Excuse me, what is the phenomenon from the first grade wind to the tenth grade wind

1, land phenomenon: smoke can indicate the wind direction, but the wind vane can't turn. Sea surface phenomenon: slight waves.

Level 2, land phenomenon: the face feels windy, the leaves make a slight noise, and the weather vane can turn. Sea surface phenomenon: sea surface phenomenon: small waves

The third level, land phenomenon: leaves and twigs swing endlessly and flags are displayed. Sea surface phenomenon: small waves

Level 4, land phenomenon: blowing up dust, paper and leaves on the ground, and the twigs of trees are inching. Sea surface phenomenon: light wave

Level 5, land phenomenon: twigs with leaves are swaying, and there are wavelets on the inland water surface. Sea surface phenomenon: medium wave

Level 6, land phenomenon: branches swing, wires whir, and it is difficult to carry umbrellas. Sea surface phenomenon: big waves

Level 7, land phenomenon: the whole tree shakes and it is inconvenient to walk in the wind. Sea surface phenomenon: huge waves

Grade 8, land phenomenon: micro-branches are broken, and people feel great resistance to progress. Sea surface phenomenon: fierce waves

Ninth grade. Land phenomenon: buildings are damaged (chimney tops and roof tiles move). Sea surface phenomenon: rough waves.

10, land phenomenon: rare on land, which can uproot trees and seriously damage buildings. Sea surface phenomenon: wild waves?

Extended data:

1, the formation of wind: wind is a natural phenomenon caused by air flow, which is caused by solar radiation heat. Sunlight shines on the earth's surface, causing the surface temperature to rise, and the surface air to expand and become lighter and lighter. After the hot air rises, the cold air with low temperature flows in horizontally, and the rising air falls down because it gradually cools and becomes heavier. Because the surface temperature is high, it will heat up the air, and this airflow will produce wind.

2. Wind speed refers to the horizontal distance of air flow per unit time. According to the phenomenon caused by the wind to the ground objects, the wind is divided into 13 grades, which are called wind grades. The "East Wind Level 3" that people usually hear in the weather forecast refers to the "Beaufort Wind Level". "Beaufort Wind Scale" is a wind scale determined by Francis Beaufort in England in 1805 according to the influence degree of wind on objects on the ground (or at sea), and * * * is divided into 0~ 17.

References:

Baidu encyclopedia? wind