When did El Ni o occur

The timing of El Niño is uncertain, but it generally occurs more in the first half of the year, and the duration is also different, generally lasting about half a year.

Once every 2 to 7 years, it is generally from October to November to March to April of the following year.

If you think about it, El Niño means Holy Child, which means 1-2 months before and after Christmas.

El Niño, which means Holy Child in Spanish, occurs around Christmas.

It often occurs near Peru.

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Problem description: The specific year and month of El Niño and La Niña from 1960 to 2006.

Analysis: The El Niño phenomenon from April 1982 to July 1983 was the worst in a century, with water surface temperatures in the eastern to central Pacific Ocean about 4 to 5 above normal, killing 1,300 1,500 people worldwide and causing economic losses of nearly $10 billion.

The El Niño phenomenon from 1986 to 1987 caused the surface water temperature of the central and eastern equatorial Pacific Ocean to be about higher than the average annual temperature2. At the same time, the atmospheric circulation in the tropics is also correspondingly abnormal, and the weather in the tropics and their regions is abnormal. Heavy rains in northern and central Peru in South America; The Amazon River in Colombia swelled so much that its embankments burst several times; The northeast of Brazil is dry and rainy, and the western part is hot; Significant reduction in rainfall in eastern and coastal Australia; South China, South Asia and northern Africa all have little rain and drought.

In the early 1990s, El Niño precursors were repeated. In January of this year, the water surface temperature in the central Pacific Ocean was higher than usual, in addition to the water surface temperature in the equatorial sea area was higher than in previous years, the water surface temperature in the sea area west of the International Date Line was also nearly 1 higher than in previous years; The warm water layer of 28 near the sea surface is about 10 meters shallower than usual; The water level in the waters off the Pacific coast of South America is **15 30 cm higher than usual.

The 1997-1998 El Niño phenomenon, in which the surface temperature of the eastern to central Pacific Ocean was about 3 to 4 warmer than normal, caused heavy flooding in the Yangtze River, persistent heavy rains in southern China, and large-scale forest fires in Southeast Asia.

At the same time, the warm waters driven by the El Niño phenomenon affect the movement of fish in groups and destroy the growth of coral reefs.

Generally, La Niña occurs with El Niño, and the second year of El Niño occurs, La Niña occurs, and sometimes La Niña lasts for two or three years. The 1988-1989 and 1998-2001 periods of intense La Niña events brought the eastern to central Pacific Ocean 1 to 2 cooler than normal, while the 1995-1996 La Niña events were weaker. Some scientists believe that La Niña has a tendency to weaken due to the trend of global warming.

2023 is likely to be an El Niño year.

According to the latest**, La Niña conditions, which have caused flooding in the eastern part of Australia and worsening drought in the United States and East Africa, could continue into 2023. In the Northern Hemisphere, it is common to have a La Niña for two consecutive winters, but it is relatively rare for three winters to occur.

More La Niña events will increase the likelihood of flooding in Southeast Asia and increase the risk of drought and wildfires in the southwestern U.S., as well as different storms, hurricanes and monsoon patterns in the Pacific and Atlantic Oceans.

The World Meteorological Organization's latest** release on 10 June suggests that there is a 50 60 probability that La Niña conditions will continue into July or September, which could boost Atlantic hurricane activity. NOAA Climate Core has a 51% chance of a La Niña condition in early 2023.

Manifestations of El Niño:

El Niño is part of the natural meteorological cycle, and its recurrence is cyclical, occurring about every 3-7 years, and the impact on global weather can be up to a year.

El Niño is the strongest of the global climate signals, causing both floods and droughts. Climatologists have warned that severe weather will become more frequent in the coming years as the global El Niño climate phenomenon begins and the fact that it exacerbates the effects of global warming.

For the world, 2009 was another "El Niño" year. Ren Fumin, a senior engineer at the National Climate Center of the China Meteorological Administration, said that since June 2009, the ocean atmosphere in the equatorial eastern Pacific Ocean has entered an El Niño state, and the current sea surface temperature has been warm for more than six months, which marks that an El Niño event has been fully formed in the equatorial eastern Pacific Ocean.

Around Christmas, the surface waters off the coasts of Peru and Ecuador in South America often warm, a phenomenon locals call "El Niño," which means "Holy Child" in Spanish. At the time of El Niño, warming tends to start off the coasts of Peru and Ecuador and then spread westward, creating prolonged periods of anomalous warming over the vast eastern Pacific near the equator, resulting in mass deaths of fish and plankton-feeding birds. As a result of the warming of the sea, the temperature of the atmosphere above the sea surface has also increased, which has upset the balance of the Earth's climate, resulting in severe droughts in some places and flooding in others.

This phenomenon recurs approximately every 3 to 5 years.

According to statistics, since the 60s of the 20th century, the "El Niño" phenomenon has occurred many times on the earth, and the "El Niño" phenomenon that occurred in 1982 and 1983 was the most serious one in the 20th century, with more than 15 million people dying in the world and causing economic losses of up to tens of billions of dollars. The most recent "El Niño" occurred in 1990 and 1991, and although the damage was not as severe as the last one, it also brought many disasters to the world, such as floods in the middle and lower reaches of the Yangtze River in China, severe droughts in southern Africa and the Philippines, and unusually humid areas along the Texas and Mexican coasts in the United States.

