Sentences with phrase «as atmospheric waves»

The winds flow from east to west and then swap to moving from west to east, completing a cycle roughly every 28 months as atmospheric waves ripple up from large - scale convection in the tropics.

Not exact matches

For their part, though, global warming skeptics such as atmospheric physicist Fred Singer maintain that cold weather snaps are responsible for more human deaths than warm temperatures and heat waves.

As the shock wave travels away from the blast, it changes the atmospheric pressure and creates a low - pressure trough in its wake.

As the balloon rises in altitude, the change in atmospheric pressure on the balloon also changes, and the pressure waves are larger than infrasound waves.

That excess tropical energy fueled rising air in a process known as convection, creating rain, releasing heat, and forming large - scale atmospheric patterns called Rossby waves.

It is common for atmospheric waves to grow in amplitude with height as the air becomes thinner.

TMT would be able to measure the propagation direction, propagation speed, as well as the energy containing wave number of the atmospheric waves.

In combinations with numerical simulations, these observations can help constrain the properties of the waves, as well as the background states for wave propagation, for instance, the atmospheric stratification.

Many of the planetary scale atmospheric waves are expressed as thermal variations on the background atmosphere.

Naturally, scientists wanted to see if they could see any movement on these lakes, as it could tell them more about atmospheric dynamics — particularly the winds, because waves are caused by winds transferring their kinetic energy into the liquid.

The recurring wave pattern of intense rain and thunderstorms, followed by a dry phase as the force moves across the cooler Pacific Ocean occurs every 30 - 60 days, giving this atmospheric wave its unique stamp on the climate.

These simulations helped them to understand the forces causing shifts in the jet that increase the survival of large - scale weather events, technically known as atmospheric mid-latitude synoptic waves.

Increasing atmospheric concentrations of carbon dioxide do not only cause global warming, but probably also trigger increased occurrences of extreme weather events such as long - lasting droughts, heat - waves, heavy rainfall events or extreme storms.

The ambiance of upper - atmospheric diffusion is especially palpable in such installations from the 1990s as St. Elmo's Breath (1992), and in a recent series of wide and tall glass panels animated with dissolving waves of color.

Sea ice variability occurs near the Pole, which is too far north to have a direct impact on these waves but it could have an indirect impact on another phenomenon, such as snow cover or a regional atmospheric patter (which could then impact the winter AO).

The work is an estimate of the global average based on a single - column, time - average model of the atmosphere and surface (with some approximations — e.g. the surface is not truly a perfect blackbody in the LW (long - wave) portion of the spectrum (the wavelengths dominated by terrestrial / atmospheric emission, as opposed to SW radiation, dominated by solar radiation), but it can give you a pretty good idea of things (fig 1 shows a spectrum of radiation to space); there is also some comparison to actual measurements.

Of course, there are plenty of negative feedbacks as well (the increase in long wave radiation as temperatures rise or the reduction in atmospheric poleward heat flux as the equator - to - pole gradient decreases) and these (in the end) are dominant (having kept Earth's climate somewhere between boiling and freezing for about 4.5 billion years and counting).

That is an incredible bit of hand - waving there, and completely contradicted by the basic math — atmospheric concentration increase has been less than our emissions for about the last 60 + years, meaning nature is acting as a net sink over that period.

[18] When models of different physical processes are combined, such as combinations of atmospheric, ocean and wave models, the multi-model ensemble is called hyper - ensemble.

QRA can be regarded as an extension of the Haurwitz - type mechanism (42) of a strong increase in the amplitude of the midlatitude atmospheric barotropic wave system response to stationary external barotropic thermal forcing, with a spatial frequency m approaching the natural stationary spatial frequency k of the wave system, to the case of external barotropic thermal and orographic forcing under a latitude - dependent u ¯ and an integer m over the midlatitude belt on the spherical Earth.

Forced Rossby waves occur as a response of the midtroposhere and high - troposphere atmospheric circulation to the external diabatic and orographic forcing (25, 39, 40), which arises, e.g., from the thermal contrast between land and oceans as well as from mountain ranges.

The corresponding working quasilinear wave equation for the barotropic azonal stream function Ψm ′ of the forced waves with m = 6, 7, and 8 (m waves) with nonzero right - hand side (forcing + eddy friction) yields (34) u˜ ∂ ∂ x (∂ 2Ψm ′ ∂ x2 + ∂ 2Ψm ′ ∂ y2) + β˜ ∂ Ψm ′ ∂ x = 2Ω sin ϕ cos2 ϕT˜u˜ ∂ Tm ′ ∂ x − 2Ω sin ϕcos2 ϕHκu˜ ∂ hor, m ∂ x − (kha2 + kzH2)(∂ 2Ψm ′ ∂ x2 + ∂ 2Ψm ′ ∂ y2), [S3] where x = aλ and y = a ln -LSB-(1 + sin ϕ) / cos ϕ] are the coordinates of the Mercator projection of Earth's sphere, with λ as the longitude, H is the characteristic value of the atmospheric density vertical scale, T˜ is a constant reference temperature at the EBL, Tm ′ is the m component of azonal temperature at this level, u˜ = u ¯ / cos ϕ, κ is the ratio of the zonally averaged module of the geostrophic wind at the top of the PBL to that at the EBL (53), hor, m is the m component of the large - scale orography height, and kh and kz are the horizontal and vertical eddy diffusion coefficients.

As regards the meridional wave numbers of the above - mentioned dominant partial waves of the external forcing with a given m = 6, 7, and 8, the observational and model results of the 1D Fourier transform of the midtroposphere extratropical atmospheric fields attest that the characteristic values of lm for these waves (see, e.g., refs.

In the northern hemisphere 500 - hPa atmospheric flow the shift manifested itself as a collapse of a persistent wave - 3 anomaly pattern and the emergence of a strong wave - 2 pattern.»

Although the atmospheric CO2 concentration has been rising for decades, we are now only just starting to feel the effects of a warming climate, such as melting glaciers, stronger heat waves and more violent storms.

As I have pointed out previously on spiked, when one out of six new studies showed that a new record had been set for Arctic sea ice extent, the Guardian's Damian Carrington declared: «Ice is the white flag being waved by our planet, under fire from the atmospheric attack being mounted by humanity.»

This very unusual atmospheric configuration — in which the large - scale atmospheric wave pattern appears to be largely «stuck» in place — has been characterized by a seemingly ever - present West Coast ridge and a similarly stubborn trough over central and eastern United States (commonly referred to in media coverage as the «Polar Vortex,» though this terminology is arguably problematic).

Now as it happens, I did more that wave arms, I gave a specific argument that demonstrates that anthropogenic emissions are responsible for the observed rise in atmospheric CO2 (the mass balance argument).

Wang et al. (2014) find that tropical West Pacific SST warm anomalies (associated with the West Pacific Warm Pool that acts as a precursor of El Niño) played a leading role in causing the strength and longevity of the Triple R by generating a recurring series of atmospheric «Rossby waves» that propagated from west to east across the Pacific Basin.

Scientists have now observed that one of these atmospheric tides, known as diurnal wave number 3 (DE3), propagates upward to reach the thermosphere.

As a meteorological example I am aware of atmospheric Rossby waves but I am far from absolutely certain.