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Coldest Northern Hemisphere temperature officially confirmed



Coldest Northern Hemisphere temperature officially confirmed

The coldest temperature in the Northern Hemisphere was recorded in Greenland in 1991. That temperature, first documented by the UW–Madison Antarctic Meteorological Research Center, was just confirmed by the World Meteorological Organization. Credit: NASA Nearly 30 years after recording a temperature of minus 93.2 degrees Fahrenheit (minus 69.6 Celsius) in Greenland, the measurement has been verified by the World Meteorological Organization as the coldest recorded temperature in the Northern Hemisphere.

The measurement was first recorded by a University of Wisconsin-Madison Antarctic Meteorological Research Center Automatic Weather Station in December 1991. An AWS is a standalone instrument suite developed by UW-Madison Space Science and Engineering Center and AMRC scientists and engineers to collect numerous environmental parameters such as air temperature , pressure, humidity, wind direction and speed. The information is then relayed via satellite back to SSEC in near real time.

Over time, these data have come to provide a benchmark for understanding weather extremes and climate change .

“The more data you have, the more you can understand what’s going on globally, and make important political and environmental decisions related to climate change,” says George Weidner, emeritus researcher with the UW-Madison Department of Atmospheric and Oceanic Sciences. “It is also an important […]

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