Which outcome results when the flow regime abruptly decreases in an alluvial river?

💡 Explanation

Aggradation occurs due to decreased sediment transport capacity. River competency diminishes, leading to Sedimentation/deposition of the alluvial load because the stream now has less energy; therefore, aggradation increases rather than erosion in the river channel.

• Which effect sharply alters tropospheric flow near subtropical high-pressure zones?
• Which mechanism causes high-altitude winds in the jet stream to deflect eastward in the Northern Hemisphere?
• Which crustal deformation occurs due to hydrated mineral formation during oceanic plate subduction?
• Which geological process is accelerated when permafrost thaws beneath an Arctic tundra oil pipeline?
• Under which condition does laterization intensify during pedogenesis?
• Which mechanism redistributes heat when a meandering jet stream develops a cut-off low?