El Nino effect is closely associated with

El Niño is closely associated with the warming of the Pacific Ocean. Here are the steps that explain this phenomenon:

1. Normal Conditions: Under normal conditions, trade winds (which blow from east to west) push warm surface waters towards the western Pacific (near Australia and Indonesia). This allows cooler water to upwell along the coast of South America (near Peru and Ecuador).

2. Beginning of El Niño: Occasionally, the trade winds weaken. When this happens, the warm surface water that was piled up in the western Pacific starts to move eastwards towards the central and eastern Pacific.

3. Peak of El Nino: As the warm water moves eastwards, it suppresses the upwelling of cooler, nutrient-rich waters along the coast of South America. This leads to a rise in sea surface temperatures in the central and eastern Pacific, marking the peak of the El Niño event.

4. Effects of El Niño: The shift in sea surface temperatures can have significant effects on global weather patterns. For example, it can lead to increased rainfall in the central and eastern Pacific (including parts of the western coast of South America), and drier conditions in the western Pacific (including parts of Australia and Indonesia).

5. End of El Niño: Eventually, the trade winds start to blow again, pushing the warm water back towards the western Pacific and allowing cooler water to upwell along the coast of South America. This marks the end of the El Niño event and the return to normal conditions.

It's important to note that El Niño events can vary in strength and duration, and can have different impacts on weather patterns depending on these factors.