What is the phenomenon of extremely cold and extremely hot weather called?
Introduction: The frequency of extreme weather around the world is increasing, such as extreme high temperatures, extreme low temperatures, extreme droughts, extreme precipitation, etc. Recently, some of my friends wanted to learn more about what the phenomenon of extremely cold and extremely hot weather is called? In which areas does extremely cold weather occur? Let’s take a look.
What is the phenomenon of extremely cold and extremely hot weather?
Extreme cold is called La Niña phenomenon, and extreme heat is called El Niño.
The La Niña phenomenon is an abnormally cooling situation in the central and eastern Pacific Ocean. The southeast trade wind blows the seawater heated by the sun to the west of the Pacific, causing the sea level in the west to be nearly 60 centimeters higher than that in the east. The seawater temperature in the west increases, the air pressure drops, and moist air accumulates to form typhoons and tropical storms. The bottom seawater in the east turns up. causing the waters of the eastern Pacific to become colder.
The El Niño Warm Current is an abnormal natural phenomenon in the Pacific Ocean. On the west coast of South America and the eastern part of the South Pacific, a famous Peruvian cold current flows from south to north, from November every year to March of the following year. This month is the summer in the southern hemisphere. The water temperature in the southern hemisphere generally rises, and the equatorial warm current flowing westward is strengthened.
In which areas do extremely cold weather occur?
1. Antarctica
Antarctica is the southernmost continent on the earth, but the average thickness of the ice sheet reaches 1.6 kilometers. Covered by ice caps are plateaus and mountains with an altitude of more than 2,000 meters. It is the continent with the highest average latitude and average altitude in the world. In 2010, Antarctica experienced its lowest temperature in history, reaching an astonishing minus 57.7 degrees Celsius. At this temperature, the hot Convenience Bee Oden will probably freeze as soon as it is brought out! And Antarctica is the driest and windiest continent on earth, with ice thickness up to 2 miles in some areas.
2. Siberia
Siberia is a vast area in North Asia, covering an area of about 13 million square kilometers. Siberia can be divided into three parts based on terrain: West Siberia Plain, Central Siberia Plateau, Eastern Siberian mountains. Siberia is rich in resources, and the West Siberian Plain is the breadbasket of Russia. In mid-January 2018, the extremely cold weather of minus 67 degrees Celsius was measured in the village of Oymyakon in northeastern Siberia, Russia, almost tying the record of minus 67.7 degrees Celsius measured in 1933.
3. The northernmost point of Canada
In some areas of the northernmost part of Canada, the winter temperature is about minus 50 degrees Celsius. Back in 1947, the Yukon village of Snug set the record for the coldest temperature in North America. It was previously reported that the temperature in the Greater Toronto Area dropped sharply, and the water in the underground soil froze and expanded, causing earthquake-like explosions. In recent years, the temperature in the northernmost part of Canada has been declining. If you are not careful, you may be at risk of frostbite.
I believe that after reading these, you will have a new breakthrough in your understanding of cold. Cold weather is partly due to natural causes, and partly also due to the damage to the natural environment, resulting in unevenness and imbalance. I hope everyone will pay attention to protect the ecological environment and protect this only beautiful earth.
Introduction to extreme weather
Extreme weather refers to a low-probability event where weather and climate conditions seriously deviate from their average state and occur once in decades or even once in a century. Extreme weather events refer to weather (climate) conditions that seriously deviate from their average state and are statistically unlikely to occur. In layman's terms, extreme weather and climate events refer to low-probability events that occur once in 50 years or once in 100 years.
With global climate warming, the frequency of extreme weather and climate events has changed, showing an increasing trend. The latest assessment report released by the United Nations Intergovernmental Panel on Climate Change (IPCC) in 2007 shows that in the past 50 years, extreme weather events, especially heavy rainfall, high temperature and heat waves, have shown an increasing trend. It is expected that such extreme events will increase in the future will appear more frequently. The World Meteorological Organization issued a statement on extreme events. Not only have there been a significant increase in extreme events around the world, but they are also widely distributed, including heavy rainfall in Southeast Asia, an unprecedented severe tropical storm in the Gulf in June, and heavy rainfall in southern China. and floods, floods in the UK from May to July, heat waves in southeastern Europe and Russia, unusual snowfall in some areas of South Africa and South America, etc.