Sentences with phrase «jet stream flows»

In summer months the polar jet stream flows mostly across Canada.

The simulation monitored a variable that responds to jet stream flow changes and can indicate global - scale weather instability.

Since meteorologists can only accurately predict weather within the 10 to 12 days between jet stream flow changes, a shift in this time frame would directly impact weather predictability.

Lupo and Andrew Jensen, who earned his doctorate at MU, used an existing climate model to simulate jet stream flow in the Northern Hemisphere.

A NASA illustration showing the jet stream flowing across North America.

Not exact matches

People are dying from the ice and snow.Perhaps what we need is the jet stream to flow over the CPAC conference and allow some cooler air to drown out the rightwing hot air.

The NAO indicates the position of the jet stream — which is a giant current of air that broadly flows eastwards over mid-latitude regions around the globe — through a diagram which shows «negative» and «positive» spikes, similar to how a heart monitor looks.

A jet stream is a fast - moving horizontal or tubular current of air that primarily flows west to east.

The wavenumber - 5 pattern is a ring of five high - and low - pressure systems in the atmosphere that circles the Earth's surface above the midlatitudes, or the temperate zone, running in a direction opposite to the flow of the jet stream.

The model also predicts a radial flow, which sucks winds from the high - speed jet streams toward the vortex center.

Finally, the Red Spot sits between two strong jet streams that flow in opposite directions and may slow down its spinning.

The jet stream then pinched off the flow and left the warm air behind to stagnate, Mote says.

Lockwood and his team suggest that the sun is affecting Northern Europe by causing an increase in «blocking» of the northern jet stream, a fast - flowing river of air moving through the atmosphere.

El Niño tends to tamp down on tornadoes because it shifts the jet stream further south over the U.S., which blocks moisture from flowing northward from the Gulf of Mexico.

Now, more and more often, the jet stream seems to weaken and allow cold Arctic air to flow south, with warm air flowing north to replace it.

The disruption to that wind pattern can reverberate through the atmosphere, impacting the flow of air from the equator to the poles, which in turn can affect the jet stream and weather around the globe.

As the Arctic warms like crazy, heat flow there slows, thus jet streams slow and are wavier; the same slowing and waviness increase happens with ocean currents.

Francis argued that the warming of the Arctic, at a much faster pace than the mid-latitudes, is slowing the jet stream and prompting extreme weather events when there's weak atmospheric flow.

In Liquidity inc., Steyerl makes one of her characteristic intellectual leaps and connects extreme financial events to extreme climate events: the jet stream of money changes direction when the Dow Jones collapses, then suddenly a gonzo weather forecaster, masked in black, is gesturing across the most political of politically geographical maps you ever saw — noting failed states and off - shore tax havens, isobars indicating flows of capital rather than weather fronts.

What we * do * suggest is that the weakened poleward temperature gradient owing to the rapidly warming Arctic relative to mid-latitudes (Arctic amplification) should increase the north - south component of the upper - level flow, making highly wavy jet - stream patterns (like the one this winter) more likely.

At 2 pm, the storm experts at SELS noticed that the jet stream was splitting into two branches, like a river flowing around an island.

It all depends on the fast flowing air currents (jet stream) that the plane flies in.

Flying with the flow shortens the journey time or against the flow of a jet stream extends it.

If the differential is large then the jet stream speeds up, and like a river flowing down a steep hill, it ploughs through any obstacles — such as areas of high pressure that might be in its way.

One theory is that the warm Arctic could be influencing the jet stream — a band of fast - flowing air high up in the atmosphere.

High air pressures in the Arctic decreased the east - west flow of the jet stream, while also increasing its tendency to blow from north to south and draw cold air southward from the Arctic.

The path of the jet stream «typically has a meandering shape, and these meanders themselves propagate east, at lower speeds than that of the actual wind within the flow.

The second feature is a very strong river of air, known as the jet stream, that flows from west to east in the middle latitudes of each hemisphere.

The Arctic Oscillation can determine the track of the jet stream, which either flows West to East, keeping the cold polar air trapped in the Arctic, or it loops southward bringing cold polar air to Europe.

Furthermore the topography of the western USA has always caused the jet stream to meander northward and then flow southward on the eastern side of the Rocky Mountains.

The westerly flow is most evident between 5 and 12 km (3 and 7 miles) or so above the Earth's surface and contains the jet streams.

The polar jet streams are narrow, fast - flowing rivers of wind high in the Earth's atmosphere that push cold and warm air masses around, playing an important role in determining the weather.

Air from the Pacific is picked up and transported by the northern hemisphere jet stream — a fast flowing, narrow air current in the upper atmosphere.

The jet stream is a river of air that flows roughly west to east across the Earth.

This heats up the ocean and surrounding area, and this effect has the potential to change global weather patterns, vary the flow of winds and alter the position of the jet stream, Wagner explained.

When the jet stream is strong it flows well and that doesn't happen, but when it's weak it can meander, flopping north and south in various locations.

More meridonal jet stream tracks flowing around the world between the climate zones result in longer lines of air mass mixing at climate zone boundaries.

The high - angle tropopause boundary within the fold is the locus of an exothermic oxygen / ozone conversion reaction accelerating a jet stream which flows away perpendicular to the cross section (cyan contours).

The base of the Ferrel cell is characterized by the movement of air masses, and the location of those air masses is influenced in part by the location of the jet stream, even though it flows near the tropopause.

The negative phase is associated with a westward retraction of that jet stream toward eastern Asia, blocking activity over the high latitudes of the North pacific, and a strong split - flow configuration over the central North Pacific.

Enhanced warming of the Arctic affects the jet stream by slowing its west - to - east winds and by promoting larger north - south meanders in the flow.

The disruption of the jet stream started from the unusual regions of Arctic Ocean open water stabilizing the Polar circulation flow from the Pole Southwards.

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.

By contrast, in 2010 and 2011, a persistent dip in the jet stream brought a stronger southwesterly flow of air at upper levels of the atmosphere along the East Coast, which helped turn many storms out to sea before reaching landfall.