If
the upwelling on the Pacific coast in 2012 brought up water that is 30 - 50 years old, then it is very doubtful that the low pH is due to ACO2.
A cool PDO and a La Niña are the result of cold and carbon dioxide and nutrient rich water from the oceanic abyss
upwelling on the eastern Pacific margin.
The cold sub-polar water displaces the warm surface layer nearer the equator and facilitates cold water
upwelling on the eastern margin of the Pacific Ocean.
A negative SAM spins up the South Pacific gyre transporting cold Southern Ocean water north and facilitating
upwelling on the Peruvian coast.
Deep ocean currents occasionally push through the warm surface layer in the south eastern Pacific in one of the major areas for
upwelling on the planet.
There was little coastal
upwelling on the Pacific coast (of North America at least) and I believe several other oceanographic features mimicked El Nino.
At pH 7.1, which is expected to roughly approximate the pH of water
upwelling on the West Coast with ocean acidification, zoeae survival remained low at 21 percent.
Not exact matches
A shift in the wind direction during the 1940s caused renewed
upwelling of warm deep water
on to the shelf.
But because Jupiter lacks a solid surface, the
upwelling probably works in a completely different way than
on Earth.
The
upwelling resembles a feature
on Earth called a Hadley cell, where warm air at our equator rises and creates trade winds, hurricanes and other forms of weather.
Because the
upwelled waters ran along the surface for a longer period of time, nutrients spent more time near the surface of the ocean where phytoplankton could feed
on them for longer.
The anemones probably feed
on detritus and the
upwelling of nutrient - rich water.
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.
That includes modeling the wind - induced
upwelling at the edge of the Antarctic continental shelf, the flow of the water through submarine canyons
on the continental shelf, and the water reaching Totten that causes melt and acceleration.
To untangle the impacts that these three climate stressors will have
on seafloor diversity in the future, the researchers examined existing published data and collected new data
on organisms living in deep - sea sediments in
upwelling regions along continental margins, where the ocean and continental crusts meet along the seafloor.
More importantly, Clinton Conrad, Associate Professor of Geology at the University of Hawaii — Manoa's School of Ocean and Earth Science and Technology (SOEST) and colleagues revealed that these
upwelling locations have remained remarkably stable over geologic time, despite dramatic reconfigurations of tectonic plate motions and continental locations
on the Earth's surface.
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.
And the stars»
upwelling surfaces,
on the other hand, make the photons shift slightly blue.
«This new constraint
on plume structure has important implications for how deep mantle material is entrained in plumes, and it gives us the clearest picture yet for the chemical structure of an
upwelling mantle plume.»
The urchins live
on the Pacific coast of North America, where they often experience
upwellings of carbon - dioxide - rich water from the deep ocean.
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.
My research indicates that the Siberian peat moss, Arctic tundra, and methal hydrates (frozen methane at the bottom of the ocean) all have an excellent chance of melting and releasing their stored co2.Recent methane concentration figures also hit the news last week, and methane has increased after a long time being steady.The forests of north america are drying out and are very susceptible to massive insect infestations and wildfires, and the massive die offs - 25 % of total forests, have begun.And, the most recent stories
on the Amazon forecast that with the change in rainfall patterns one third of the Amazon will dry and turn to grassland, thereby creating a domino cascade effect for the rest of the Amazon.With co2 levels risng faster now that the oceans have reached carrying capacity, the oceans having become also more acidic, and the looming threat of a North Atlanic current shutdown (note the recent terrible news
on salinity
upwelling levels off Greenland,) and the change in cold water
upwellings, leading to far less biomass for the fish to feed upon, all lead to the conclusion we may not have to worry about NASA completing its inventory of near earth objects greater than 140 meters across by 2026 (Recent Benjamin Dean astronomy lecture here in San Francisco).
These oscillations can produce effects that mimic CO2 - induced changes (e.g., altered
upwelling regimes of deep nutrient - rich waters with effects
on POC flux; Merino and Monreal - Gomez, 2009).
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).
Those winds allow an
upwelling of deep, cold water off the northwest coast of South America to move west, piling up
on the other side of the ocean.
The circulating boiling pattern — convection — appears as large regions of hot
upwelling gas
on the star's surface.
So the
upwelling likely works in a completely different way than
on Earth.
Application of this model to time series data reiterates the direct association between low aragonite saturation state and
upwelled waters and highlights the extent to which benthic communities
on the Northern California shelf are already exposed to aragonite undersaturated waters.
«As the denser material
on the bottom heats up, it rises in these
upwellings that have a mushroom head followed by a long tail.»
This
upwelling resembles a feature
on Earth called a Hadley cell.
Dygert said that while it's well known that magma
upwelling from the mantle at mid-ocean spreading zones creates new crust, there are many questions
on how the process works.
In the Pacific Northwest, vulnerability is
on the lower side despite high acidification rates coupled with heavy runoff and
upwelling.
Based
on the temperature minimum recorded from the early Late Oxfordian of Kachchh, it was suggested that the widening of the Trans - Gondwanan Seaway may have led to increased
upwelling in the Malagasy Gulf and to a cooling recorded in the oxygen isotopes of belemnites and other marine invertebrates from Kachchh [38].
Between Lizard Island and Cooktown the reef sits right
on the edge of the Continental Shelf, bringing in an
upwelling of nutrient rich water attracting large fish populations and diverse corals.
Feeding The Cassin's auklet feeds offshore, often relying
on upwellings of cooler nutrient rich waters and associating with bathymetric landmarks such the continental shelf and underwater canyons.
Blue Whales (Balaenoptera musculus), Fin Whales (Balaenoptera physalus), and Sei Whales (Balaenoptera borealis) can be observed in the Channel Islands National Marine Sanctuary feeding
on krill from the nutrient rich,
upwelled water (late - May through September).
The Ribbon Reefs sit right
on the edge of the Continental Shelf, bringing in an
upwelling of nutrient rich water that attracts large fish populations and diverse coral species.
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.
There is often current
on dives, but it is the
upwellings caused by these currents that bring forth the abundant marine life, from the ever present anthias to the reef sharks and other large predators.
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.
Farman et al had suggested strongly that increased chlorine loads in the stratosphere were causing the depletion, but two alternate theories were still credible — a dynamical theory based
on anomalous
upwelling of (relatively depleted) tropospheric air and a solar - cycle related cause.
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.
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.
Re 28, Ben: In addition to the concerns you list, intense hurricanes normally cause some
upwelling of deeper waters, and if they are slow - moving, thus somewhat dependent
on the temperature of deeper waters.
Upwelling in the northwest Indian Ocean provides sufficient surface productivity to provide an excess of organic matter to sediments
on the continental slope of the Arabian Peninsula where the oxygen minimum zone intersects the slope.
This freshwater creates a lens
on the Gulf surface as well as the cooling effects of coastal
upwelling due to wind stress.
Suggested mechanisms range from
upwelling of warm deep waters onto the continental shelf in response to variations in the westerly winds, to an influence of El Niño — Southern Oscillation
on sea surface temperatures.
The Humboldt Current Large Marine Ecosystem (off Chile and Peru), the Benguelan Current LME (Namibia and South Africa), the Canary Current LME (Morocco), are the other main
upwelling ecosystems, all driven by similar oceanographic and atmospheric processes, all
on the eastern sides of ocean basins (western sides of continents).
La Nina / PDO is a perfect example where changes in ocean currents / ocean
upwelling affect heat transfer between the phases of the system (and cool the air)--
on a human time scale.
Tatoosh Island pH change is 10 times worse than modelled —
upwelling is a major influence
on pH in that part of the world.