Sentences with phrase «upwelling as»

«All these processes give a taste of the complex interaction between sea ice, biological productivity, and deep water upwelling as mechanisms controlling CO2 outgassing in the Southern Ocean, particularly at the Antarctic Polar Front, where they are strongly coupled.»
ENSO begins with cold and nutrient rich upwelling as a La Niña starts.
This of course produces large amounts of cold upwelling as the oceans level out again.
«If climate change leads to increased winds and upwelling as some predict, then that means more unused phytoplankton production, more sedimentation and greater anoxia»: perfect conditions for the bearded goby.

Not exact matches

As the climate changes, Southern Ocean upwelling may increase, which could accelerate ice shelf melting, release more carbon into the atmosphere and limit the ocean's ability to absorb heat and carbon dioxide from the atmosphere.
Even as phytoplankton blooms sequester new carbon, the upwelling of deep, subsurface water currents in the region bring old, once - sequestered carbon back to the surface waters, allowing for exchange with the atmosphere.
Antarctica was also more sensitive to global carbon dioxide levels, Cuffey said, which increased as the global temperature increased because of changing ocean currents that caused upwelling of carbon - dioxide - rich waters from the depths of the ocean.
Coastal upwelling in the Southern Hemisphere results in cool waters as far north as the equator in the Pacific, driving the whales all the way to Panama and Costa Rica for the southern winter.
What happens when the world moves into a warm, interglacial period isn't certain, but in 2009, a paper published in Science by researchers found that upwelling in the Southern Ocean increased as the last ice age waned, correlated to a rapid rise in atmospheric carbon dioxide.
If that upwelled material is denser than what was blasted away by the impact, the crater ends up with the same mass as it had before the impact happened.
Earth scientists have long suspected that upwellings in these mantle convection currents would manifest themselves as the plumes responsible for Earth's volcanic hot spots.
The waters probed during this study, known as the California Current, are a hot spot of ocean acidification because of coastal upwelling, which brings naturally acidic waters to the surface, where they are made even more acidic by greenhouse gas pollution.
In 2012, researchers documented damage to oysters in hatchery tanks in Oregon fed with seawater that had become more acidic as a result of offshore upwelling patterns.
Climate modeling shows that the trends of warming ocean temperatures, stronger winds and increasingly strong upwelling events are expected to continue in the coming years as carbon dioxide concentrations in the atmosphere increase.
As Dr. Mackey cited in the published article Sea Change: UCI oceanographer studies effects of global climate fluctuations on aquatic ecosystems: «They would tell us about upwelling and how the ocean wasn't just this one big, homogenous bathtub, that there were different water masses, and they had different chemical properties that influenced what grew there,» she recalls.
«Areas of greatest vulnerability will likely be where deep waters, naturally low in pH, meet acidified surface waters,» such as areas of coastal upwelling along the West Coast and in estuary environments such Hood Canal, the new study predicts.
That kept deep, nutrient - rich water from reaching the surface — an upwelling that serves as «a kind of turbo boost to the ecosystem,» Parrish says.
Research shows that humpback diets reflect their surroundings, with the truck - sized whales filter - feeding on vast amounts of krill when cold upwelling waters prevail, but switching to schooling fish such as anchovies when warmer waters take over and the fish grow abundant.
As new ocean crust is created through erupting underwater volcanoes, iron - rich minerals are fired out in the upwelling magma.
Some ENSO experts, such as Mark Cane, points out that the upwelling impact on SST in the East implies that in the transient warming, the warming might happen faster in the West than the East thus strengthening the Walker circulation — some of the supposed volcanic - El Niño connections would support that.
So yes, Rapa Nui sits way out in the ass end of nowhere, atop a seamount that has formed via the Easter hotspot, an upwelling of magma below the oceanic crust that has generated a range of undersea mountains (the Nazca Ridge) as the Nazca Plate drifted above it....
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).
Thus, off South America, cold water is not brought to the surface as efficiently by upwelling.
Once thought to be a periodic phytoplankton bloom, the highly visible occurrence (shown here as wispy areas near the coast) is now known to be the result of periodic hydrogen sulfide gas eruptions from the diatomaceous sediments underlying the highly productive waters of the northern Benguela upwelling zone.
