the northwestern Top End. Western Australia CENTRAL WEST High LOWER WEST High CENTRAL WHEATBELT High GREAT SOUTHERN High SOUTHWEST High SOUTH COASTAL High
For more informations on Australia see the IFFN country notes and have a look at the Austalian and New Zealand links.