Yalu river weather

Hello, I would like to ask which season of the Yalu River has the largest sediment concentration in a year? The season with the largest sediment concentration in Yalu River is summer. Summer is mainly affected by the southerly airflow from the ocean, and the climate is humid and rainy. The transition season is the interaction of these two kinds of control airflow, and the weather is cold, hot, sunny and rainy. When it rains, the Yalu River is washed away by rain, and the sediment concentration naturally increases.