Wind Strength and the Beaufort Scale ⻛⼒和蒲福⻛级


Wind strength is described in the Beaufort Scale below. Learn to recognise the strength of the wind by what you see ashore and afloat.


下表是描述⻛⼒的蒲福⻛级表。学会根据岸上和海上看到的现象来判断⻛⼒。 Force


Wind Speed 0 Description Signs on Land Less than 1 knot Calm


Flags hang limply, leaves do not move on trees, smoke rises vertically.


Effects on Sea


Glassy sea, boats drift with limp sails. Heel the boat to leeward a little to help the sails hold their shape. Move gently and slowly in the boat.


⻛⼒等级 ⻛速 0 ⼩于1节


描述 ⽆⻛


陆地现象


旗帜松弛地下垂，树叶不 动，烟雾垂直上升


海况


海⾯如镜静，船帆松弛，船 只随波漂流。可将船往下⻛ 稍微倾斜，有助于保持帆 形。在船内移动时，动作应 轻且慢。


1


1–3 knots


Light Air


Light flags start to stir and smoke drifts away from vertical.


Small catspaws and ripples on surface, and sails fill. Sit forward in the boat and allow it to heel slightly to keep sails full. Move gently in the boat.


2 4–6 knots


Light Breeze Flags start to indicate wind direction and leaves rustle on trees.


Steady light wind for sailing. Boats are still underpowered but can be sailed upright. Use smooth movements during manoeuvres to maintain speed.


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