Which mechanism modifies global precipitation patterns during an El Niño event's mature phase?

💡 Explanation

During El Niño, the weakening of trade winds reduces upwelling in the eastern Pacific because surface waters become warmer, diminishing the usual temperature gradient. Therefore, weakening trade winds and upwelling influence precipitation by altering atmospheric circulation, not strengthened jet streams, heat transport, or ozone formation.

• Which climatic outcome correlates with increased Saharan Dust transport?
• Upriver sediment load decrease causes increased channel sinuosity, producing which feature?
• Which risk to coastal infrastructure increases when deep-sea earthquakes trigger underwater landslides near a subduction zone?
• Which outcome occurs when coastal upwelling is disrupted by increased freshwater runoff?
• Which effect explains deflection of trade winds due to the Earth's spin?
• Which mechanism dictates aftershock frequency following a large strike-slip earthquake along a transform fault?