Active Fires (1 month - Terra/MODIS)

Active Fires (1 month - Terra/MODIS) | NASA

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About this dataset

Fire is a recurring part of nature. Wildfires can be caused by lightning striking a forest canopy or, in a few isolated cases, by lava or hot rocks ejected from erupting volcanoes. Most fires worldwide are started by humans, sometimes accidentally and sometimes on purpose. Not all fires are bad. Fire clears away dead and dying underbrush, which can help restore forest ecosystems to good health. Humans use fire as a tool in slash-and-burn agriculture to speed up the process of breaking down unwanted vegetation into the soil. Humans also use fire to clear away old-growth forests to make room for living spaces, roads, and fields for raising crops and cattle. But not all fires are good. Wildfires can destroy natural resources and human structures. Globally, fire plays a major role in Earth's carbon cycle by releasing carbon into the air, and by consuming trees that would otherwise absorb carbon from the air during photosynthesis. These maps show the locations of actively burning fires around the world, detected by instruments aboard NASA satellites.

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July 2014

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What do the colors mean?

The red, orange, and yellow pixels on these maps show the locations where the MODIS instrument detects actively burning fires. Don't be fooled by sizes of some of the bright splotches on these maps. The colors represent a count of the number of fires observed within a 1,000-square-kilometer area. White pixels show the high end of the count — as many as 100 fires in a 1,000-square-kilometer area per day. Yellow pixels show as many as 10 fires, orange shows as many as 5 fires, and red areas as few as 1 fire in a 1,000-square-kilometer area per day.

Related Websites

MODIS

Terra

ATBD (Algorithm Theoretical Basis Document)

MODIS Fire Products

Credits

These Fire Maps were created by Reto Stockli, NASA's Earth Observatory Team, using data courtesy the MODIS Land Science Team at NASA Goddard Space Flight Center.

Federal Geographic Data Committee Geospatial Metadata

View the FGDC Metatdata for Active Fires (1 month - Terra/MODIS)

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