Sentences with phrase «eddy energy»

The unresolved mesoscale eddy energy is parameterized as a function of the large - scale available potential energy.

If this tropical warming is combined with a cooler North Atlantic Ocean from AMOC slowdown and an increase in midlatitude eddy energy (Fig. 21), we can anticipate more severe baroclinic storms.

However, the surface cooling from ice melt increases surface and lower tropospheric temperature gradients, and in stark contrast to the case without ice melt, there is a large increase in midlatitude eddy energy throughout the midlatitude troposphere.

Without ice melt, surface warming is largest in the Arctic, resulting in a decrease of lower tropospheric eddy energy.

However, the surface cooling from ice melt increases surface and lower tropospheric temperature gradients, and in stark contrast to the case without ice melt, there is a large increase of mid-latitude eddy energy throughout the midlatitude troposphere.

Not exact matches

«The increase in kinetic energy of these eddies actually only became apparent a few years after a strong SAM event.»

«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.

If it's positive, it means that CO2 is being released into the atmosphere, and the way we quantify that is with the eddy covariance technique that measures the exchange of mass and energy between the atmosphere and the land - surface.»

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.

Coumou has taken the story forward, analyzing existing climate models to track the future of eddy kinetic energy over the 21st century.

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.

And shear is important in generating «eddies» — cyclonic or anticyclonic swirls of energy — within the overall wind flow.

Able to efficiently harness the energy of the whirlpools, the shapely whisker was set in motion even by slow - moving eddies generated by a faraway «fish.»

«Like storms in the atmosphere, these eddies help to distribute energy, warmth, salinity and other things around the ocean.

The traditional theory for how small - scale turbulence dissipates energy states that as an eddy dies out, it transmits its energy to smaller and smaller scales.

The scientists studied a specific type of turbulences known as synoptic eddies, and calculated the total energy of their wind speeds.

This is shown by the change of zonal mean temperature and eddy kinetic energy in our simulations with and without ice melt.

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.

A viewer of Spectrums should not be alarmed, then, to notice a human arm aboriginal to an eddy of denim scraps, plaid scarves, silk flowers, and peacock feathers — holding its own braided string like a balloon — like a dragon reaching for its tail — like the unselfconscious energy of turning inward — like an autonomous cosmos.

But there's a new generation of inductive bike lighting coming of age right now, which uses the naturally - generated eddy currents from the spinning wheel of the bike to produce enough electricity to drive bright (and energy - efficient) LED bulbs, and which promises to set cyclists free from the dreaded dead battery blues.

Eddies can grow by extracting kinetic energy from a steady - state flow pattern, if there is an elongated horizontal maximum or minimum in potential vorticity; however, the shear can tilt those eddies in such a way that the eddies give back their kinetic eEddies can grow by extracting kinetic energy from a steady - state flow pattern, if there is an elongated horizontal maximum or minimum in potential vorticity; however, the shear can tilt those eddies in such a way that the eddies give back their kinetic eeddies in such a way that the eddies give back their kinetic eeddies give back their kinetic energy.

O'Gorman, P. A., and T. Schneider, 2008: Energy of midlatitude transient eddies in idealized simulations of changed climates.

«Both the eddy kinetic energy and the dry mean available potential energy have a maximum for a climate close to that of present day Earth and are smaller in much warmer and much colder climates»

Forms of energy and energy transport (eddies and mean circulations) and their relative importance.

Ocean surface cooling, in the North Atlantic as well as the Southern Ocean, increases tropospheric horizontal temperature gradients, eddy kinetic energy and baroclinicity, which drive more powerful storms.

These horizontal energy transport eddies span a wide range of spatial scales, the vast majority of which can not be resolved within the capabilities of existing computer resources.

In climate research, the intensity of a storm track is often measured by the band pass filtered eddy kinetic energy, geopotential variance or related variables.

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.

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

Combining these equations for the mass and energy balances of the Hadley cell, we can write the ratio of the ITCZ area to the area of the descent region in terms of the gross moist stabilities in each region, the respective net energy inputs, and the mean advection and transient - eddy terms in the energy budget:

Consequently, the vertical velocity in the descent region is a function not only of the net energy input to the atmosphere and the gross moist stability, but also of the energy transport by transient eddies and mean advection.

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.

For example, equatorward - moving weather systems — known as «transient eddies» — fulfill much of the poleward energy export required to balance the net energy input, with the energy transport associated with vertical motion times gross moist stability less important than in the ITCZ.

For example, increases in net energy input to the tropical atmosphere tend to narrow the ITCZ whereas increases in energy transport by transient eddies tend to widen the ITCZ.

What I will be able to do (at least with high Reynolds, e.g a fully developped turbulence) is to develop a statistical description (so many eddies of that size and that much Joules dissipated per kg) of where the energy is and where it goes.

Well he realised that the energy dissipation was happening at very small scales where all the small eddies looked very similar.

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.

Nature in the city is an evening breeze, a corkscrew eddy swirling down the face of a building, the sun and the sky... It is the natural processes that govern the transfer of energy, the movement of air, the erosion of the earth, and the hydrologic cycle.

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If the wind field contains energy at the inertial frequency or higher (daily and six - hourly cases), then Vortex Rossby waves and near inertial waves are excited as ageostrophic expression of the vigorous eddy field.

Google books has a preview of most of the pages of The Supply of Energy from and to Atmospheric Eddies.

Wind energy: Projecting electricity output at a wind farm is extraordinarily challenging as it involves predicting variable gusts and complex wind eddies at the height of turbines, which are hundreds of feet above the sensors used for weather forecasting.

Both the termination of the storm track and the localization of the intraseasonal variability in the GCM depend on a difluent region of weak upper - level flow, where eddies break and dissipate rather than propagate energy forward through downstream development.

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.