Why is this anomaly occurring? Many scientists have conducted in-depth research and come up with a wide variety of perspectives.

Some people look to natural phenomena for the cause. They believe that the "El Niño" phenomenon is due to the weakening of the equatorial trade winds in the Pacific Ocean. Some people believe that the "El Niño" phenomenon is due to the continuous strengthening of the equatorial easterly belt in the western Pacific, which has caused the Pacific Ocean to be high in the west and low in the east.

It is also believed that due to the weakening of the two subtropical highs in the southeast and northeast Pacific, the southeast trade winds and northeast trade winds are weakened, resulting in the weakening of the equatorial ocean current and the cold water upturn in the eastern equatorial Ocean, resulting in an increase in the sea temperature of the equatorial Pacific Ocean and the formation of an "El Niño" phenomenon.

There are also people who look for reasons in the direction of the earth's movement. Those who hold this view believe that the occurrence of the "El Niño" phenomenon is related to a large and sustained slowdown in the speed of the Earth's rotation, which generally occurs during the period when the Earth's rotation changes from acceleration to deceleration. This is because when the Earth's rotation speed slows down significantly, the sea water or atmosphere near the equator can gain more eastward movement, causing the weakening of the equatorial ocean current or equatorial trade winds, and then causing the weakening of the cold water overturn in the eastern equatorial Pacific Ocean, which causes the "El Niño" phenomenon of abnormal warming of sea surface temperature over a wide range of the eastern and central equatorial Pacific Oceans.

There are so many theories about the causes of the "El Niño" phenomenon, which shows that there is no absolutely convincing authoritative viewpoint, and further research and ** are needed.

Since 1950, there have been many El Niño events around the world. Some of the more famous ones are 1972-1973, 1982-1983 and 1997-1998.

El Niño can have a range of impacts, such as: the emergence of extreme weather events, which can lead to the reduction of water resources and the displacement of rainfall areas; Changes in the marine ecological chain will lead to the death or mass migration of many organisms; Changes in the global climate will have an impact on the economy, society, and culture of each country.

The best way to deal with El Niño is to take precautions in advance, including strengthening meteorological monitoring, adjusting agricultural planting structures, and protecting marine ecosystems. In addition, publicity should be strengthened to raise public awareness of the El Niño phenomenon and reduce the occurrence of Duan's disaster.

Possibly. China News Service, Beijing, March 16 (Ruan Yulin) The results of the meeting released by the National Marine Environmental Forecasting Center of the Ministry of Natural Resources of China on the 16th show that the La Niña event for three consecutive years will end in the spring of 2023, and the possibility of an El Niño event in the autumn and winter cannot be ruled out. The National Marine Environmental Forecasting Center and Hohai University recently jointly held the "2023 Spring El Niño and Climate Conference".

The experts at the meeting conducted an in-depth discussion on the development trend of the El Niño-Southern Oscillation (ENSO) in the spring and summer of this year, and fully discussed the temperature, precipitation, and periodic extreme weather in various regions of China in the spring and summer of this year. **It is believed that La Niña events occurred for three consecutive years from August 2020 to January 2023 in the equatorial eastern Pacific Ocean. At present, the state of the ocean and atmosphere at the equatorial Taiping is not conducive to the maintenance and development of a La Niña event, which will end in late winter and early spring 2023.

The equatorial eastern Pacific Ocean is expected to be neutral this summer, and the possibility of an El Niño event in the fall and winter cannot be ruled out.

"El Niño" refers to a widespread and persistently warm phenomenon in the eastern and central equatorial Pacific Oceans. It can also lead to extreme weather disasters such as heavy rains, floods, and strong typhoons. An "El Niño year" means that it is a year of more disasters.

It means that the rain will be less this year, the temperature will be relatively high, which is easy to cause drought in the local area, easy to reduce crop yields, and affect the lives of ordinary people.

This is a meteorological anomaly, and the occurrence of this phenomenon will also have an impact on our country, for example, our country is still very warm in winter, the south has more rainfall, and the north is dry and hot.

El Niño is a global severe weather phenomenon, and an El Niño year means that this bad weather phenomenon will recur in that year, or it means that there will be other bad phenomena in the world during the year.

The El Niño phenomenon has caused global warming, which has led to more extreme weather, tsunamis, blizzards, and other disasters!

El Niño is a phenomenon studied by meteorologists and oceanographers, meaning waterlogging in the south and drought in the north.

El Niño.

It always occurs cyclically, every 2 7 years. In the 20 years since 1997, El Niño has occurred five times in 1976, 1977, 1982, 1983, 1986, 1987, 1991, 1993 and 1994 and 1995. 1982 The El Niño phenomenon in the 1983 sedan chair was the worst since the 20th century, causing an estimated 1,500 deaths and $8 billion in property damage worldwide.

After entering the 90s of the 20th century, with global warming.

The phenomenon is also becoming more frequent.