Where does the extreme cold weather happen?

Lead: At present, the frequency of extreme weather in the world is getting higher and higher, such as extreme high temperature, extreme low temperature, extreme drought, extreme precipitation and so on. Recently, some friends in Bian Xiao want to study hard. What are the phenomena of extremely cold and hot weather? Where does the extreme cold weather happen? Let's have a look.

What are the phenomena of extremely cold and hot weather?

Extreme cold is called La Nina phenomenon, and extreme heat is called El Nino warm current phenomenon.

La Nina phenomenon is an abnormal cooling of seawater in the central and eastern Pacific Ocean. The southeast wind blows the seawater heated by the sun to the western part of the Pacific Ocean, causing the sea level in the western part to rise by nearly 60 cm compared with that in the eastern part, the sea temperature in the western part to increase, the air pressure to decrease, the accumulation of wet air to form typhoons and tropical storms, and the bottom seawater in the eastern part to flow backward, resulting in the cooling of the sea water in the eastern part of the Pacific Ocean.

El Nino warm current is an abnormal natural phenomenon in the Pacific Ocean. On the west coast of South America and the eastern South Pacific, a famous Peruvian cold current flows from south to north. From June 165438+ 10 to March of the following year, it is summer in the southern hemisphere. The water temperature in the southern hemisphere generally rises and the equatorial warm current flows westward.

Where does the extreme cold weather happen?

Antarctica, 1

Antarctica is located at the southernmost tip of the earth, but the average thickness of the ice sheet reaches 1.6km, and the plateau and mountains are covered with ice sheets, with an altitude of more than 2,000 meters, making it the continent with the highest average latitude and average altitude in the world. In 20 10, Antarctica ushered in the lowest temperature in history, reaching an astonishing MINUS 57.7 degrees Celsius. At this temperature, it is estimated that the hot convenience bee Kanto will freeze as soon as it comes up! Moreover, Antarctica is the driest and windiest continent on earth, and the ice thickness in some areas can reach 2 miles.

2. Siberia

Siberia is a vast area in North Asia, with an area of about130,000 square kilometers. According to the topography, Siberia can be divided into three parts: the western Siberian plain, the central Siberian plateau and the eastern Siberian mountains. Siberia is rich in resources, and the western Siberian plain is the granary of Russia. 20 18, 18 10 In the middle of October, the extremely cold weather of minus 67 degrees Celsius was measured in the village of Oymyakan in the northeast of Siberia, Russia, almost equating the record of minus 67.7 degrees Celsius measured in 1933.

3. The northernmost part of Canada

In the northernmost part of Canada, the temperature in winter is around MINUS 50 degrees Celsius. As early as 1947, snagge Village in Yukon created the lowest temperature record in North America. Earlier, it was reported that the temperature in greater toronto area plummeted and the water in the underground soil burst like an earthquake due to freezing and expansion. In recent years, the temperature in the northernmost part of Canada is always falling. If you don't pay attention, there may be a risk of frostbite.

I believe that after reading these, your understanding of cold has made a new breakthrough. The cold weather is partly due to natural reasons and partly due to the destruction of the natural environment, which leads to unevenness and imbalance. I hope everyone can pay attention to protecting the ecological environment and the only beautiful earth.

Introduction to extreme weather

Extreme weather refers to a small probability event that the weather and climate state seriously deviates from its average state, once every few decades or even once in a hundred years. Extreme weather events mean that the state of weather (climate) seriously deviates from its average state, which is statistically unlikely to happen. Generally speaking, extreme weather and climate events refer to small probability events that occur once every 50 years or once every 100 years.

With global warming, the frequency of extreme weather and climate events has changed, showing an increasing trend. The latest assessment report issued by the United Nations Intergovernmental Panel on Climate Change (IPCC) IPCC)2007 shows that extreme weather events, especially extreme events such as heavy rainfall and high temperature heat waves, have been increasing in the past 50 years, and it is expected that such extreme events will appear more frequently in the future. The World Meteorological Organization issued a statement on extreme events, which not only significantly increased the number of extreme events worldwide, but also spread widely, including heavy rainfall in Southeast Asia, unprecedented tropical storm in the Gulf in June, heavy rainfall and floods in southern China, floods in Britain from May to July, heat waves in Southeast Europe and Russia, and abnormal snowfall in parts of South Africa and South America.