Polar meteorology

Polar meteorology is the study of the atmosphere of Earth's polar regions. Surface temperature inversion is typical of polar environments and leads to the katabatic wind phenomenon. The vertical temperature structure of polar environments tends to be more complex than in mid-latitude or tropical climates.

The collection of polar meteorology data started in 1893 with Fridtjof Nansen during his North Pole expedition. One of the goals of the expedition was to make detailed meteorological and early oceanographic measurements. The measurements made from Nansen’s ship, which was named Fram, were used by Vagn Walfrid Ekman to develop the theory of the turning of surface flow with friction (the Ekman spiral).

The Cold War acted as a catalyst for progress in polar meteorology. Balloon instruments along the northern borders of the US and Canada were used for atmospheric profiling. North America’s air defenses often used instruments carried on balloons to profile the Arctic. Nuclear submarines, which the United States used as a defense mechanism, were equipped with upward looking sonar. The data were later declassified and between 1958-1979 became the baseline for assessing the thinning of ice from the 1980s to the present day. Russia also contributed highly accurate data between 1937 and 1991.

Today, submarine mapping and measurements have been drastically reduced. One classic way to measuring ice thickness is to drill a hole in the ice and analyze the ice obtained. There are also many more complex methods and devices dedicated to measuring and keeping track of weather conditions in polar areas. These include ice mass balance buoys, upward looking sonar from under-ice buoys, and satellites. Global warming has increased interest in polar meteorology. This is because most of Earth's snow and ice are in polar regions, and these areas are expected to be the most affected by the snow/ice-surface albedo feedback effect. Therefore, if increased atmospheric carbon dioxide concentration causes global warming, then polar regions should warm faster than other locations on Earth.

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