Near small river, as al0ng the Oregon coast, upwelling can occur when winds move the low-salinity surface layer seaward and the cold, upwelled waters underneath are exposed.

• 靠近小河口地区，如俄勒冈州海岸，当风把低盐度的表层水向海洋方向吹时，涌升现象就会出现。这时，下面寒冷的、涌升上来的海水就暴露了出来。