The influence of Coriolis force on sedimentation of the Yellow River

TL;DR

This paper investigates how the Coriolis force affects sedimentation and erosion patterns on the right bank of the Yellow River, highlighting its impact based on sediment content.

Contribution

It provides a detailed analysis of the Coriolis force's role in sediment transport and bank erosion specific to the Yellow River's Lanzhou section.

Findings

Coriolis force increases erosion on the right bank in low sediment rivers.

Coriolis force promotes sediment deposition on the right bank in high sediment rivers.

Siltation of sands and pebbles on the right bank is linked to Coriolis-induced sediment movement.

Abstract

In the northern hemisphere, river subjects the right bank to the pressure generated by the Coriolis force, which will increase the erosion of the river on the right bank. On the other hand, the Coriolis force also causes the sediments in the water to move to the right bank, which will increase the sediment deposition on the right bank of the river. Therefore, for rivers with low sediment content, Coriolis force will increase the erosion of river water on the right bank; for rivers with high sediment content, Coriolis force will increase the sedimentation of sediment on the right bank. It is noted that the Lanzhou section of the Yellow River has siltation of sands and pebbles to the right (south) bank. It is believed that this is caused by the Coriolis force moving the sands and pebbles to the right bank.