upwelling


Also found in: Medical, Encyclopedia, Wikipedia.

up·well·ing

 (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]
Translations
remontée des eaux froides
References in periodicals archive ?
"Life in Earth's oceans depends on upwelling (upward flow) which returns nutrients from the dark depths of the ocean to the sunlit portions of the ocean where photosynthetic life lives,"A Stephanie Olson, a geophysicist from the University of Chicago, said in a (https://www.eurekalert.org/pub_releases/2019-08/gc-sss082119.php) statement .
Scientists studied data collected by the Rocket Experiment for Neutral Upwelling 2 (RENU2) mission, which was launched from Norway in 2015.
She said her agency was also looking at implementing a single growth cycle, from the current twice a year, to allow the lake 'to rest.' This means that fish stocking will not be allowed from January to May as reduced oxygen level and sulfur upwelling, which commonly triggers a fishkill, happen during this time of the year.
BATANGAS CITY-- The municipal-ity of Talisay, Batangas reported that fish cage owners lost more than P6.8 million after the upwelling of sulfur in Taal Lake killed bangus and tilapia last Jan.
This important geodynamic change induced upwelling of asthenosphere material, which led to adakitic magmatic activity and east-west extension.
Other important hydrological characteristics include mesoscale eddies, which are usually present year-round with seasonal variations (Kurczyn, Beier, Lavin, & Chaigneau, 2012), winter/spring coastal upwelling (Torres-Orozco, Trasvina, Muhlia-Melo, & Ortega-Garcia, 2005; Lopez-Sandoval, Lara-Lara, Lavin, Alvarez-Borrego, & Gaxiola-Castro, 2009) and an extremely shallow upper layer of the oxygen minimum zone (OMZ, 9.0 [micro]mol L-1) which reaches depths of ~50 m along the coast (Zamudio, Hurlburt, Metzger, & Tilburg, 2007; Cepeda-Morales, Beier, Gaxiola-Castro, Lavin, & Godinez, 2009).
A process known as upwelling, it occurs on the west coasts of continents--and it is part of a never-ending loop in which C[O.sub.2] levels in the surface ocean rise and fall in a natural rhythm.
In the Gulf of California (GC) previous studies have shown that mesoscale structures such as fronts, upwelling, and eddies influence the larval fish distribution as well as the structure and diversity of their species assemblages (Danell-Jimenez et al., 2009; Contreras-Catala et al., 2012; Avendano-Ibarra et al., 2013).
"This upwelling is normally sandwiched along the shelf break--between relatively fresh, cold water flowing south from the Canadian Arctic along the coast, and saltier, warmer waters from the Gulf Stream farther offshore."
"The upwelling we detected is like a hot air balloon, and we infer that something is rising up through the deeper part of our planet under New England," Rutgers geophysicist Vadim Levin said in a statement.
Ajayamohan and Dr Sandeep, researchers from NYUAD, and Dr Vinu Valsala from the Indian Institute of Tropical Meteorology, participated in this study, entitled, "Intensification of upwelling along Oman coast in a warming scenario." Coastal upwelling is a process in which deep, cold water rises towards the surface along coastlines.