The Type Judgment of Daytime Wind at Duchang Hydrological Station

The daytime wind type of Duchang Hydrological Station is lake wind. Duchang hydrological station is close to the lake, and the wind blowing belongs to the lake wind. Lake-land wind is a local weather and climate phenomenon that winds blow from the mainland to the lake area at night and from the lake to the land during the day.

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.