What do you think of wind direction symbols?

Question 1: What do you think of the constellation and direction of the wind? Level: 1-2: 1 vertical bar 1 horizontal bar 3-4: 1 vertical bar 2 horizontal bar 5-6: 1 vertical bar 3 horizontal bar 7-8: 1 vertical bar. For example, (1) indicates the southwest wind with 7-8 grades, and the wind blows from southwest to northeast. (2) It means that the northeast wind with grade 7-8 is blowing, and the wind blows from northeast to southwest.

Question 2: How to draw the symbols of wind direction and grade? image.baidu/...0& ln = 3

I can't see the picture.

Take a look, it's very concise.

Question 3: How to understand the symbols of wind direction and wind force in weather forecast? What symbols are used to indicate which level of wind the wind vector represents? The wind vector is composed of wind stems and wind plumes.

Wind handle: indicates the direction of the wind, with 8 directions.

Wind feather: 3 or 4 short strokes and triangles indicate strong wind, perpendicular to the right side of the wind pole (northern hemisphere).

1- secondary: 1 vertical line 1 horizontal line

Grade 3-4: 1 vertical bar and 2 horizontal bars

Grade 5-6: 1 vertical bar 3 horizontal bar

Grade 7-8: 1 vertical bar 4 horizontal bar.

Above level 8: 1 vertical bar 1 triangle is like a small flag.

wind scale

Wind grade and symbol name Wind speed (m) * Sea surface wave height of land image (m)

0 No wind, 0.0-0.2 smoke, straight up, calm, 0.0

1 soft wind 0.3- 1.5 smoke indicates that the wind direction is at the peak of microwave 0. 1 and there is no water drop.

2 breeze 1.6-3.3 Feel the wind, and the small wave crest will not be broken by 0.2.

3 breeze 3.4-5.4 standard propagation wavelet peak rupture 0.6

4 breeze 5.5-7.9 blows dust, small waves, foam peak 1.0.

5 Strong breeze 8.0- 10.7 Waves and foam peaks in swaying young trees 2.0

6 strong wind 10.8- 13.8 wire sound waves to water droplets 3.0

7 gale 13.9- 17. 1 difficulty in walking, peak breaking, foam strips 4.0

8 strong wind 17.2-20.7 damaged branches, wave 5.5.

The 9-level gale is 20.8-24.4, with small damage to houses and rolling waves.

10 gale 24.5-28.4 uprooting trees, waves rolling and roaring 9.0

1 1 Storm 28.5-32.6 was generally damaged, and the peaks were all in water droplets 1 1.5.

12 hurricane 32.7- destructive wave +04.0

Question 4: How should the wind direction be expressed? 1. Say the wind direction first:

The unit of measurement of wind direction, expressed in azimuth.

On land, it is generally represented by 16 directions, and at sea, it is represented by 36 directions. At high altitude, it is expressed by angle.

To express the wind direction by angle means to divide the circumference into 360 degrees, the north wind (n) is 0 degrees (that is, 360 degrees), the east wind (e) is 90 degrees, the south wind (s) is 180 degrees, and the west wind (w) is 270 degrees, and the rest wind directions can be calculated from this.

In the forecast of the Central Meteorological Observatory, there are symbols on the big screen: it looks like an F, in which the "tail" (vertical downward) indicates the wind direction; "Fugan" (horizontal line on the right) indicates the magnitude of wind power, and Fugan is directly proportional to wind power.

In order to express the frequency of wind in a certain direction, the quantity of wind direction frequency is usually used, which refers to the percentage of the frequency of wind in a certain direction to the total frequency of wind in all directions in a year (month), that is,

Wind direction frequency = frequency of a certain wind direction/total observed frequency of wind direction × 100%.

From the calculated wind direction frequency, we can know which wind direction is more and which wind direction is less in a certain area.

It is observed that northerly winds (north wind, northeast wind and northwest wind) are often blown in North China, Yangtze River basin, South China and coastal areas, and southerly winds (south wind, southeast wind and southwest wind) are often blown in summer.

Unfortunately, there is no picture in hand now.

I hope I can help you.

Question 5: How does this chart look at the wind direction? What does the symbol in the upper left corner mean? The one in the upper left corner is called the wind frequency rose map. It is divided into four directions: southeast and northwest. The farther away from the center point, the wind in this direction prevails all the year round. North wind and east wind prevail here in the picture, so the industrial zone is located in the south.

Question 6: What do you think of the icons representing the level and direction of wind in geography? Level:

1- secondary: 1 vertical line 1 horizontal line

Grade 3-4: 1 vertical line and 2 horizontal lines

Grade 5-6: 1 vertical bar 3, horizontal bar 7-8: 1 vertical bar 4, horizontal bar

Above level 8: 1 vertical bar 1 triangle is like a small flag.

Wind direction: Wind direction indicates wind direction. For example, (1) indicates the southwest wind with 7-8 grades, and the wind blows from southwest to northeast. (2) It means that the northeast wind with grade 7-8 is blowing, and the wind blows from northeast to southwest.