6/30/18, "Scientists Observe Coldest Temperatures Ever on Earth’s Surface," Breitbart, Thomas Williams, PhD
"Researchers released a report this week revealing “ultralow surface
temperatures” in East Antarctica that surpass the coldest temperatures
ever recorded on the earth’s surface.
The lowest measured air temperature on earth is −89.2 °C (−129 F) on
23 July 1983, observed at Vostok Station in Antarctica, but new data published in Geophysical Research Letters this week, has found that some 100
different locations on the East Antarctic Plateau reached temperatures
of -98° C (-144° F) during the Antarctic polar night between 2004–2016.
A team from the National Snow and Ice Data Center (NSIDC) at the
University of Colorado Boulder have identified the East Antarctic
Plateau — a massive, empty expanse the size of Australia that begins
near the South Pole — as the coldest place on the planet.
The East Antarctic Plateau sits some 3,500 m (11,500 ft) above sea
level and the air over the Plateau is extremely still, dry and thin,
providing an ideal environment for extreme cold.
“In this area, we see periods of incredibly dry air, and this allows
the heat from the snow surface to radiate into space more easily,” said Ted Scambos of the University of Colorado Boulder, lead author of the study.
East Antarctica is home to extremely low air and surface temperatures
brought on by intense radiative cooling of the snow surface during
prolonged wintertime periods of clear sky, weak winds, and very dry
atmosphere, the report revealed.
The researchers analyzed data from NASA’s Terra and Aqua satellites,
as well as the NOAA’s Polar Operational Environmental Satellites,
gathered during the Antarctic winters between 2004 and 2016, and found
that snow surface temperatures regularly dipped below -90° C (-130° F)
across the Plateau, with some 100 spots reaching a lowest temperature of
-98° C (-144° F).
“Approximately 100 sites have observed minimum surface temperatures
of ~−98 °C during the winters of 2004–2016,” and the researchers believe
that this represents close to the absolute coldest the earth’s surface
The coldest temperatures were found where pockets of air sat still for several days, allowing it to reach ultra-cold levels.
While Vostok, Antarctica, still holds the world record for the
coldest temperature ever measured by a land-based weather station, the
scientists hope to deploy ground-based instruments in the coldest
locations of the East Antarctic Plateau in the next year or two."
Added: Warmest spots on Earth identified in 2006, two in Iran and one in Algeria:
From "Introduction: An earlier study identified the highest surface temperatures on Earth (three sites
are essentially tied, two in Iran, and one in Algeria; Mildrexler et al., 2006), but concerns about cloud contamination limited attempts to identify record low
temperature sites from satellite data over ice sheets."...