In the past few days, many places in the northern hemisphere have experienced high temperature “baking”. “High temperature”, “heat wave” and “record breaking” have become high-frequency words and the focus of attention. How hot is that? Let’s take a look together.
Spain heatwave continues as temperatures hit 45C in some areas
45 degrees Celsius, this is the temperature recorded in Seville, Spain on the 26th. Many people put up umbrellas and put on sun hats when they go out.
Spain is experiencing the first wave of heat waves this summer. On the 26th, the temperature in many places in the south reached above 42 degrees Celsius.
In the capital Madrid, children flocked to the fountain to cool off.
Madrid resident Elvira Martinez:It was so hot that the kids had to come here to cool off as they couldn’t stand it at home.
Tens of millions of people affected by record temperatures in many places in the United States
In the United States, temperatures in many places in the central and southern regions are constantly breaking records. In the past week, the temperature in many places in Texas once reached 46 degrees Celsius. More than 45 million people in Texas, Arizona, New Mexico and other states have been affected by the high temperature.
Sustained high temperature weather has brought challenges to power supply. According to a report released by the North American Electric Reliability Corporation, two-thirds of the entire North American region may face the risk of energy shortages during peak electricity consumption this summer.
Mexico will usher in a new wave of hot weather in July
Mexico has also been hit by high temperature weather recently, and the temperature in many places once exceeded 45 degrees Celsius. High temperatures have led to a significant increase in energy demand, which has so far increased by 9% compared to last year. Mexican meteorological experts predict that in the coming July, Mexico may usher in another wave of high temperature weather.
What is the impact of El Niño?
This year, extreme heat phenomena around the world have been fierce. The National Oceanic and Atmospheric Administration of the United States issued an alert on June 8 this year, saying that the El Niño phenomenon has appeared and is expected to continue into winter. So what exactly is El Niño? What does it have to do with global high temperature?
The word “El Niño” comes from Spanish and was originally used by fishermen to describe the warm current that occurs off the coast of Peru and Ecuador. El Niño is not a weather phenomenon, but a climate phenomenon, which generally lasts for 9 to 12 months.
Liberto, a climatologist at the National Oceanic and Atmospheric Administration:El Niño is not like a storm, El Niño is a change in weather patterns.
Under normal circumstances, the distribution of circulation near the equator is that a large amount of warm sea water flows from east to west, forming a stable ocean current. This ocean current causes the seawater temperature on the west side of the Pacific Ocean to be high, while the seawater temperature on the east side is relatively low, where the air is relatively dry and the climate is relatively arid. When the El Niño phenomenon occurs, the sea surface temperature of the equatorial central and eastern Pacific Ocean will appear persistent and large-scale anomalous warming. According to the criteria, an El Niño event can be judged if the sea temperature index in the key area reaches or exceeds 0.5ºC and lasts for at least 5 months.
Although it originates from the ocean, the influence of El Niño is not limited to the sea. It is often the “behind the scenes” of a series of extreme weather events such as “warm winter”, “hottest in history”, heavy rain and floods, and even cause global climate change. abnormal. Through the interaction of the ocean and the atmosphere, El Niño can have a noticeable effect on the weather. Usually, the countries and regions around the Pacific Rim and the entire equator are the first to be affected in the world.
Liberto, a climatologist at the National Oceanic and Atmospheric Administration:Generally speaking, the El Niño phenomenon is a dry signal for Indonesia and the Philippines, and it will also affect Australia from June to September. The dry climate will increase the risk of forest fires. During El Niño, we see flooding in western South America.
The El Niño phenomenon will also directly affect North America, bringing a warm and dry climate to the west coast of the United States, which will also lead to frequent forest fires near the border between Canada and the United States.
From the data point of view, since 1980, the global average temperature has broken records 12 times, 10 of which occurred in the year when El Niño appeared. In the context of global warming, the stronger the intensity of El Niño, the more obvious the increase in global average temperature will be.
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2023-06-27 23:29:00
