Sentences with phrase «equatorial upwelling»

During El Niño, this equatorial upwelling is suppressed in the eastern and the central Pacific Ocean, reducing the supply of CO2 to the surface.

Typically, the tropical Pacific Ocean is a source of CO2 to the atmosphere due to equatorial upwelling that brings CO2 - rich water from the interior ocean to the surface.

Is it due to equatorial upwelling?

Equatorial upwelling is by definition meridional circulation.

In the Equatorial Pacific, we normally have equatorial upwelling in the east and downwelling in the west, aka the Western Pacific Warm Pool.

Similarly, equatorial upwelling associated with the shallow meridional overturning circulation increased in the central Pacific, shoaling the thermocline and contributing to cooling trends in the mixed layer.

Coastal and equatorial upwelling bring an enormous amount of DIC to the surface, with subsequent transport to the gyres of the open ocean, causing declines in open ocean surface pH at rates that are much faster than possibly attributed to atmospheric diffusion.

At the same time, the accelerated trade winds have increased equatorial upwelling in the central and eastern Pacific, lowering sea surface temperature there, which drives further cooling in other regions.

At the same time, the accelerated trade winds have increased equatorial upwelling in the central and eastern Pacific....

Reductions in seafloor POC flux will be most drastic, on a percentage basis, in the oceanic gyres and equatorial upwelling zones, with the northern and southern Pacific Ocean and southern Indian Ocean gyres experiencing as much as a 32 — 40 % decline in POC flux (Tables 2, 3; Figures 2, 3).

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.

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.

When you get upwelling in the eastern Pacific that propagates across the equatorial Pacific — there is less IR loss from the surface and the troposphere cools.

This region of upwelling propagates across the central Pacific driven by winds and Coriolis forces enhancing Walker Circulation — which with Hadley Circulation establishes the dominant trade winds in the north and south sub equatorial regions.

This sets up feedbacks in wind and currents that propagate cold water upwelling across the equatorial Pacific.

What Willis has described in terms of the interaction of the trades blowing equatorial Pacific water westward, cloud cover and upwelling in the east Pacific is a concise description of the Bjerknes feedback, described here.

The Pacific regimes are caused by changes in upwelling in the north - east and equatorial Pacific over 20 to 30 year regimes.

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).

«For those not in the know» La Nina is the direct consequence of the return of trade winds to their normal strength after a Nino so that renewed surface wind stress plus the Coriolis effect generate upwelling of cool water along the equatorial region: go read it up in any decent, old - fashioned text - book on physical oceanography published after about 1970....

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).

Given two systems that can produce upwelling off the western equatorial coast of South America, it wouldn't be surprising to find that they interact with each other.

The tropical oceans take up vast amounts of energy through air - sea heat fluxes, especially in the equatorial regions dominated by wind - driven upwelling of cold water.

Oceans continuous release CO2 in the equatorial band (including deep ocean upwelling in the Pacific) and dissolve CO2 near the poles (including deep ocean downwelling by the THC in the North Atlantic).

Reduced equatorial cloud cover during La Nina (due to the cooler sea surface temperature), combined with the strong upwelling (Ekman suction) in the eastern equatorial Pacific, does indeed lead to greater warming of the ocean - because it's bringing cool subsurface water to the surface, where it can be heated by the sun.

But we argue here that only small (2 nM) increases in the iron concentration in source waters of the upwelling Equatorial Undercurrent are needed to fuel intense diatom production across the entire eastern equatorial PaciEquatorial Undercurrent are needed to fuel intense diatom production across the entire eastern equatorial Paciequatorial Pacific Ocean.