Sentences with phrase «in ocean ventilation»

These changes are everywhere consistent with the local changes in ocean ventilation as identified either by changes in density gradients or by changes in apparent CFC ages.

This process together with a warming ‐ induced decreased solubility of O2 and a reduction in ocean ventilation might lead to expanding ocean hypoxia (Yamamoto et al., 2014).

Not exact matches

Climate changes that began ~ 17,700 years ago included a sudden poleward shift in westerly winds encircling Antarctica with corresponding changes in sea ice extent, ocean circulation, and ventilation of the deep ocean.

Scientists think this reversal in strength was driven by changes in sea surface temperature and upper - ocean ventilation.

«Ocean ventilation and deoxygenation in a warming world», Sep 2016 https://royalsociety.org/science-events-and-lectures/2016/09/ocean-ventilation/

I wrote up a simple model in excel which puts CO2 into the atmosphere and takes it into the ocean according to various reservoir sizes and ventilation times.

The positive correlation indicates that the ocean outgasses CO2 compared to its mean state when the SAM is positive, i.e. when the winds are intensified South of 45ºS (20), and suggests that wind - driven upwelling and associated ventilation of the sub-surface waters rich in carbon dominates the variability in CO2 flux (18).

But as discussed here, changes in ocean heat storage and ventilation offer a superior explanation.

And that average depth of the oceans is an order of 3 magnitudes greater, about 3600 meters; changes in ocean heat storage and ventilation have humongous impacts on global climate.

Scientists think this reversal in strength was driven by changes in sea surface temperature and upper - ocean ventilation.

http://www.pnas.org/content/106/43/18045.full About a decade ago, Canfield (1) offered a very different possibility — that ventilation of the deep ocean lagged behind the GOE by more than a billion years, resulting in a vast, deep reservoir of hydrogen sulfide, but long - held presumptions about photosynthetic life in the surface waters remained untouched.

The Antarctic ice sheet reached the coastline for the first time at ca. 33.6 Ma and became a driver of Antarctic circulation, which in turn affected global climate, causing increased latitudinal thermal gradients and a «spinning up» of the oceans that resulted in: (1) increased thermohaline circulation and erosional pulses of Northern Component Water and Antarctic Bottom Water; (2) increased deep - basin ventilation, which caused a decrease in oceanic residence time, a decrease in deep - ocean acidity, and a deepening of the calcite compensation depth (CCD); and (3) increased diatom diversity due to intensified upwelling.

As sub-surface oxygen concentrations in the ocean everywhere reflect a balance between supply through circulation and ventilation and consumption by respiratory processes, the absolute amount of oxygen in a given location is therefore very sensitive to changes in either process, more sensitive perhaps as other physical and chemical parameters.

Much of the warming in the Arctic in the 20s and 40s, as well as in recent decades was likely due to increased ventilation of ocean heat after sea ice was reduced by intruding warm water and the altered atmospheric circulation.

The oxygen content in the surface ocean is projected to decline with warming because of the decrease in solubility of gases with increasing temperature, and changes in ventilation and biological consumption.

Changing westerly winds in the Southern Hemisphere have caused coherent changes in the southern ocean ventilation.

In the ocean the effect of the polynya is the massive production of salty, freezing point shelf water that is the prime ingredient in the formation of the globally important Antarctic Bottom Water and associated ventilation of the world oceaIn the ocean the effect of the polynya is the massive production of salty, freezing point shelf water that is the prime ingredient in the formation of the globally important Antarctic Bottom Water and associated ventilation of the world oceain the formation of the globally important Antarctic Bottom Water and associated ventilation of the world ocean.

By the way, some ritzy non-air conditioned (and very old) homes in Charleston SC are very livable due to superior ventilation systems taking advantage of ocean breeze.

September 2016: Professor Andrew Bakun (University of Miami, USA) speaks at Royal Society event Ocean ventilation and deoxygenation in a warming world.

September 2016: Professor Andrew Watson FRS, (University of Exeter, UK) speaks at Royal Society event Ocean ventilation and deoxygenation in a warming world.

A growing number of paleoceanographic observations suggest that the ocean's deep ventilation is stronger in warm climates than in cold climates.

Among the suite of circulation models examined here, the largest reduction in atmospheric pCO2 of 44 — 88 ppm occurs in a model where reduced overturning rates of both southern and northern sourced deep waters result in a four-fold increase in the Southern Ocean deep water ventilation age.