Sentences with phrase «zonal circulation»

This is seen observationally and in models as a weakening of the zonal circulation (Walker) in the tropics, and to a lesser extent, in the meridional (Hadley) since the rate of exchange of water parcels between the boundary layer and free atmosphere goes down.

Rossby, 1939: Relation between variations in the intensity of the zonal circulation of the atmosphere and the displacements of the semi-permanent centers of action

We found that brown dwarfs are similar to the gas giants in the Solar System (in that they have zonal circulation), but that they are more like Neptune and less like Jupiter (their brightness variations are driven by large - scale waves in zones rather than Great Red Spot - like storms as in Jupiter).

The slow rotation regime is characterized by a mean zonal circulation that spans from the day to night side.

So, based on our results we would expect that most giant exoplanets will have zonal circulation; we should expect that their atmospheres are not homogeneous, structureless, but in fact should display large brightness variations in the infrared.

Not exact matches

Merlis, T. M., and T. Schneider, 2011: Changes in zonal surface temperature gradients and Walker circulations in a wide range of climates.

Stronger vertical mixing invigorates the MOC [Meridonal Overturning Circulation] by an order of magnitude, increases ocean heat transport by 50 — 100 %, reduces the zonal mean equator - to - pole temperature gradients by up to 6 °C, lowers tropical peak terrestrial temperatures by up to 6 °C, and warms high - latitude oceans by up to 10 °C.»

Show data which shows a more zonal atmospheric circulation index during a prolonged solar minimum period or vice versa..

The atmospheric circulation of a planet that has no zonal asymmetries in boundary conditions will remain axisymmetric if the initial condition is.

These zonal gradients of SST result in an anomaly in circulation of two Walker cells on the tropical Pacific, with a humid region in the Eastern and the Western Pacific.

The AO / NAO have not become increasingly positive in other word the atmospheric circulation if anything is less zonal the opposite of what AGW theory called for.

The zonal variance of P — E is unaffected by circulation shifts, and may still increase with the increase in atmospheric moisture content.

So we can calculate the «ideal» Hadley circulation that would result in that case by choosing an axisymmetric initial condition in an idealized GCM without zonal inhomogeneities in boundary conditions.

Walker Circulation - Direct thermally driven zonal overturning circulation in the atmosphere over the tropical Pacific Ocean, with rising air in the western and sinking air in the easteCirculation - Direct thermally driven zonal overturning circulation in the atmosphere over the tropical Pacific Ocean, with rising air in the western and sinking air in the eastecirculation in the atmosphere over the tropical Pacific Ocean, with rising air in the western and sinking air in the eastern Pacific.

Petoukhov et al. (34) proposed a common mechanism for generating persistent high - amplitude quasibarotropic planetary - scale wave patterns of the NH midlatitude atmospheric circulation with zonal wave numbers m = 6, 7, and 8 that can explain a number of the major NH summer extremes over the 1980 — 2011 period (34, 35).

The long - term dynamics of the atmospheric pressure fields over the Northern hemisphere during the last 90 years are characterised by the alternation of approximate 30 - year periods («circulation epochs») with relative dominance of either zonal or meridional atmospheric circulation (Dzerdzeevski 1969; Girs 1971; Lamb 1972; Lambeck 1980).

Both easterly and westerly winds increase during the zonal type of circulation and both decrease in the periods of the meridional type of the circulation (Lambeck 1980).

Fig 2.3 Dynamics of the detrended global temperature anomaly (dT) and the Zonal Atmospheric Circulation Index (zonal ACI)(see text for detaZonal Atmospheric Circulation Index (zonal ACI)(see text for detazonal ACI)(see text for details).

You're right about GLAAM, I meant zonal ACI (Atmospheric Circulation Index) http://www.fao.org/docrep/005/Y2787E/y2787e03a.htm

However, another source of uncertainty in the monthly mean zonal cloud radiative effects comes from the low frequency of clear - sky occurrence, when averaging over regions that correspond to the spatial resolution of general circulation models.

And noting «zonal mean - winds constitute an important element of global atmospheric circulation,» they go on to suggest,» if the solar cycle can influence zonal mean - winds, then it may affect other features of global climate as well, including oscillations such as the NAO and MJO, of which zonal winds are an ingredient» Thus, «the cause of this forcing» as they describe it, «likely involves some combination of solar wind, galactic cosmic rays, ionosphere - Earth currents and cloud microphysics.»

So unless the air circulation becomes more zonal / poleward again we will continue to see more incursions of both polar and equatorial air masses into the mid latitudes (with the greater extremes that implies) but with a generally cooling trend.

... giant planets, Saturn has an atmospheric circulation that is dominated by zonal (east - west) flow.

Still no tropospheric hot spot near the equator, still no pronounced stratospheric cooling especially near the poles both of which are cornerstones of the global waming models, along with the more zonal (+ ao) atmospheric circulation pattern.

The Atlantic Meridional Overturning Circulation (AMOC)-- characterized by warm surface waters flowing northward and cold deep waters flowing southward throughout the Atlantic basin — is defined as the zonal integral of the northward mass flux at a particular latitude.

This atmospheric motion is known as zonal overturning circulation.

Meridional Overturning Circulation (MOC)- Meridional (northsouth) overturning circulation in the ocean quantified by zonal (east - west) sums of mass transports in depth or densCirculation (MOC)- Meridional (northsouth) overturning circulation in the ocean quantified by zonal (east - west) sums of mass transports in depth or denscirculation in the ocean quantified by zonal (east - west) sums of mass transports in depth or density layers.

The second figure shows a zonal average of this circulation and the locations of these features.

In a new study published in the Journal of Climate, the Community Earth System Model Large Ensemble (CESM - LENS) of simulations is used to explore how various characteristics of the mid-latitude atmospheric circulation (zonal flow, synoptic blockings, jet stream meanders) evolve along the course of the 21st century under the RCP8.5 scenario of anthropogenic emissions.

This east - west (zonal) circulation is called the Walker Ccirculation is called the Walker CirculationCirculation.