The formation of sea ice causes the concentration of salt in surface waters to increase; less sea ice would mean a smaller increase in the concentration of salt.
海冰的形成导致表水中盐的浓度增加；海冰的减少意味着盐浓度的增加幅度较小。
The yellow outline shows the median sea ice extent observed by satellite sensors in September and March from 1979-2000. "extent" is the total area with an ice concentration of at least 15 percent.
黄色勾勒出由卫星传感器自1979——2000年所观测到得海冰面积的在九月和三月中间范围。
The yellow outline shows the median sea ice extent observed by satellite sensors in September and March from 1979-2000. "extent" is the total area with an ice concentration of at least 15 percent.
黄色勾勒出由卫星传感器自1979——2000年所观测到得海冰面积的在九月和三月中间范围。
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