How many levels are there in the north wind of eight meters per second and the northwest wind of eight meters per second?

1. According to the wind level, the north wind of 8 meters per second is level 5.

2. Wind force refers to the intensity of wind blowing on objects.

3. Generally speaking, according to various phenomena caused by wind blowing on objects on the ground or water surface, the magnitude of wind power is divided into 12, with the minimum being 0 and the maximum being 12.

4. Wind speed is the forward speed of the wind.

5. The greater the pressure difference between two adjacent places, the faster the airflow, the greater the wind speed and the greater the wind force.

6. So the magnitude of wind power is usually expressed by wind power.

7. Wind speed is expressed in meters per second or kilometers per hour.

8. When releasing the weather forecast, the formula is "from all the way to nine, all levels are multiplied by two".

9. Meaning: For winds from 1 to 9, the maximum wind speed can be roughly obtained by multiplying each level by 2.

10. For example, the maximum speed of class 1 wind is 2m per second, class 2 wind is 4m per second, class 3 wind is 6m per second, and so on.

1 1. There are transitional figures between different levels of wind, such as1-2m per second for the first level wind, 2-4m per second for the second level wind and 4-6m per second for the third level wind. By analogy, the wind power can be converted into the corresponding wind speed, that is, the distance of air flow in unit time, in meters per second, and its conversion formula can be used for reference.

12. Grades four to nine are not difficult to calculate, and the series is reduced by two times three.

13. Ten to twelve are rare, so ten is easy to remember.

14. Ten-level wind speed is twenty-seven, with one more level every four levels.

15. That is, the wind speed of primary air is equal to 1m/s, and the wind speed of secondary air is equal to 2m/s. ..

16. Add 1 to the wind level of the tertiary wind, and the wind speed is equal to 4m/s. ..

17. Subtract 2 from level 4 to level 9 and multiply it by 3 to get the wind speed of the corresponding level.

18. 10 to 12 are the same. The wind speed of 10 is 27m/s, and then the wind speed of 1 1 is 3 1m/s by adding 4, and the wind speed of 12 is 35m/s. ..