high temperature! high temperature! It's hot again!
Since the northern hemisphere entered the summer, there have been high temperature weather in many parts of the world, including 719 deaths in Canada caused by high temperatures in North America, and many people in the United States who have been hospitalized due to high temperatures and even died.
Kuwait, located in the middle of the desert, is one of the hottest countries in the world, and since the beginning of summer, there have also been high temperatures of more than 50 degrees Celsius, in which reporters measured a high temperature of 72.3 degrees Celsius in the noonday sun, even in a cool environment, they also measured a temperature of 54 degrees Celsius. Here it is explained that the reporter is not using professional meteorological temperature measurement equipment, and the measured temperature is not the temperature announced by the meteorological department.
Algeria was also hit by a heat wave, the temperature in the local area once reached 60 ° C, so hot environment, even the camel with the "desert boat", are hot on the side of the road, a person driving by took a bottle of water to the camel, only to see the camel without hesitation to drink it. However, these waters are really a drop in the bucket for camels, because they drink hundreds of pounds of water at a time, stored in the body and used slowly.
Nowadays, high temperature has also begun to sweep china, with the end of the plum rainy season in the south of China, many places in the south will be dominated by subtropical high pressure, affected by subtropical high pressure, local areas in the east of China will usher in a high temperature of more than 35 ° C.
The hottest place in China is not the eastern region of China, but the western region, the local area along the Tianshan Mountains and the southern Xinjiang Basin in Xinjiang, and the maximum temperature will reach 37 to 39 °C In the local area, it can exceed 40 degrees Celsius.
So the question is, what is the earth, why are there hot weather in many places?
<h1 class="pgc-h-arrow-right" data-track="8" > the cause of high temperature</h1> formation
In fact, except for North America, the temperature in other places is relatively normal.
The first is Kuwait and Algeria, both of which have tropical desert climates and large desert areas. The main reason for the formation of the tropical desert climate is that it is ruled by the "subtropical high pressure" all year round, and the place dominated by the subtropical high pressure prevails in the sinking air flow, and the local evaporation is large but the rainfall is small, which will lead to the local desert landscape over time.
Deserts have a smaller specific heat capacity and accept the same heat, and the desert heats up much faster than other places, plus in places dominated by subtropical high pressures, there is often sunny and cloudless weather, without cloud and fog, which will cause the local to accept more solar energy and heat up faster, so that there will be ultra-high temperatures.
Although the temperature here is very high for us, for people who live here all year round, they must adapt to the high temperature environment to survive in the local area, so they have adapted to the local climate, and they will also adjust the rhythm of life to adapt to the high temperature, for example: their schedule will bypass the hottest time to be outdoors.
The high temperature in the western part of Our country is also because of the local desert, but the reason for the emergence of the western desert in China is not dominated by subtropical high pressure, but the distance from the ocean, coupled with the barrier of the surrounding tall mountains, makes the water vapor of the ocean unable to reach here, so that the rainfall here is small, and finally the desert landscape is formed. It is precisely because the western part of China is not a desert formed by subtropical high pressure, coupled with the fact that the specific heat capacity of the desert is small, and the rate of heat absorption and heat exothermic is faster, so the local daily temperature difference is larger, and the daily temperature difference above 10 ° C is very common in the local area, so there will be "wearing cotton jackets early and wearing yarn at noon, eating watermelon around the stove".
The reason for the high temperature in the southern region of China is also because of the role of subtropical high pressure. Subtropical high pressure is located at about 30 degrees north and south latitude, it exists all year round, but the location is not fixed, of which China is mainly affected by the western Pacific subtropical high pressure (referred to as: west pacific sub-high).
In the summer, the northern hemisphere receives more heat, and the western sub-high dominance area becomes larger, and it will continue to move northward. In the process of moving north, the warm and humid water vapor from the ocean will intersect along the subtropical high pressure ridge of the western Pacific Ocean and the cold air from the north, forming China's rain belt at the intersection of the fronts, and plum rain is formed in this way.
Nowadays, the West Pacific Vice High continues to push north, and the rain belt also pushes north, so the southern part ends the rainy season, but at the same time, many places in the south will also be ruled by the West Pacific Vice High, which leads to high temperature weather in the south of China. But it should be known that the high temperature weather at this time is a normal phenomenon, which is because the temperature in China is not higher than the same period in previous years. Correspondingly, the north to northeast regions will be affected by the western pacific vice high and enter the flood season.
<h1 class="pgc-h-arrow-right" data-track="17" > North American high temperatures</h1>
This year's more abnormal high temperatures appeared in North America, and under the influence of thermal domes, local hot air continued to accumulate, resulting in significantly higher local temperatures than in previous years. For example, in previous years, the summer temperature in Seattle was only about 21 degrees Celsius, but this year it has reached 42 degrees Celsius.
Moreover, there are also historic high temperatures in the local area, for example: the highest temperature in Canada's history was set in 1937, the highest temperature was only 45 degrees Celsius, but this time the highest temperature record was not only refreshed for three consecutive days, but also the highest temperature reached 49.4 °C, setting a record for the highest temperature in Canada.
Experts said: The emergence of high temperatures in North America is extreme and abnormal, but through data simulation reality, if global warming continues, then the probability of extreme high temperatures in the future will be higher, and extreme heat will become more extreme.