downwelling

(redirected from downwellings)
Also found in: Medical.

downwelling

[′dau̇n‚wel·iŋ]
(oceanography)
Mentioned in ?
References in periodicals archive ?
Turbidity data shows the clarity of the water and altimetry data shows the upwellings and downwellings at the ocean's surface that cause macro ocean currents and cause nutrient-rich waters to rise from the bottom, bringing with it plankton, bait fish and the pelagic fish targeted by fisherman.
The situation where a sequence of upwellings is followed by downwellings of comparable extent is rarely observed; for example, upwelling-downwelling cycles in a sensitive coastal system are modelled in [5].
Coastal upwellings and downwellings are generally not periodic phenomena.
The present study of the influence of upwellings and downwellings on water properties in the Gulf of Finland partly relies on the data from the mooring stations near the southern coast of the Gulf in 1995-1996.
Two strong downwellings (on 24 July and 27 August) and two smaller ones (on 9 July and 20 July) were observed in the same regions during the period of observations in 1995 (Fig.
The presented results of field measurements confirm that sequences of upwellings and downwellings are rather common phenomena in the summertime near the southern coast of the Gulf of Finland.
Further evidence of the influence of the up- and downwellings provide measurements, made in 1990, when a fresher water stripe was observed in the middle of the gulf.
This investigation supports the opinion that sequences of up-and downwellings are the most probable mechanism explaining the existence of the fresher water observed in the middle of the Gulf of Finland.
The changing wind regime in the coastlines of the Baltic Basin might have caused an alternation of upwellings and downwellings (Fig.
The mechanism supposedly regulating the primary bioproductivity and oxygen content of bottom waters and sediment of the deep shelf was alternation of wind-induced up- and downwellings.
Eustasy probably affected the configuration of the basin, thereby being related to the up- and downwellings and redox changes.
Olson sees similar sinking features in his internally heated oil tanks, and other researchers have observed the sheet-like downwellings in computer models of convection.