Study on Large-Scale Horizontal Eddies Inside and Outside Forested Areas in the Edogawa River

Key Points

• To understand the occurrence of large-scale horizontal eddies inside and outside forested areas, focusing on the impact of complex topography and vegetation.
• Conducted field observations in the Edogawa River.
• Applied numerical calculations using vegetation density data from observations.
• Considered vegetation resistance and turbulence energy in analysis.
• Compared numerical results with observational data during small-scale flooding.
• Identified significant differences in vegetation resistance effects based on flood scale.
• Revealed variations in velocity distribution across flood events.
• Suggests large-scale horizontal eddies have distinct vertical structures.