Traditional Culture Encyclopedia - Weather forecast - What is the wind level of 1 1 meter per second?

What is the wind level of 1 1 meter per second?

One second, 1 1 meter is a 6-level wind.

In Beaufort scale, the wind with the wind speed of 10.8 ~ 13.8 m/s is defined as level 6 gale. A big wave is formed on the sea surface, the foaming range is expanded, and waves are gradually formed. The branches on the ground are shaking, the wires are whirring, and it is difficult to lift the umbrella.

Level 6 wind is called strong wind, and the wind speed 10.8 ~ 13.8 m/s, which is equivalent to 39-49 km/h. Fishing boats are half-sail, so you must pay attention to the risks when fishing. A big wave is formed on the sea surface, the foaming range is expanded, and waves are gradually formed. The branches on the ground are shaking, the wires are whirring, and it is difficult to lift the umbrella. As the saying goes: the wind reaches level 6, the wires ring, and it is difficult to move forward with an umbrella in the wind.

Extended data:

Three-dimensional dynamic spectrum

Using infrasound receiver, the infrasound P-t curve of strong wind is measured in the form of infrasound three-lattice. Their three-dimensional dynamic spectra are obtained by fast Fourier transform.

4 ~ 8 gale can produce infrasound with strong amplitude and measurable direction. They have many short-period components of 5, 8, 10, 12, 15 min, and long-period components of 30 ~ 65 min, which are connected from short period to long period at regular intervals. The stronger the wind, the more obvious the connection.

The average value of strong amplitude of three-dimensional dynamic spectrum of gale infrasound is related to the magnitude of wind power level, and the former increases with the increase of the latter. According to the three-dimensional dynamic spectrum of infrasound, the wind power level can be estimated by empirical formula.

Baidu Encyclopedia-Level 6 Wind