Sentences with phrase «eddy heat»

Stronger vertical eddy heat transport in CM2.6 relative to CM2.5 accounts for the significantly smaller temperature drift in CM2.6.

A mechanism is presented by which eddy heat and momentum transport couple to retard motion of the jet, slowing its meridional variation and thereby extending the persistence of zonal index and annular mode anomalies.

The eddy transport mechanism results from a reduction in both the diffusive and advective southward eddy heat transports, driven by decreasing isopycnal slopes and decreasing along - isopycnal temperature gradients on the northern edge of the peak warming.

The energy (eddy heat flux anomalies) transferred between the troposphere and stratosphere during the SSW in early February broke the all - time record.

SA13A - 2269: Relationship between lunar tidal enhancements in the equatorial electrojet and tropospheric eddy heat flux during stratospheric sudden warmings

Not exact matches

A key hurdle for fusion researchers is understanding turbulence, the ripples and eddies that can cause the superhot plasma that fuels fusion reactions to leak heat and particles and keep fusion from taking place.

«To put this in some kind of context, if those small scale eddies did not increase with wind stress then the saturation of carbon dioxide in the Southern Ocean sink would occur twice as rapidly and more heat would enter our atmosphere and sooner.»

«If the winds continue to increase as a result of global warming, then we will continue to see increased energy in eddies and jets that will have significant implications for the ability of the Southern Ocean to store carbon dioxide and heat,» said Dr Hogg.

New research suggests that surface - generated eddies help distribute heat, chemistry and life at deep - ocean hydrothermal vents

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.

The researchers also noted a statistically significant relationship between times of low eddy kinetic energy and extremely high temperature anomalies — for example, the sweltering Russian heat wave of 2010.

Whipped up by surface winds and girded by the Coriolis effect (produced by Earth's rotation), eddies may grow to several hundred kilometers in diameter and are known to transport heat, chemicals and biology throughout the oceans» shallower depths.

As the storm moves forward over these eddies, the warm ocean waters below help fuel the storm's intensity through enhanced and sustained heat and moisture fluxes.

The reversed direction of zonal flow grinds eddies carrying heat and particles, and confinement is improved.

Transport by these deep - reaching eddies provides a mechanism for spreading the hydrothermal chemical and heat flux into the deep - ocean interior and for dispersing propagules hundreds of kilometers between isolated and ephemeral communities.

The capabilities of Test Cell 1 include a fuel / air combustion skid for energy input; cooling systems for heat removal; 130 kW eddy - current dynamometer for precision power measurements; and instrumentation, system protection, and power control channels.For measuring the thermal output of fuel - fired thermal energy systems, such as a gas - fired liquid - metal evaporator for Stirling engines, Test Cell 1 offers a gas - gap calorimeter, which simulates the engine by allowing the liquid metal to condense at operating temperatures.

Deep ocean heat and carbon storage are dependent on heat transfers driven by mesoscale eddy mixing.

Eddies carry heat, carbon, and other biogeochemical tracers into the deep ocean, aiding carbon and heat sequestration.

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.

A Catalina eddy is rarely prolonged: as the heat over the deserts causes air to rise, the resulting pressure gradient and increase in the normal onshore winds causes the vortex to dissipate.

``... the eddy can not transport heat across the ocean surface by itself.

Consenquently, the associated SST pattern is slightly cooler in the deep convection upwelling regions of the Equitorial Pacific and the Indian Ocean, strongly cooler in the nearest deep convection source region of the South Atlantic near Africa and the Equator, warm over the bulk of the North Atlantic, strongly warmer where the gulf stream loses the largest portion of its heat near 50N 25W, and strongly cooler near 45N 45W, which turns out to be a back - eddy of the Gulf Stream with increased transport of cold water from the north whenever the Gulf Stream is running quickly.

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 central approximation of the derivation is to relate the eddy latent heating rate (or more precisely ω ↑ «-RRB- to the eddy vertical velocity»

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.

Ocean heat flux is a turbulent and complex system [7] which utilizes atmospheric measurement techniques such as eddy covariance to measure the rate of heat transfer expressed in the unit of joules or watts per second.

A recent study highlights results obtained from an aircraft ocean survey that targeted a large warm core eddy in the eastern Caribbean Sea, where upper ocean measurements are crucial to understanding the complexities of heat and moisture transfer during the passage of tropical cyclones.

AFAIK the most important source of both vertical heat transport, and pseudo-random unforced variation in vertical heat transport, is vertical mixing driven by mesoscale eddies in the West Pacific.

