The Type Judgment of Daytime Wind at Duchang Hydrological Station
The types and causes of daytime winds at Duchang Hydrological Station are as follows: 1. Duchang Hydrological Station is located in subtropical humid monsoon climate zone. Due to the difference of specific heat between land (rock) and lake (water), the land temperature is higher than the lake temperature during the day and lower than the lake temperature at night. The difference of temperature and heat causes the difference of air pressure, which forms the wind that changes day and night. 2. During the day, the air temperature on the land is higher than that in the lake, resulting in low air pressure near the land and high air pressure near the lake, and the wind blows from the lake to the land. 3. At night: the temperature on land is lower than that of the lake, resulting in high pressure near the land and low pressure near the lake, and the wind blows from the land to the lake.