«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 tropospher
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 tropospher
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 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?