What is the ENSO?
The ENSO is a recurring climatic pattern involving temperature changes in the waters of the eastern and central tropical Pacific Ocean, and changes in the patterns of upper and lower level winds, sea level pressure, and tropical rainfall across the Pacific Basin.
What are the two phases of ENSO?
Though ENSO is a single climate phenomenon, it has three states, or phases, it can be in. The two opposite phases, “El Niño” and “La Niña,” require certain changes in both the ocean and the atmosphere because ENSO is a coupled climate phenomenon.
What is ENSO and La Niña?
It wasn’t until the late 1960s that Jacob Bjerknes and others realized that the changes in the ocean and the atmosphere were connected and the hybrid term “ENSO” was born. It wasn’t until the 1980s or later that the terms La Niña and Neutral gained prominence.
What is the difference between El Nino and neutral ENSO?
“Neutral” is in the middle of the continuum. El Niño: A warming of the ocean surface, or above-average sea surface temperatures (SST), in the central and eastern tropical Pacific Ocean. Over Indonesia, rainfall tends to become reduced while rainfall increases over the tropical Pacific Ocean.
What do you mean by ENSO?
El Niño-Southern OscillationThe El Niño-Southern Oscillation (ENSO) is a recurring climate pattern involving changes in the temperature of waters in the central and eastern tropical Pacific Ocean.
What do you mean by ENSO Class 9?
Explanation: "ENSO" refers to the El Niño/Southern Oscillation, the interaction between the atmosphere and ocean in the tropical Pacific that results in a somewhat periodic variation between between below-normal and above-normal sea surface temperatures and dry and wet conditions over the course of a few years.
What is EL-Nino class 9 geography?
EL Nino The periodic development of warm ocean current along the coast of Peru as a temporary replacement of the cold Peruvian current, is called EL-Nino.
What is EL-Nino short answer?
El Niño is a climate pattern that describes the unusual warming of surface waters in the eastern tropical Pacific Ocean. El Nino is the “warm phase” of a larger phenomenon called the El Nino-Southern Oscillation (ENSO).
What is El Nino Class 9 Brainly?
Answer. it is an abnormal weather pattern that is caused by the warming of pacific ocean , near the equator ,of the coast of south america. this occurs when normal trade winds weaken (or even reverse) which lets the warm water that is usually found in the western pacific flow instead towards the east.
What is ENSO explain how ENSO affect monsoon in India Class 9?
1) ENSO is the fluctuations temperature between the ocean and atmosphere in the east-central Equatorial Pacific. 2) A periodic warming and cooling of the surface waters of the central and eastern equatorial pacific ocean. This affects the weather in many places like India etc. Hope it helps!!
What is El Nino Class 9 answer?
El Nino can be understood as a natural phenomenon wherein the ocean temperatures rise especially in parts of the Pacific ocean. It is the nomenclature which is referred to for a periodic development along the coast of Peru. This development is a temporary replacement of the cold current along the coast of Peru.
What is El Nino Class 9 topper?
It means "the Christ child". El Nino is complex series of climatic changes which occurs irregularly. It affects the equatorial Pacific region every few years. It is characterized by the appearance of unusually warm, nutrient-poor water off northern Peru and Ecuador.
What is El Nino Class 9 Toppr?
El-Nino is a warm ocean current that sometimes appears off the coast of Peru in South America during the month of December. It increases the surface temperature of the sea and affects the movement of monsoon winds in the Indian Ocean and causes a drought-like situation in the Indian sub-continent.
What is El Nino in Brainly?
El Niño is an abnormal weather pattern caused by the warming of the Pacific Ocean near the equator, off the coast of South America. The sun warms the water near the equator, which can make more clouds and, therefore, more rain. However, normally there are trade winds, which blow that warm water west.
What is El Nino in science?
An El Niño condition occurs when surface water in the equatorial Pacific becomes warmer than average and east winds blow weaker than normal. The opposite condition is called La Niña. During this phase of ENSO, the water is cooler than normal and the east winds are stronger. El Niños typically occur every 3 to 5 years.
Why is it called El Nino?
Fishermen off the west coast of South America were the first to notice appearances of unusually warm water that occurred at year's end. The phenomenon became known as El Niño because of its tendency to occur around Christmas time. El Niño is Spanish for "the boy child" and is named after the baby Jesus.
What is the cold phase of ENSO?
El Nino is often called the warm phase and La Nina is called the cold phase of ENSO. These deviations from the normal surface temperatures can have a large-scale impact on the global weather conditions and overall climate.
What is ENSO in the ocean?
The ENSO is a recurring climatic pattern involving temperature changes in the waters of the eastern and central tropical Pacific Ocean, and changes in the patterns of upper and lower-level winds, sea level pressure, and tropical rainfall across the Pacific Basin.
What is the effect of El Nino on the ocean?
El Nino refers to the large-scale ocean-atmosphere climate interaction linked to periodic warming in sea surface temperatures across the central and east-central Equatorial Pacific. It is associated with high pressure in the western Pacific. El Nino adversely impacts the Indian monsoons and hence, agriculture in India.
Why is El Nino called El Nino?
The phenomenon was thus named because it was first recognised by South American fishermen in the early part of the 17th century. The events, i.e., warm waters in the Pacific Ocean, tended to occur in December, hence, the name was chosen.
Where does El Nino affect?
Let us see how El Nino affects India. In a normal monsoon year (without El Nino), the pressure distribution is as follows: The coast of Peru in South America has a higher pressure than the region near northern Australia and South East Asia.
How did El Nino affect India?
El Nino and La Nina Effects on India. Since 1950, out of the 13 droughts that India faced, 10 have been during El Nino years and one in a La Nina year. This is because in general, an El Nino means lesser than average rains for India. Indian agriculture is heavily dependent on the monsoons and because of this, lesser rainfall during ...