Known as the «sulfur pearl of Namibia,» this anaerobic species digests organic matter under low - oxygen (or no - oxygen) conditions that are caused by high rates of phytoplankton growth in the Benguela upwelling zone, and the subsequent decay of large masses of dead phytoplankton that have fallen to the seafloor.
The circulating boiling pattern — convection — appears as large regions of hot upwelling gas on the star's surface.
«As the denser material on the bottom heats up, it rises in these upwellings that have a mushroom head followed by a long tail.»
In contrast, bacterial diversity increased in wild paralarvae as they developed in the oceanic realm of both upwelling systems, likely due to the exposure of new bacterial communities via ingestion of a wide diversity of prey.
As she tries to overcome her aging body and spontaneous emotional upwellings, Aaliya is faced with an unthinkable disaster that threatens to shatter the little life she has left.
These organisms thrive here as they are fed by the upwelling of cold, nutrient - rich water, and are somewhat protected by their distance from the mainland.
Oceanic Sunfish (Mola mola) are regularly spotted on the local reefs as they follow upwelling from the deep ocean into the shallows to cleaning stations where schools of butterfly fish surround them.
Underwater formations such as estuaries, the roots of mangrove forests, upwelling currents, fore reefs, and deep walls are all excellent places to have a safe and exciting encounter with sharks.
There's typically an initial ocean uptake as tropical East Pacific upwelling (CO2 degassing) is reduced, followed by a stronger release of carbon from land.
And shouldn't the relative T - difference even increase in the future as shallower coastal waters heat up more quickly than deeper ocean water (except probably in upwelling areas)?
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.
The whole issue is that any level above what is often called the «effective radiating level» (say, at ~ 255 K on Earth) should start to cool as atmospheric CO2 increases, since the layers above this height are being shielded more strongly from upwelling radiation... except not quite, because convection distributes heating higher than this level, the stratosphere marks the point where convection gives out and there is high static stability.
It is precisely this upwelling which has resulted in the recent diminished capacity of the Antarctic Ocean to absorb as much of our carbon emissions.
Some ENSO experts, such as Mark Cane, points out that the upwelling impact on SST in the East implies that in the transient warming, the warming might happen faster in the West than the East thus strengthening the Walker circulation — some of the supposed volcanic - El Niño connections would support that.
One idea is that this is related to PDO and how slight changes in the earth's rotation rate can set in motion large - scale upwellings in the ocean that reverse as the rotation accelerates and decelerates.
I have read references to the Peru - Chile Trench that described it as the site of significant upwelling.
Now, you have less upwelling cold water to heat up, and you get more warming — as in El Nino (a la 1998).
This freshwater creates a lens on the Gulf surface as well as the cooling effects of coastal upwelling due to wind stress.
There is less absorption by CO2 of upwelling infra - red light above the troposphere, but increased emission as a function of increased concentrations.
Science 275: 957 - 960) have suggested that the upwelling of cold water in the Eastern Pacific provides a kind of thermostat which keeps the Eastern waters from warming as much as the Western warm pool waters.
As mentioned here, as the troposphere becomes more optically thick, the height at which IR is released to space is higher and cooler which means there is less upwelling IR to the regions above the tropospherAs mentioned here, as the troposphere becomes more optically thick, the height at which IR is released to space is higher and cooler which means there is less upwelling IR to the regions above the tropospheras the troposphere becomes more optically thick, the height at which IR is released to space is higher and cooler which means there is less upwelling IR to the regions above the troposphere.
The device (as I infer from the abstract) converts upwelling IR into a band where the atmosphere is quite transparent to IR.
If we take that even farther we now have increased the longwave upwelling imbalance even further as the surface energy with the first 10 - 25 meters will act as a feedback making the downwelling Longwave a product of not only the TSI; but, will include a portion of the reflected upwelling.
The ocean mixes both laterally and vertically — as well there is upwelling of water that is calcium, carbon and nutrient rich.
They have deliberately taken out the real direct heat from the Sun we can all feel as heat from the Sun, so they can pretend that any real world measurements of downwelling heat come from their fictional «Greenhouse Effect's backradiation / blanketing from the upwelling».
Except perhaps that CaCO3 is a remarkably efficient solid for the purpose of cutting off sources of Ca in upwellings in oceans, acting as a negative feedback?
a b c d e f g h i j k l m n o p q r s t u v w x y z