La Ni a reading comprehension, welcome La Ni a again this winter, what is this phenomenon?

La Niña.

La Niña is a condition in which the waters of the central and eastern Pacific Ocean become abnormally cold. The southeast trade winds blow the sun-scorched sea water to the western part of the Pacific Ocean, causing the sea level in the west to rise by nearly 60 centimeters compared with the eastern one, and the sea temperature in the west increases, the air pressure drops, and the moist air accumulates to form typhoons and tropical storms, and the bottom sea water in the east rises, causing the sea water in the eastern Pacific Ocean to become colder. The atmospheric circulation over the Pacific Ocean is called the Walker circulation, when the Walker circulation becomes weaker, the sea water cannot blow to the west, and the sea water in the eastern Pacific Ocean warms, which is the El Niño phenomenon; But when the Walker circulation becomes unusually strong, La Niña occurs.

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. Strong La Niña occurred from 1988 to 1989 and 1998 to 2001, and weak La Niña from 1995 to 1996. He is the child of La Madre.

Causes of formation. So how exactly did La Niña come about? El Niño is associated with warming of sea surface temperatures and weakening of trade winds in the central and eastern equatorial Pacific Oceans, while La Niña is associated with cooler sea temperatures and strengthening of trade winds in the central and eastern equatorial Pacific.

So, in fact, La Niña is the product of a combination of the tropical ocean and the atmosphere. The movement of the surface layer of the ocean is mainly controlled by the surface winds. The presence of trade winds causes a large amount of warm water to be blown into the western equatorial Pacific, where the warm water is blown away and is mainly replenished by cold water below the sea surface, and the sea surface temperature in the eastern equatorial Pacific is significantly lower than that in the western Pacific.

When the trade winds intensify, the upturning of the deep sea water in the eastern equatorial Pacific becomes more intense, resulting in abnormally low sea surface temperatures, which makes the airflow sink in the eastern equatorial Pacific, and the upward movement of the airflow in the western part is more intensified, which is conducive to the strengthening of the trade winds, which further exacerbates the development of cold water in the eastern equatorial Pacific and triggers the so-called La Niña phenomenon.

With the onset of winter, the weather is getting colder day by day. As a result, the La Niña phenomenon once became the talk of many people after dinner. And what exactly is La Niña? I'm sure many people haven't heard of it yet.

Especially in recent years, it seems that you can hear this phrase every year, "This year's winter is particularly cold". Take Shandong as an example, today's temperature is obviously not normal, it stands to reason that it is not yet winter, Tianling pants should not be too cold, but just after the eleventh holiday, the temperature once dropped to a single-digit cold weather. People had to wear thick down jackets that were only worn in winter.

So why are the temperatures so abnormal today? What does La Niña mean?

Climatically speaking, La Niña is actually a "cold event". It is a climate change phenomenon triggered by an anomalous decline in the waters of the eastern Pacific Ocean, with trade winds blowing warm waters from the eastern Pacific to the western Pacific Ocean. This will make the eastern Pacific almost 60cm lower than the western sea, accompanied by a rise in the height and temperature of the western sea.

The air pressure over the ocean will drop, and with the change in air pressure, the moist air here will easily accumulate into typhoons or tropical storms. Once these natural phenomena occur, the bottom waters of the eastern Pacific Ocean will rise in response to typhoons and tropical storms. When the cold waters at the bottom rise, the temperature in the eastern Pacific Ocean will be greatly affected.

And it starts to get cold, which is what we call a cold event - La Niña.

So how much does La Niña really affect us? Most people are concerned about freezing caused by La Niña. In fact, there have been 14 recorded La Niñas around the world, and more than 80% of these La Niña years have had cold winters, plus we are facing double La Niñas this year.

We are going to face a cold winter, which should be a sure thing.

Although La Niña can alleviate the greenhouse effect, it does not mean that it is **. Just like painkillers, taking medicine can indeed relieve pain for a while, but it is not fundamentally**. The same is true for the effect of La Niña on the greenhouse effect, which cannot prevent the intensification of the greenhouse effect, on the contrary, the intensification of the greenhouse effect will lead to more frequent La Niña phenomena.

So if we put our hopes on the planet and let it regulate the warming trend on its own, it is basically too possible. In the final analysis, this is a disaster caused by human beings, and we still need to pay for it ourselves.

Welcoming La Niña again this winter is not a good phenomenon, which shows that this winter will be another cold season, and it is very likely that there will be a self-cracking disaster.

