When is it most likely to fog up in West Lake

Generally, there is a lot of fog in the morning in autumn and winter, and it is generally very cold after the fog, and the temperature is relatively high during the day, and the air can hold more water vapor. This is the morning fog, the temperature will rise after the fog, the fog at night, is due to the temperature drop, the air is quite humid, when it cools to a certain extent, a part of the water vapor in the air will condense out, into a lot of small water droplets, suspended in the air layer near the ground, so the fog is more for a long time, and the temperature will drop after that.

The specific knowledge is that saturation is reached when the water vapor contained in the air reaches its maximum. And the higher the temperature, the more water vapor can be contained in the air. 1 cubic meter of air, when the air temperature is 4, the maximum amount of water vapor that can be contained is grams; When the air temperature is 20, the maximum amount of water vapor that can be contained in 1 cubic meter of air is grams.

If the air contains more water vapor than the amount of saturated water vapor at a certain temperature, the excess water vapor will condense, and when enough water is enough to combine with the tiny dust particles in the air, and the water molecules themselves will stick to each other, becoming small water droplets or ice crystals. The amount of water vapor in the air exceeds the saturation amount and condenses into water droplets, which is mainly caused by the drop in air temperature.

If the ground heat is lost, the temperature drops, and the air is quite humid, then when it cools to a certain extent, a part of the water vapor in the air will condense and become many small water droplets, suspended in the air layer near the ground, which is fog. Both it and clouds are caused by a drop in temperature, and fog can actually also be said to be clouds close to the ground.

The temperature is relatively high during the day, and the air can hold more water vapor. But at night, the temperature drops, and the ability of the air to hold water vapor decreases, so some of the water vapor condenses into fog. Especially in autumn and winter, due to the long nights and the chance of cloudless wind, the ground heat dissipation is more rapid than in summer, so that the ground temperature drops sharply, so that the water vapor in the air near the ground is easy to reach saturation in the second half of the night to the morning and condense into small water droplets, forming fog.

In autumn and winter, the morning temperature is the lowest, and the fog is at its thickest.

Formation conditions: A kind of fog is formed by radiative cooling, mostly in the night and early morning when it is clear, breezy, and the water vapor near the ground is more abundant and stable, or there is a temperature inversion, which is called radiation fog in meteorology.

The other is the horizontal movement of warm and moist air, passing through the cold ground or water surface, and the water vapor in the air is gradually liquefied by the cold and forms a fog, which is called advection fog in meteorology. Sometimes the fog that is formed by both causes is called mixed fog.

It can be seen that these conditions can be met in late autumn and early winter, especially in the morning of late autumn and early winter.

Smog in cities is caused by another cause, and that is human activity. Morning and evening are the peak period of heating boilers, and a large number of pollutants such as smoke and dust suspended solids and automobile exhaust are not easy to diffuse under the conditions of low air pressure and low wind, and combine with the water vapor in the low-level air, which is relatively easy to form smoke (fog), and this smoke (fog) often lasts for a long time.

Prince Bay. As soon as the sky was bright, a cloud of mist rose on the water surface of Prince Bay, white and expansive, like a fairyland on earth.

This is called vapor mist. If the surface of the water is warm and the air is cold, when there is a large difference in temperature, the water vapor will continue to evaporate from the surface of the water, break into the cold air, and then condense from the cold air to become a vapor mist.

This is usually the case when cold air covers warm water in inland lakeside areas. In autumn and winter, whenever the cold air goes south, in the morning when the weather is sunny and windy, the warm water surface is not too late to cool down, and this kind of steam mist is filled.

Prince Bay Park is located in the southwest corner of West Lake, at the foot of Lychee Peak in Nanping Mountain. According to the Southern Song Dynasty royal family Zhuang Wen, Jing Xian two liters dressed as the prince to bury this name was obtained. Prince Bay was originally a lake bay, washed by the wind and rain of the mountains, and the sediment was silted into a swamp depression. It is a large-scale park that combines the charm of the countryside and the wild taste of the mountains.

Introduce. The total area of Prince Bay Park is acre. The whole park is separated by garden roads and waterways, and is roughly divided into three scenic spots: east, middle and west.

The eastern scenic spots are Wangshanping, Yile Garden, etc. Wangshan Ping is a large lawn, the flat surface is wide, the field of vision is broad, you can not only overlook the green mountains, but also can lie on the grass or rest, or play.

The big lawn Nanrui, there is a Tai Chi circular pavement made of light red, gray and black grinding stones, and the jade garden is jagged and adjacent, leaning on each other. The slope of the hill is full of ornamental flowers and trees such as magnolia, smiling and cherry blossoms, and the lower layer is lined with hydrangea, firethorn and root flowers, the flower shadow shines on the eyes, and the fragrance is refreshing.

In February, the fog is misty, and the scenery of Wuxi Lake is outstanding, like a fairyland of Yaochi; In April, it rained a lot, and Yuxi Lake seemed to be real and illusory, with a unique style; On the night of October, when the moon is in the sky, boating on the lake, tasting wine and admiring the moon, free and freehand; In December, the snow is covered in snow, and the snow West Lake is like a small jasper stepping on the snow. Therefore, the West Lake has different scenery in different seasons.