Meteorologists from the University of California have found the most extreme places on Earth. Searched by analyzing land surface temperature (LST) data collected by satellites over the past 18 years. The results were published recently in the Bulletin of the American Meteorological Society.
Most of all, the Sun warmed the surface in the Sonora Desert (Desierto de Sonora), located on the border of the United States and Mexico, and in the Deshte Lut Desert in eastern Iran, which occupies the central part of the Iranian Highlands. Orbital spectrographs gave them equal values of 80.8 degrees Celsius – you can fry eggs. This is 10.1 degrees higher than the record recorded in 2005.
It's not hard to guess where the coldest surface was. Of course, in Antarctica. It was minus 110.9 degrees here. It's warmer on Mars.
Along the way, the researchers pointed out the places with the widest diurnal temperature range (DTR) – that is, those where the temperature changes the most during the day. One of these is found in the deserts of China – 81.8 degrees Celsius.
Well, and the heat!
In August 2015, people who took to the streets of Iranian cities felt as if there were 74 degrees Celsius. According to the US National Weather Service, the so-called heat index has reached such a high level. With its help, it is assessed how a person perceives heat in a given humidity and wind strength.
The temperature in the shade of that hell – in the town of Bandar Mahshahr, located on the shores of the Persian Gulf, was “only” 46 degrees. But the humidity of almost 90 percent added another 28 degrees to the sensation.
Meteorologists do not officially register record values of heat indices, but they know that it has been harder than in Bandar Makhsher. For example, in the desert of Saudi Arabia on July 8, 2003, the heat index rose to 81 degrees Celsius. This is how the temperature of 42 degrees Celsius was felt with an air humidity of 95 percent and a light breeze from the Persian Gulf.
The highest air temperature (in the shade) was recorded in Libya on September 13, 1922 – 58.2 degrees.
On July 29, 2010, during an abnormal heat wave, the temperature in Moscow near the Balchug hotel reached 38.2 degrees.