"marine downwelling"^^ . "2010-03-16T12:16:11Z"^^ . "A marine downwelling describes a net current of marine surface water towards deeper regions of the water column. Marine downwellings are usually caused by differences in the density (and hence, temperature and salinity) of seawater."^^ . "ENVO:01000064"^^ . . "pbuttigieg"^^ . "ENVO"^^ . .