Sentences with phrase «kelvin wave»

The mode that drives the transition to superrotation in an intermediate thermal Rossby number atmosphere is shown to behave like a Kelvin wave in the tropics.

The kelvin wave was the only thing that even suggested a strong el nino to begin with and now that it's surfacing we can see it's not creating 1997 type temperature increases in the ocean.

Let's keep in mind as well, in 1997 there was yet another kelvin wave that increased temperatures even further in the summer.

This series of globes shows the eastward progression of a Kelvin wave — a giant wave of warm water — in February 2010.

Sreve Sadlov... pretty much... it's called a kelvin wave, we're in the tail end of one right now... that along with the end of the warm sst's in the east (south of nino 1 + 2) are going to cause some nice cooling in the nino regions in the next few weeks.

I fed the Pacific Ocean data into the second worksheet in my climate model and it predicts that «monster kelvin wave» will turn out to be a bit below average and by July 2014 it will have dissipated.

The temperature of the water below the surface remained above - average, as the large area of warmer - than - average subsurface waters continued to move slowly to the east (a downwelling Kelvin wave).

There was a strong westerly wind event in the east - central tropical Pacific in January, and we have been on the lookout to see if its downwelling Kelvin wave would raise the Nino3.4, then Nino3, and then Nino1 +2 readings.

Whether it is a westerly wind burst associated with the MJO or a downwelling kelvin wave, correlation does not equal causation.

The best example I know tis the ~ 3.75 year Rossby / Kelvin wave in the North Pacific, for which that ocean basin is resonant at that period.

A year after that first sign of an impending El Niño surged across the ocean, another Kelvin wave is making its way across the basin.

Forecasters believe the current Kelvin wave and the already warmer ocean temperatures, signal that the El Niño is going to persist, which was another factor in officially declaring an event.

They based it on a subsurface plume of warm water, called a Kelvin wave, surging from west to east across the tropical Pacific.

This image shows the path of the Kelvin waves that interact with the Antarctic Circumpolar Current and push warmer waters under the ice shelves of the West Antarctic Peninsula.

They should lead to a dynamic modelling platform being set up for the ecosystem, integrating key parameters which are oxygen, wind patterns and Kelvin waves, allowing potential changes in fish stocks to be predicted, particularly anchovy stocks.

For instance, long - period ocean waves called Kelvin waves, which operate on the same time scale as El Niños, could also be a factor.

Multiple Kelvin waves have pulsed across the ocean basin in recent months and ocean temperatures have repeatedly been warm enough in that region to qualify as an El Niño.

Kelvin waves can travel eastward along the equator and poleward on the coasts along the eastern boundary of the ocean basins, but not in the ocean interior.

Ocean serves as the memory whereby slow oceanic Rossby waves and Kelvin waves propagate through the basin and affect the depth of the oceanic surface layer of warm water.

The weakening of the Walker circulation arises in these models from processes that are fundamentally different from those of El Nià ± o — and is present in both mixed - layer and full - ocean coupled models, so is not dependent on the models» ability to represent Kelvin waves (by the way, most of the IPCC - AR4 models have sufficient oceanic resolution to represent Kelvin waves and the physics behind them is quite simple — so of all the model deficiencies to focus on this one seems a little odd).

Željka Fuchs, Sharon L. Sessions, David J. Raymond, Mechanisms controlling the onset of simulated convectively coupled Kelvin waves, Tellus A 2014, 66, 22107, link

A good example is how convectively coupled Kelvin waves move at a fraction of the speed compared to their dry counter parts (Kiladis 2009).

No El Nino yet, despite two warm Kelvin waves and somewhat favorable atmospheric conditions throughout the months of August and September.

Err, that should have been: «The El Nino kelvin waves came and went.

The El Nino kelvin waves came and went.

This means that Kelvin waves can retain their shape and direction over long periods of time.

Equatorial Kelvin waves propagate to the east in the Northern and Southern hemispheres, using the equator as a guide.

Coastal Kelvin waves follow shorelines and will always propagate in a counterclockwise direction in the Northern hemisphere (with the shoreline to the right of the direction of travel) and clockwise in the Southern hemisphere.

