What is the El Nino phenomenon?
“El Nino” (meaning child of God in Spanish, also known as the baby boy) is the word used to refer to the unusual warming phenomenon of surface ocean water in the central equatorial region. Central and Eastern Pacific.
What is the cause of the El Nino phenomenon?
The wind is weak
In a normal state, equatorial winds blow strongly from East to West, pushing warm sea water from the equatorial region to the Western Pacific Ocean, leaving cold sea water to rise from the seabed in the East. When the equatorial wind weakens or blows in the opposite direction, warm sea water will flow back into the Eastern Pacific Ocean, causing a warming of surface sea water in this area.
Earth’s rotation
The change in the Earth’s rotation speed over a short period of time is inversely related to the change in sea surface temperature in the eastern equatorial Pacific Ocean, that is, when the Earth’s speed accelerates over a short period of time, The sea surface temperature of the eastern equatorial Pacific Ocean dropped; On the contrary, when the Earth’s rotation speed slows down, the sea surface temperature of the eastern equatorial Pacific Ocean rises. This clearly shows that the slow decrease in Earth’s rotation is likely the main cause of the El Nino phenomenon.
How does El Nino affect the weather?
1.Changes in wind patterns: El Nino causes a change in wind patterns over the Atlantic Ocean. Winds shift direction and become stronger in the Southeast Pacific, affecting air circulation and forming unusual low and high pressure systems. This could lead to changing rainfall and drought patterns across regions such as Asia, Africa and the Americas.
2. Increased sea surface temperature: El Niño increases sea surface temperature in the Southeast Pacific region. This increase in temperature can cause changes in temperature patterns and affect cloud and rainfall patterns. Higher sea surface temperatures can create hotter and drier climates in some areas.
3. Impact on the global weather system: El Nino can create unusual climate conditions and affect the global weather system. It could cause stronger storms or less storms in some areas.
4. Effects on the dry and rainy seasons: El Nino can cause changes in the dry and rainy seasons in many areas.
El Nino Time of El Nino phenomenon
The phenomenon lasts 8 – 12 months, or longer, usually appearing once every 3 – 4 years, but sometimes it is thicker or less frequent.
The consequences come from El Nino
The harmful effects of the El Nino phenomenon are huge and complex, causing storms, floods, droughts, heat and forest fires in many areas of the world. This phenomenon also affects agricultural productivity, fisheries, and human health and security. Some of the hardest hit regions are Southeast Asia, South America, Africa and Australia.
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