Which outcome occurs when decreased sea ice amplifies coastal erosion?

💡 Explanation

More open water creates greater fetch; the wave energy increases due to positive feedback. Sea ice loss causes greater erosive effect, rather than slower erosion. This increase is due to longer duration of ice-free conditions; therefore the wave fetch has a multiplicative effect.

• Which process limits the downstream extent of an alluvial fan in a confined valley?
• Which flow regime change occurs during alluvial terrace formation?
• Which coastline change occurs when wave refraction concentrates energy unevenly?
• What effect does increased sediment influx upstream cause in an alluvial meander bend?
• Which outcome results from increased subtropical high pressure due to a weakening Hadley cell?
• Which ecological consequence results when a persistent high-pressure system reduces coastal upwelling along the California coast?