Sentences with phrase «atmospheric waves over»

Not exact matches

A cloud over a mountain may look stationary, but it more closely resembles a standing wave in a river — an atmospheric river.

The resulting turbulence creates atmospheric waves — some of which can stretch 1,500 miles — that race across the Sahara and over the Atlantic.

Instead, a new study suggests, the phenomena occur when four types of slow - moving, high - altitude atmospheric waves merge over a small region and, in turn, temporarily drive a 10 - fold - or - stronger brightening of an ever - present glow in the upper atmosphere (green layer in the image above).

Provoked by both the quake and the tsunami, these atmospheric gravity waves traveled over and to the west of Japan, while the tsunami was stopped by the coast.

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.

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.

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).

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).

On a related note, there has been a considerable amount of recent interest focused upon a possible increase in the frequency and / or intensity of high - amplitude atmospheric wave patterns (and associated extreme weather events) due to enhanced warming of the Arctic over the past 2 - 3 decades.

The heat wave was due primarily to a natural phenomenon called an atmospheric «blocking pattern», in which a strong high pressure system developed and remained stationary over western Russian, keeping summer storms and cool air from sweeping through the region and leading to the extreme hot and dry conditions.