Kelvin waves are known to have very high speeds, typically around 2 — 3 meters per second.

Then some mysterious combination of flagging trades, QBO, and the up and downwelling effects of Rossby and Kelvin waves sloshing back and forth across the Pacific; suddenly releases this mechanically submerged warm water eastward across the Pacific ocean surface.

Relatively clear skies in the central and eastern tropical Pacific [during a La Niña] allow solar radiation to enter the ocean, apparently offsetting the below normal SSTs, but the heat is carried away by Ekman drift, ocean currents, and adjustments through ocean Rossby and Kelvin waves, and the heat is stored in the western Pacific tropics.

ENSO is a system involving Kelvin waves and Hadley and Walker cell circulation in the equatorial Pacific.

I've used JPL sea level animations to demonstrate equatorial Pacific Kelvin waves during El Niño events and the much overlooked Rossby waves that return vast amounts of warm water to the western Pacific during La Niña events.

There is a lot more technical science and theory that could have been discussed in the post like the Walker - Circulation model (from 1923), the Madden - Julian oscillation (which in my mind shows how the ENSO helps drive the PDO and you can see this in the animations of the ENSO region), how the thermocline reacts during ENSO events, Kelvin Waves etc..

And so it appears we are living in a time of Monster Kelvin Waves — powerful confluences of Pacific Ocean heat running just beneath the surface — bringing with them the potential for both record global temperature spikes and strong, climate - wracking El Nino events.

Recently, there appears to have been more cool water than normal associated with the upwelling (cool) Kelvin waves, so we've had the double - dip (2010/11 La Niña and 2011/12 La Niña) and now La Niña conditions — though I don't know that we could classify this as a triple - dip, since we did reach strong El Niño conditions for a short period of time during 2012.

They include alternating «pulses» of warm and cool waters that travel across the equatorial Pacific (from west to east) called Kelvin waves.

Kikuchi K., G. N. Kiladis, J. Dias and T. Nasuno (August 2017): Convectively coupled equatorial waves within the MJO during CINDY / DYNAMO: slow Kelvin waves as building blocks.

ENSO we know is a multi-dimensional phenomenon involving upwelling, wind, cloud, Rossby and Kelvin waves.

Shinoda T., P. E. Roundy and G. N. Kiladis (May 2008): Variability of Intraseasonal Kelvin Waves in the Equatorial Pacific Ocean.

These equatorial waves travel in the opposite direction of Kelvin waves at less than one meter per second.

These westerly wind bursts sometimes generate long waves called Kelvin waves, which travel east along the equator at about 2.5 meters per second.

Not exact matches

Argon gas is blown into the vacuum chamber, where radio waves heat the gas to 1 million or 2 million kelvins — an advantage since higher temperatures lead to greater efficiency.

Kelvin - Helmholtz waves occur at the boundary between two fluids, such as two different bodies of air in Earth's atmosphere.

The five - satellite THEMIS mission launched in 2007 and has provided a unique, long - term dataset that allowed Kavosi and Raeder to do robust statistical analysis of the occurrence of Kelvin - Helmholtz waves.

Using data from NASA's Time History of Events and Macroscale Interactions during Substorms (THEMIS) mission, Raeder and his Ph.D. student Shiva Kavosi (lead author) found that Kelvin - Helmholtz waves actually occur 20 percent of the time at the magnetopause and can change the energy levels of our planet's radiation belts.

«Previously, people thought Kelvin - Helmholtz waves at the magnetopause would be rare, but we found it happens all the time.»

The effect of Kelvin - Helmholtz instability waves (named for 19th century scientists Lord William Thomson Kelvin and Hermann von Helmholtz) can commonly be seen in cloud patterns, on the surface of oceans or lakes, or even a backyard pool.

New research has shown that similar Kelvin - Helmholtz waves also frequently occur in Earth's magnetosphere and allow particles from the solar wind to enter the magnetosphere to produce oscillations that affect Earth's protective radiation belts.

«Our paper shows that the waves, which are created by what's known as the Kelvin - Helmholtz instability, happens much more frequently than previously thought,» says coauthor Joachim «Jimmy» Raeder of the UNH Space Science Center within the Institute for the Study of Earth, Oceans, and Space.