See nearly a decade of burning from a satellite perspective.
What do nearly ten years of satellite fire observations look like? Instruments on two NASA Earth-observing satellites have answered that question by scanning the surface for signs of fire four times a day since 2002. The instruments have generated an ever-growing string of data that researchers have used to map the distribution of the world's fires in unprecedented detail. The visualization below provides a global tour of these observations using red to indicate actively burning fires, green to show vegetation and white to show snow. It begins with heavy grassland fires that speckle the dry interior of Australia in 2002. The view then pans to Asia and fire-prone Africa where waves of agricultural and management fires sweep across large portions of these continents in sync with seasonal surges of vegetation and retreating snow. A glimpse of a mild South American fire season in 2009 follows, along with intermittent flashes from wildfires that ravaged areas of Texas in the spring of 2011. Such data has more than aesthetic value: scientists use it to track fire trends over time and to refine calculations that show how greenhouse gases and particles emitted by fires in different regions contribute to climate change.
GCMD keywords can be found on the Internet with the following citation:
Olsen, L.M., G. Major, K. Shein, J. Scialdone, S. Ritz, T. Stevens, M. Morahan, A. Aleman, R. Vogel, S. Leicester, H. Weir, M. Meaux, S. Grebas, C.Solomon, M. Holland, T. Northcutt, R. A. Restrepo, R. Bilodeau, 2013. NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version 22.214.171.124.0