Sentences with phrase «upwelling occur»

Changes in upwelling occur at 20 to 30 year intervals and have for a very long time.

Upwelling occurs off the coast of Newfoundland and Labrador where the Gulf Stream and the Labrador Current meet.

A stronger upwelling occurs.

When we analyzed the spring and summer period when upwelling occurs (April through September), there is no increasing trend (− 0.0001, p = 0.884); the positive trend comes from an analysis of October through March only (0.021, r2 = 0.039, p < 0.001) when downwelling occurs.

BTW, I think it's interesting to note that meridional overturning warms the planet while equatorial overturning cools the planet (or at least the surface by helping to break up the thermocline where the upwelling occurs).

In the Pacific Southern Hemisphere this region of upwelling occurs along the coast of South America - the Humboldt Current.

Coastal upwelling occurs where Ekman transport moves surface waters away from the coast; surface waters are replaced by water that wells up from below.

Not exact matches

A second modelling study provides information that gives a better understanding of the biological response in Peru's upwelling to disturbances that occur in the equatorial Pacific.

Climate simulations suggest that that upwelling has generally cooled Earth's climate, stifling about 0.1 °C to 0.2 °C in warming that would have occurred by 2012 if winds hadn't been inordinately strong, the researchers reported online yesterday in Nature Climate Change.

A study published in Nature today shares the discovery that large - scale upwelling within Earth's mantle mostly occurs in only two places: beneath Africa and the Central Pacific.

Some of the structure off the coast of Chile may also be consistent with enhanced upwelling, something that was deduced to occur during the 20th century.

Lowest pH (7.8) and highest pCO2 (658.3 µatm) values measured during a cold - water intrusion event in the non-upwelling season were similar to those minimum values reported from upwelling season (pH = 7.8, pCO2 = 643.5 µatm), unveiling that natural acidification also occurs sporadically in the non-upwelling season.

More ground turns from white reflective snow to black, heat absorbant dirt.The same effect occurs as sea ice is lost.The corals blanch, and, as I stated last year on this site, the shutdown of the north Atlantic current will occur, since the salinity level studies I spoke of last year, off Greenland, continue to show that the upwelling mechanisms driving the North Atlanic current are in severe jeapordy, because the change in salinity levels effects the driver of the current, the upwelling and downwelling of different salinity levels off Greenland.

My understanding of this process is that it mostly occurs near coastal upwellings which bring up nutrients from the deep and that it is responsible for a significant fraction of ocean carbon sequestration.

The name El Nino was given to the weather condition that stopped the upwelling off the coast of Peru and Chile that usually occured around December.

El Niño's warmth occurs because it suppresses the massive upwelling of cold water that usually occurs along South America's equatorial coast.

Global temperatures tend to decrease in the wake of La Niña, which occurs when upwelling cold water off the coast of Peru spreads westward in the equatorial Pacific Ocean.

Upwelling is concentrated in distinct upwelling cells and occurs predominatly in the austral spring and suUpwelling is concentrated in distinct upwelling cells and occurs predominatly in the austral spring and suupwelling cells and occurs predominatly in the austral spring and summer [2].

So, the effect of the increase in downwelling flux, which, as Jim D states, only require an increase in CO2 concentration to occur, just is to * reduce * the net upwelling flux from the ocean surface.

When the Walker circulation weakens or reverses, an El Niño results, causing the ocean surface to be warmer than average, as upwelling of cold water occurs less or not at all.

Also, please understand that upwelling must equal subduction and the two are coupled, that is, one can not occur without the other also occurring, simultaneously.

The well - known decrease in pressure from 1976 to 1977 is analogous to transitions that occurred from 1946 to 1947 and from 1924 to 1925, and these earlier changes were also associated with SST fluctuations in the tropical Indian (Figure 3.29, lower) and Pacific Oceans although not in the upwelling zone of the equatorial eastern Pacific (Minobe, 1997; Deser et al., 2004).

A modelled simulation of the California Current upwelling region (Gruber et al. 2012) forecasts that summer - long undersaturation will occur in the top 60 m of the water column by year 2040 and that by 2050 aragonite saturation states greater than 1.5 will have disappeared, driving more than one half of the water column to undersaturation year - round.

These ocean upwelling conditions occur beneath a complementary downwelling branch of the atmosphere's Hadley circulation — a planetary - scale flow pattern in both hemispheres that takes humid air ascending at low latitudes, heats and desiccates it in deep precipitating tropical clouds, and then sinks it at midlatitudes, where it is considerably warmer and drier than it was.

It could be enhanced upwelling of cold water from deep ocean, but could that occur in a way that's doesn't affect ocean fluxes elsewhere doesn't seem obvious.

Stronger downward transport of water mass must be balanced by upwelling somewhere else, and this occurs in regions of divergence (Ekman suction)- along the equatorward travelling arms of the gyres, and along the equator itself.

Consider that just moving some of the already warmer surface water to depth (while some upwelling of colder water occurs elsewhere as a compensation) results in an increasing heat content at depths while * simultaneously * producing a decrease in heat content at the surface.

Organisms living in areas where upwelling of cool, low pH water occurs (e.g. Eastern Pacific and Baltic Sea) may be acclimatized / adapted to acidification [31 — 34], whereas those living in areas with strong warming (e.g. Eastern Australia) may be acclimatized / adapted to increased temperature [7,35].

When upwelling of colder water from deeper layers occurs, the heat content of the mixed layer is reduced.