Table 3 Beaufort wind scale (GB/T 35227—2017, 2017).

From: Effects of water-fertiliser coupling on the photosynthesis and quality of Lycium barbarum based on predicted crop evapotranspiration (ETc)

Wind scale

Designation

u10(m s−1)

Range

Average

0

Calm

0.0–0.2

0.0

1

Light

0.3–1.5

1.0

2

Slight

1.6–3.3

2.0

3

Gentle

3.4–5.4

4.0

4

Moderate

5.5–7.9

7.0

5

Fresh

8.0–10.7

9.0

6

Strong wind

10.8–13.8

12.0

7

High wind

13.9–17.1

16.0

8

Gale

17.2–20.7

19.0

9

Strong gale

20.8–24.4

23.0

10

Whole gale

24.5–28.4

26.0

11

Storm

28.5–32.6

31.0

12

Hurricane

32.7–36.9

35.0

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