Which regional pattern is disrupted during El Niño?

💡 Explanation

Upwelling weakens along the coast because trade winds slacken, leading to a warm surface layer blocking nutrient-rich deep water; this represents a reduction in Ekman transport, therefore coastal fisheries decline rather than thrive due to nutrient scarcity.

• Which mechanism is triggered when differential stress exceeds static friction along an existing fault line?
• Which nutrient redistribution results when Sargasso Sea gyres weaken?
• Which outcome directly limits phytoplankton growth after an upwelling event during summer stratification?
• Which outcome occurs when wind speed falls below the threshold needed to transport sand grains in a dune landscape?
• Which consequence results when Antarctic Bottom Water formation significantly slows down in the Weddell Sea?
• Which event triggers landscape evolution of oxbow lake's infill?