The effects of mesoscale
eddies on the main subtropical thermocline are explored using a simply configured wind - and buoyancy - driven primitive equation numerical model in conjunction with transformed Eulerian mean diagnostics and simple scaling ideas and closure schemes.
Loosely speaking, this is something like
the eddies on opposite sides of a global jet swirling in opposite directions -LRB-... and then the position of the jet moves).
Mostly this is a question of scale (model grid boxes are too large for the details to be resolved), but sometimes it's a matter of being uncertain how to include it (for instance, the impact of ocean
eddies on tracers).
«Previous studies looked for turbulence or
eddies on the scale of the animals» size,» he says, instead of large downward jets.
They are more like
the eddies on the surface of a river.
Not exact matches
On the contrary, I am most interested in the relative certainty offered by companies that many characterize as «Steady
Eddies,» particularly in the health care, software, and branded retail sectors where the stock prices may not reflect the companies» intrinsic value.
Furthermore, I reflect
on these matters as a Protestant Christian whose theological views have been most deeply shaped by the Reformed theological current within the Protestant river, as that was channeled by nineteenth - century theological liberalism and then intersected first by that peculiar
eddy in liberalism called «neo-orthodoxy» and then by various other theological
eddies still swirling in the last half of the twentieth century.
I know there was a time, when I would be praying, that the Holy Ghost would sweep into the room I was in, spiral and
eddy in the various corners in such a mighty physical manifestation that one could watch it happen because dust bunnies would whirl and elevate in the turbluence, cloth throws
on furniture would flap and furl.
Eddies anonymous blogger hit
on something when he highlighted Ramsey not bringing the ball out effectively.
an interesting blog, particularly
on tommy and
eddy, but i must say they'd really have to prove that while we hope they stay at least 80 % fit thruout d season.
The tiniest contaminant — a speck of dust, a blade of grass — can disrupt a waterslide's flow, touching off larger irregularities that in turn create swirling
eddies, and so
on.
The velocity at which a smoothly flowing stream produces
eddies depends
on the water's viscosity, the diameter of the channel, and other factors, but no one fully understands what triggers all the turbulence.
Their work, which Hassanzadeh will present at the annual meeting of the American Physical Society's Division of Fluid Dynamics in Pittsburgh
on November 25, also provides insight into persistent ocean
eddies and vortices that contribute to star and planet formation.
Every storm and every gentle
eddy of air traces its energy back to the solar rays — 173 petawatts of energy beating down
on our planet, relentlessly heating the air and stirring the atmosphere.
They are keeping a close eye
on a particular
eddy that could determine when the oil might reach the Atlantic Ocean.
Lozier (p. 1507) discusses how recent studies have challenged our view of large - scale ocean circulation as a simple conveyor belt, by revealing a more complex and nuanced system that reflects the effects of ocean
eddies and surface atmospheric winds
on the structure and variability of the ocean's overturning.
Not only did we discover a cluster of volcanoes
on Sydney's doorstep, we were amazed to find that an
eddy off Sydney was a hotspot for lobster larvae at a time of the year when we were not expecting them,» Professor Suthers said.
The study was focused
on a form of turbulence known as mesoscale
eddies, ocean swirls
on the scale of tens to hundreds of kilometers across that last anywhere from a month to a year.
«Mesoscale
eddies are
on the scale of hundreds of kilometers across, yet the ocean is only four kilometers deep, which makes them essentially two - dimensional.
More data is needed to confirm the connection between
eddies and the transport of vent products, Thomson says, but he also acknowledges the extraordinary resources required to gather longitudinal data
on deep - sea phenomena.
A new study published April 29 in Science suggests that
eddies may have a deeper reach than previously thought, helping to shape some of the most remote ecosystems
on Earth — deep - sea hydrothermal vents.
A new study has found that turbulent mixing in the deep waters of the Southern Ocean, which has a profound effect
on global ocean circulation and climate, varies with the strength of surface
eddies — the ocean equivalent of storms in the atmosphere — and possibly also wind speeds.
The science team obtained vital information about the physical characteristics within one large warm - water
eddy, which likely originated from the North Brazil Current, and analyzed its potential influence
on sub-surface ocean conditions during the passage of tropical cyclones.
With such ideal conditions, the group dissolved seven metric tons of iron sulfate in acidic seawater and spewed the solution into the ship's propeller wash starting
on February 13, 2004, covering a circular patch in the
eddy of some 167 square kilometers.
This information will provide unique insight into the
eddy's duration, stability, and influence
on the ocean systems; and will improve current ocean models, which are critical for developing expectations
on the health of future oceans.
For this project, they and their teams are collaborating with engineers from MBARI to test new ways of adaptively sampling oceanographic features such as open - ocean
eddies, swirling masses of water that move slowly across the Pacific Ocean, which can have large effects
on ocean microbes.
