The reason why my country’s Fujian coast often suffers from drought

The coast of Fujian is located in the subtropical zone, of which the area north of the Minjiang River estuary is the mid-subtropical zone, and the area south of the Minjiang River estuary is the south subtropical zone. The climate and precipitation are affected by the mountains on both sides of the Taiwan Strait and the monsoon. Constrained by circulation and regulated by the ocean, it has typical subtropical oceanic monsoon climate characteristics. (In an oceanic monsoon climate, the summer temperature is not too high and is a little lower than that of a subtropical monsoon climate. The winter temperature is not too low and is a little higher than that of a subtropical monsoon climate. The annual range of temperature and precipitation is smaller. Most of the oceanic monsoon climate is distributed in some small islands in the ocean, facing the sea on all sides and greatly affected by the ocean, so the oceanic characteristics must be significant). The drought in Fujian is particularly severe in autumn

Autumn (October-November) month)?, is the period when the atmospheric environment changes from summer to winter. In early October, the backline of the subtropical high further returned to around 22°N, the southern branch of westerly winds established, the East Asian trough deepened, and the surface cold high wedge extended to South China. The southward movement of cold air from the north has become cyclical. Although the cold air is not too cold, Strong, but due to the large north-south pressure gradient, significant cooling and windy weather often occur. A basic feature of the weather situation in autumn is that when the subtropical high in the South China Sea is strong, the weather will be sunny and rainy, and droughts are prone to occur.