![]() ![]() In their analysis, Running, Mildrexler, and Maosheng Zhao scrutinized global measurements of land “skin” temperatures from 2003 to 2009. Orbiting instruments can scan every parcel of the planet's surface and fill in the gaps in global temperature measurements. “The majority of Earth’s hottest spots are simply not being directly measured by ground-based instruments.” ![]() “The Earth’s hot deserts-such as the Sahara, the Gobi, the Sonoran, and the Lut-are climatically harsh and so remote that access for routine measurements and maintenance of a weather station is impractical,” says David Mildrexler, also at the University of Montana. In a study of seven years of global land surface temperatures as measured by satellites, the Lut Desert ranked as hottest in five of the years. The top image is natural color, while the bottom is infrared both were acquired on Jby Landsat 7. The images above show a portion of the Lut Desert in Iran. “Most of the places that call themselves the hottest on Earth are not even serious contenders,” says Steve Running of the University of Montana. That measurement shifted the title for “the world’s hottest place” away from Death Valley, California, which set the previous record (56.7☌ or 134☏) in July 1913.īut more recent research says that neither location has a true claim to the title. According to the World Meteorological Organization (WMO), the highest temperature ever measured on Earth came on September 13, 1922, when the thermometer at a weather station in El Azizia, Libya, reached 58.0☌ (136.4☏). ![]()
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