There are three basic processes that cause a change in oceanic salinity. One of these is the subtraction of water from the ocean by means of evaporation-- conversion of liquid water to water vapor.

• 导致海洋的盐度变化的基本过程有三个，其中之一是通过蒸发的方式，即把液态水转化为水蒸气来减少海洋中的水分。