More wildfires have burned around the Russian capital this year than in the last decade and a half, according to sensors aboard European ESA’s observation satellites. The forest and peat bog fires ignited this summer amid an unprecedented heat wave of up to 40ºC.
Working like thermometers in the sky, the Along Track Scanning Radiometer and the Advanced Along Track Scanning Radiometer on ESA’s ERS-2 and Envisat satellites measure thermal-infrared radiation to take the temperature of Earth’s land surface.
Flames reach temperatures that are detected by these sensors and confirm the presence of fire.
For more: ESA Portal - Satellites reveal Russian fires worst in 14 years
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