| 释义 |
upwelling
up·well·ing U0140500 (ŭp-wĕl′ĭng, ŭp′wĕl′-)n.1. The act or an instance of rising up from or as if from a lower source: an upwelling of emotion.2. A process in which cold, often nutrient-rich waters from the ocean depths rise to the surface.up•well•ing (ʌpˈwɛl ɪŋ)
n. 1. an act or instance of welling up. 2. an upward flow of cold, heavy deep-sea water, laden with nutrients, as warm surface water is drawn away by offshore currents. [1850–55] Translationsupwelling
upwelling[¦əp¦wel·iŋ] (oceanography) The process by which water rises from a deeper to a shallower depth, usually as a result of divergence of offshore currents. upwelling
upwelling an upward movement of water masses that results in nutrients being brought to the surface. Regions of upwelling are regions of high ocean productivity, occurring, for example, off the Peruvian coast where there are major stocks of anchovies. |