Then the team's computer simulations showed that
eddies could trigger changes in sea floor currents matching the patterns measured by the instruments, with the best correlation occurring when the effects
on deep - sea currents happened 8 days after the
eddy passed overhead.
To definitively say that the birds are drafting off each other, however, the exact location of the
eddies and the areas of downdraft would need to be measured
on ibises, which would require flying them in a wind tunnel — a far more intrusive process than simply carrying a data logger.
Roberts, M., et al., 2004: Impact of an
eddy - permitting ocean resolution
on control and climate change simulations with a global coupled GCM.
Ocean mesoscale
eddies are the «weather» of the ocean, with typical horizontal scales of less than 100 km and timescales
on the order of a month.
Deep ocean heat and carbon storage are dependent
on heat transfers driven by mesoscale
eddy mixing.
During a postdoctoral fellowship at MIT, Cambridge USA, his research interest focused
on the interaction between ocean
eddies and deep convection regions and their respective heat and density transports.
The resistance offered is also
on a higher number, with 25 levels of
eddy magnetic current available; therefore, you can always push yourself to a higher level.
It was a flop at the time, too dark and weird and unhinged for mainstream cinema, and like many Gilliam films it's entrancing
on a moment - to - moment level, losing itself in the swirls and
eddies of the narrative.
On the other hand, childless renters have no good reason to put off saving and generally should buckle down with the steady -
eddy approach.
graphite, pigmented paste wax, milk paint, colored pencil
on paper 29 x 30 inches Installation view, The Stillness of
Eddies, 56 Henry, New York, NY
Jon's resume includes doing storyboards at Danny Antonucci's A.K.A. Cartoons for Cartoon Networks Ed, EDD and
EDDY, character design / development for Marv Newland's International Rocketship, animating
on an R.E.M. video, lead animation
on Disney's «The Buzz
on MAggie» as well as Warner Brothers hit show Mucha Lucha.
Harold Eugene Edgerton (American, 1903 - 1990) Swirls and
Eddies: Tennis, signed «HAROLD EDGERTON» in pencil
on the reverse.
Her thesis exhibition, Momentary
Eddies, will be
on display in the Foster Gallery
on LSU's campus April 11 — 15, closing reception 6 — 8 p.m.
on Friday, April 14.
Anyway, could the presence of these
eddy swirls (and the sea - surface temperature garbling that goes along with them) have an impact
on the sea - surface temperature record by ships traveling unbeknownst through them over the last 50 - 100 years?
That's certainly part of the story, but it's still an active research field and while models agree pretty well
on net flux out of the tropics the lack of a good theory of baroclinic
eddy transport inhibits asking «why» questions.
But Batten and other fisheries scientists warns there's too much natural variability in both North Pacific conditions and salmon reproduction to tease out an impact from 100 tons of dust spread
on a single
eddy in the North Pacific in single year.
However, Helbig et al. [2017], using a set of nested paired
eddy covariance flux towers in a boreal forest - wetland landscape, point to the increasing importance of warming temperatures
on ecosystem respiration potentially overwhelming enhanced productivity occurring from land cover change under projected anthropogenic trends.
Griffies, S. M., M. Winton, W. G. Anderson, R. Benson, T. L. Delworth, C. O. Dufour, J. P. Dunne, P. B. Goddard, A. K. Morrison, A. Rosati, A. T. Wittenberg, J. Yin, R. Zhang, 2014: Impacts
on ocean heat from transient mesoscale
eddies in a hierarchy of climate models.
The US CLIVAR / OCB Southern Ocean Working Group was formed to identify critical observational targets and develop data / model metrics based
on the currently available observational data, both physical and tracer, and the assimilative modeling (re) analyses, and evaluate and develop our understanding of the importance of mesoscale
eddies in the heat and carbon uptake and of the response of the Southern Ocean to a changing climate, using high - resolution numerical studies and theory.
However, model physics process representations that are supposed to account for the
eddy moisture transport effects
on convection significantly underestimate them compared to simulations that explicitly resolved
eddy moisture transport without using convective representations.
However, the decreasing strength of stationary -
eddy circulations means that these changes are smaller
on average than would be expected from the «wet gets wetter, dry gets drier» mechanism.
Our paper goes
on to show that this is primarily a result of the reduced strength of stationary -
eddy overturning circulations, such as the Walker circulation.
Pierrehumbert, R. T. 1994:
On tracer microstructure in the large -
eddy dominated regime.
The regional arrays provide a sampling of ocean conditions around the world that is designed to produce an integrated data set that can be used to address questions related to physical - biogeochemical coupling in
eddies, phytoplankton phenology (cyclic and seasonal phenomena), nutrient supply, and climate effects
on ocean carbon cycling in selected regions.