An instance or amount of seawater, magma, or other liquid rising up.
‘an upwelling of magma has caused long-lasting volcanic activity’
‘The question of why the plates move gets passed on to the geologists, who appeal to an upwelling of magma that pushes them apart.’
‘In certain areas of these coral reefs, high tidal ranges generate daily upwelling during flood tides.’
‘This is reinforced by the presence of the upwelling, north-flowing, cold Humboldt Current along the west coast of South America, which prevents precipitation in the coastal regions.’
‘They can often be found in areas with upwellings or convergence zones that bring food to the surface.’
‘When at sea, they concentrate over the continental shelf or over upwellings of cold, nutrient-rich water.’
‘They are most commonly found over upwellings or the continental shelf, rarely close to shore.’
‘Coastal upwelling is the principle oceanographic phenomenon in the Caribbean associated with higher biological productivity.’
‘The origin of these exotic features remains a mystery but may be due to something simple, such as the uneven upwelling of ice sheets.’
‘At sea, they gather at upwellings and convergence zones where food is brought to the surface.’
‘This questions the role upwelling plays in affecting juvenile rockfish condition.’
‘I make the dash, fin downward against an upwelling, and quickly get into position behind another large outcrop of rock.’
‘The increased upwelling initially brings more phosphate to the surface waters, thereby increasing productivity.’
‘As the winds switched to an equatorward direction, coastal upwelling ensued and the Columbia plume was replaced by cold, salty water nearshore.’
‘Along the Oregon coast, upwelling occurs when spring winds consistently push warmer surface water offshore.’
‘When an El Niño begins, the patterns of winds and ocean upwellings change, and these changes affect weather around the world.’
‘These treatments simulated water temperatures that organisms would experience on the Oregon coast during summers with either very intense upwelling or no upwelling, respectively.’
‘This overall process varies locally, particularly in areas with a high degree of upwelling that brings nutrients from deep waters and fuels faster than normal surface-water productivity.’
‘We suggest that the Atlantic basin is more efficient than the Pacific in its production for the same degree of upwelling.’
‘Studies off northwest Africa found they favor areas where the seabed slopes steeply, creating strong currents and upwellings, which tend to support higher prey densities.’
‘Wind patterns can predict ocean currents like the upwellings that fostered plankton, a clue to today's oil deposits.’
adjective
(especially of emotion) building up or gathering strength.
‘upwelling grief’
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