As you sail along you can spot the following effects. 在航⾏时，你可以通过以下现象来判断⻛⼒变化。


Differing strengths of wind make fish scales or dark patches (ripples) on the surface. Smooth or calmer water generally indicates lower wind speed, a temporary lull. As the wind freshens, or during a gust, the density of such effects increases, causing the water to become disturbed or choppy, possibly leading to the formation of small waves.


不同强度的⻛会在⽔⾯上形成⻥鳞状的纹理或深⾊斑块（涟漪）。⽔⾯较为平滑或平静，通 常意味着⻛⼒较⼩，或短暂的弱⻛。当⻛⼒增强或遇到阵⻛时，这些纹理会变得更加密集， 使⽔⾯变得紊乱或起伏不平，甚⾄可能形成⼩波浪。


If you sail closely behind or downwind of another sailor, you will be affected by the water state and wind turbulence from their boat.


如果你紧跟在另⼀条船后⽅，或位于其下⻛航⾏，可能会受到对⽅带来的⻛浪⼲扰。


Gauging the wind strength is a skill that you’ll gradually develop. Hand-held wind-speed readers (anemometers) can be useful as a guide to wind strength.


判断⻛⼒强弱是⼀项需要逐步培养的技能。⼿持式⻛速仪（⻛速计）可作为判断⻛⼒⼤⼩的 参考⼯具。


What’s under the Water? ⽔下的情况


The gradient of the beach will determine what the sea state is at different tide levels. This is why it is always a good idea to have a look at a new location at different states of tide and ask others for advice so you can gain more knowledge.


海滩的坡度会影响在不同潮位条件下的海况。这也是为什么在新的区域航⾏时，最好能在不 同潮汐状态下进⾏观察，并向他⼈请教，以积累更多的知识和经验。


Water Depth ⽔深


Tides flow faster in deeper channels than in shallow water. For example, in an estuary, where the water is likely to be deeper in the middle, the tidal flow will be greater in the middle than it will be by the shore.


潮流在深⽔航道中的流速通常快于浅⽔区域。例如，在河⼝地区，中间⽔域通常较深，因此 中部的流速往往⽐靠近岸边的区域更强。


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