Which geomorphic consequence results when a river's sinuosity increases significantly near an oxbow lake formation?

💡 Explanation

When a river's sinuosity (curve length) increases nearing oxbow formation, the stream power per unit length decreases because energy is dissipated over a longer path, this leads to accelerated deposition especially during floods. Therefore Sediment accumulation speeds up oxbow lake filling, rather than valley incision or bank stability which results from fundamentally different hydrodynamics.

• Which ecological consequence results downstream when coastal upwelling weakens due to reduced offshore wind stress?
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• Which long-term outcome results when elevated atmospheric carbon dissolves into groundwater percolating through karst landscapes?