Near small river, as along 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。