1. downwelling - Noun
2. downwelling - Verb
The sinking of a higher-density medium through a lower-density one.
A current caused by the clash of two currents causing one to dive down.
downwelling
present participle of downwell
It is due to a summer-to-winter circulation giving rise to upwelling at the summer pole and downwelling at the winter pole. Source: Internet
The physical factor that influences zooplankton distribution the most is mixing of the water column ( upwelling and downwelling along the coast and in the open ocean) that affects nutrient availability and, in turn, phytoplankton production. Source: Internet