I don't know about heat sloshed under the poles but I need a slosh of scotch heat after this; since you know Bob well you will know he has discussed a reemergence mechanism to explain how the ocean can put heat into the atmosphere in an El Nino year yet keep warming itself; and despite the fact that the oceans are a complex eddying mess the fact remains that AGW is a top down heater; if the oceans were going to be heated by AGW a shallow ocean would be heating; but it ain't:

Workshop participants recommended that steps should be taken to define air - sea fluxes as ECVs or EOVs, particularly for those fluxes that can be measured directly and for which there is consensus about measurement methods (e.g., air - sea heat and momentum exchanges using the eddy covariance method).

Embedded within the mean flow is a variety of eddy structures that not only put kinetic energy into circulation but also carry heat and other important properties, such as nutrients for biological systems.

I do have one question for you: do you deny that a poor absorber of IR can be heated mechanically (conduction, convection, eddy diffusion) to a temperature that is asymmetric with its IR absorption aloft?

TURBULANT FLOW; (wind in surges, eddies, chaotic flow, spkiy erratic velocity) Layer of hot air canopy gets MIXED and heat in the boudary escapes to the sky.

Above and below the thin skin layer, turbulent eddy fluxes enhance heat flux in the ocean and / or atmosphere across the interface.However, the eddy can not transport heat across the ocean surface by itself.The heat balance in the skin layer must be accomplished by molecular processes, hence the thin skin layer.T

By seeing for the first time how these eddies accelerate the jet streams at two different altitudes, scientists found the eddies were weak at the higher altitudes where previous researchers had found that most of the sun's heating occurs.

The kinetic energy generated by horizontal pressure gradients dissipates in smaller - scale eddies and ultimately converts to heat.

This heat provides the energy to create the eddies that drive the jet streams.

The eddy correlation (ECOR) flux measurement system provides half - hour measurements of the surface turbulent fluxes of momentum, sensible heat, latent heat, and carbon dioxide.

Simpson began with a gray - body calculation, Simpson (1928a); very soon after he reported that this paper was worthless, for the spectral variation must be taken into account, Simpson (1928b); 2 - dimensional model (mapping ten degree squares of latitude and longitude): Simpson (1929a); a pioneer in pointing to latitudinal transport of heat by atmospheric eddies was Defant (1921); for other early energy budget climate models taking latitude into account, not covered here, see Kutzbach (1996), pp. 354 - 59.

They then estimated the heat flux into the thermocline using a standard (accepted) model, with a thermocline eddy diffusion coefficient of 1.2E - 5 m ^ 2 / s from Ledwell: We estimate s by using this slope along with k = 1.2x10 - 5 m2 / s (the eddy diffusion coefficient in the thermocline [Ledwell et al., 1998]-RRB- So if they are wrong, either their basic model is wrong (which seems unlikely - it is just a simple energy balance model after all), or their choice of eddy diffusion coefficient is wrong.

back to the horizontal gradient, if the upper tropospheric thermal wind shear increase is greater than the decrease of the lower layer, then maybe the overall baroclinic instability would be stronger — but currently the upper level eddy circulations do not transport much heat poleward, so would the structure of cyclones change so that a deeper layer of air is involved in the thermal advection, compensating for a weaker temperature gradient?

Tropical cyclones seem to me to be a very good potential source of forcing «by daily and six - hourly winds and heat fluxes», according to Enhanced vertical mixing within mesoscale eddies due to high frequency winds in the South China Sea [3]:

On Earth this happens close to 30 degrees latitude, and poleward of this the heat transport is dominated by mid-latitude eddies rather than being under the wings of a giant overturning circulation (you can still find references to a mid-latitude «Ferrell cell» in textbooks, but this is not a good description of what happens).

We characterize impacts on heat in the ocean climate system from transient ocean mesoscale eddies.

To the north of the deep mixed layers, eddy processes drive the warming and account for nearly 80 % of the northward heat transport anomaly.

Through baroclinic instability, the potential energy associated with temperature gradients is converted into the energy in atmospheric eddies that dominate the heat and angular momentum transport poleward of the subsiding region of the Hadley cell.

Pilot balloon measurements during BoDEx point to a marked diurnal cycle in the wind speed such that the LLJ accelerates over a near frictionless inversion by night but is mixed down to the surface by extreme radiative heating through modification of eddy viscosity to produce a surface - wind - speed maximum by ≈ 1100 local time (32).