Beneficial influence of lake wind on atmospheric environment of Poyang Lake

The lake wind blows from the lake, which reduces the urban heat island effect, increases the air humidity and improves the air quality of the city.

Wind is one of the climatic factors. From the perspective of the integrity of geographical environment, wind has direct or indirect effects on climate, topography, hydrology (airflow in ocean currents), soil and biology.

Wind, as a common phenomenon in nature, has been described by many ancient people, such as the description of spring breeze: "A tree with thousands of branches is softer than gold and softer than silk." ; Describe Xia Feng: "The bamboo forest is densely populated with insects, sometimes it is cool, but there is only wind." "In the fourth month, the south wind blows the yellow barley plain."

Describe the autumn wind: "The autumn wind is bitter and the white dew is frost. The soft strips are full of energy, and the green leaves are yellow day and night. " ; Describe the winter wind: "The north wind rolled white grass and crushed them. Eight In the snow crossed the Tatar sky. Just like the spring wind, it blows at night and blows open the petals of 10 thousand pear trees. "

Lake wind wave is a kind of periodic oscillation and fluctuation of water particles caused by wind force acting on the lake surface. The magnitude of wind waves depends on factors such as wind speed, wind path, wind direction, wind duration, water depth and friction stress in lake water.

Wind and waves can strengthen the convection and turbulence of the lake, thus affecting the transport of sediments, the diffusion of pollutants and the migration of plankton in the lake. The heavy wind and waves also pose a threat to the navigation of ships in the lake, water operations and flood control in flood season.

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.

During the day, the lake is breezy. It brings moist air and even abundant precipitation, which makes the environmental water content bigger. At night, the land wind blows. Take away the temperature on the land, and the cooling speed will be accelerated at night. ?