According to personal research, the La Fan Xiang Niña phenomenon usually alternates with El Niño, which brings hurricanes, torrential rains and severe cold. This means that the cave will be very cold this winter under the influence of La Niña.

This is an El Niño phenomenon, and it affects our daily lives.

1 Small changes in ocean temperature can cause a strong response to atmospheric temperature, and atmospheric wind stress drives the surface currents of the ocean.

2 The quotation mark table here has a specific meaning. "Perfection" is not really perfect, it refers to the conditions that are met.

3 b (is to illustrate that La Niña causes heavy rainfall and causes the climate to cool. ）

Answer 1: La Niña always occurs after El Niño, which is related to the strengthening of the equatorial easterly trade winds, which are driven by the trade winds to flow from the eastern Pacific to the western Pacific, which significantly increases the flow velocity of the western Pacific Ocean and pushes the warm water on the surface of the sea to the direction of the Asian continent, resulting in a large-scale and persistent abnormally low temperature in the central and eastern Pacific Ocean.

The use of perfection in the fifth paragraph is due to the fact that the winter climate is already strong, but because the natural climate causes the production of La Niña to bring a blizzard to the already cold winter, it should have a negative connotation.

b.The example of a major storm in Indonesia and elsewhere is given in the first paragraph to illustrate vividly that La Niña is a corrective transition phenomenon.

Formation of La Niña El Niño is associated with warming of sea surface temperatures and weakening of trade winds in the central and eastern equatorial Pacific, while La Niña is associated with cooler sea temperatures and stronger trade winds in the central and eastern equatorial Pacific. So, in fact, La Niña is the product of a combination of the tropical ocean and the atmosphere. The movement of the surface layer of the sea is mainly controlled by the wind on the surface of the sea.

The storage of trade winds caused a large amount of warm water to be blown into the western equatorial Pacific Ocean, and the warm water was blown away in the eastern equatorial Pacific Ocean, which was mainly replenished by cold water below the sea surface, and the sea surface temperature in the eastern equatorial Pacific Ocean was significantly lower than that in the western Pacific Ocean.

The temperature in the eastern Pacific Ocean suddenly cooled. The trade winds blow cold air into the western Pacific Ocean, and La Niña is formed. The most important thing for me to be concerned about is the coastal area, because the temperature will definitely drop sharply when La Niña hits in winter, and people should prepare plenty of food and thick winter clothes.

It is because of the cold wave and the decrease in the warm sun, and we should be most concerned about whether there is enough energy, especially in Europe.

La Niña is the product of the interaction of the tropical oceans and the atmosphere, how do they "work together"? Please explain this in the original words of the article.

La Niña is a corrective transition phenomenon after an El Niño year.

El Niño warms the climate, and La Niña makes it colder.

2.Why use quotation marks for "perfect" in the underlined sentence in the paragraph?

La Niña is perfect for blizzards to occur.

Summary of the second natural paragraph: La Niña is the product of the combined action of the tropical ocean and atmosphere.

Summary of the third natural paragraph: The ocean and atmosphere interact and interdepend on the temporal and spatial scales of abnormal climate change.

Summary of the fourth natural section: the effect of the combination of cold and warm air currents on the weather.

Summary of the fifth natural segment: La Niña intense winters, conditions that produce blizzards.

1. La Niña is the Spanish word for "little girl, saint", which is the opposite of El Niño, also known as "anti-El Niño" or "cold event", which refers to a phenomenon of abnormal drop in water temperature in the eastern Pacific Ocean near the equator, which is manifested as a significant cooling of the eastern Pacific Ocean, and is also accompanied by global climate chaos, which always appears after the El Niño phenomenon.

2. La Niña often alternates with El Niño, but the frequency of blue travel is lower than that of El Niño. When the La Niña phenomenon occurs, China is prone to cold winters and hot summers, and the number of tropical cyclones that make landfall in China is more than normal, and the phenomenon of drought in the south and flooding in the north occurs in Hengpants; Indonesia, eastern Australia, northeastern Brazil and other places have more rainfall; The equatorial region of Africa and the southern part of the United States are prone to drought.

3. El Niño and La Niña are anomalous manifestations of alternating cold and warm SST in the central and eastern Pacific Oceans, and this process of cold and warm SST formation constitutes a cycle, and it is not uncommon for La Niña to occur after El Niño. Similarly, La Niña will be followed by El Niño. But records since 1950 show that El Niño occurs more frequently than La Niña.

La Niña tends to be slower in frequency and weaker in the context of global warming. Especially in the 90s, there were three consecutive El Niños from 1991 to 1995, but there were no La Niñas in between.