Sentences with phrase «stratospheric warming event»

This probably has a lot to do with the splitting of the Polar Vortex due to a sudden stratospheric warming event a while back.

The warm air intrusion followed two other related and noteworthy weather events, a sudden warming of the stratosphere, known as a sudden stratospheric warming event, and a splitting of the polar vortex.

These are both complex phenomena, but a sudden stratospheric warming event typically occurs when energy from the lower atmosphere travels upwards, and this can disrupt the area of low pressure and high westerly winds that comprise the polar vortex.

How well did we forecast this sudden stratospheric warming event?

I am fairly confident the report will not mention the Pacific Centennial Oscillation, LIA recovery, NH land amplification, the stratospheric warming event cycles, the less publicized post 2009 proxy reconstructions, which all combined can barely push the «main cause» limit, because with the playing field shifted completely away from the meat of the debate CO2 forcing.

Speaking of polar temperature changes (this is my lame attempt at looking like I'm staying on thread), does anyone here have some expertise they can share regarding the potential (or lack thereof) for tropospheric impact resulting from the ongoing sudden stratospheric warming event in the Arctic?

You have variations in poleward heat transport and a change in the intensity of Sudden Stratospheric Warming events.

Why these stratospheric warming events happen is poorly understood, as are their consequences.

The Arctic surface air temperature is strongly effected by atmospheric forcing and atmospheric energy circulated poleward which creates the Arctic Winter Warming and Sudden Stratospheric warming events.

There are a few papers on these Sudden Stratospheric Warming events but there isn't many since each one of these events seems to have different impacts to none whatsoever.

---- Sudden stratospheric warming events have a huge influence on the troposphere and move downward from high in the statosphere over the pole.

Composite analysis of stratospheric warming events identifies regional tropospheric precursors, which precede stratospheric warmings.

Not exact matches

The stratospheric sudden warming events analyzed in the paper are driven by air waves traveling upward from the troposphere — «so one could argue whether or not the troposphere is the primary cause of events,» Reichler says.

Does anyone have any links or suggestion to the latest solid research being done on Sudden Stratospheric Warming (SSW) events?

REMOVING THE LINEAR EFFECTS OF ENSO AND VOLCANIC AEROSOLS HELP TO SHOW THE TIMING OF THE WARMING Many papers and blog posts that attempt to prove the existence of anthropogenic global warming remove the obvious linear effects of El Niño - Southern Oscillation (ENSO) events and of stratospheric aerosols discharged by explosive volcanic eruWARMING Many papers and blog posts that attempt to prove the existence of anthropogenic global warming remove the obvious linear effects of El Niño - Southern Oscillation (ENSO) events and of stratospheric aerosols discharged by explosive volcanic eruwarming remove the obvious linear effects of El Niño - Southern Oscillation (ENSO) events and of stratospheric aerosols discharged by explosive volcanic eruptions.

Hypothetically (and the relationship is already well established statistically) the gamut of Mid Winter Warmings, Sudden Stratospheric Warmings and Final Warmings in the Arctic stratosphere depend upon the supply of ozone rich air from mid latitudes being thrust into the Arctic stratosphere where ozone is normally in a somewhat depleted state due to erosive nitrogen compounds descending from the mesosphere, in turn related to Particle Precipitation Events that are strongly related to geomagnetic influences and the solar wind.

However, once the forecast models begin to predict the occurrence of a sudden stratospheric warming with confidence, the effects of the event on monthly and seasonal forecasts can be striking.

Identification of unique tropospheric precursors to stratospheric warming / cooling and subsequently tropospheric AO events can help to improve our understanding of troposphere - stratosphere coupling and lead to improvements to forecasts on the subseasonal timescale.

«Stratospheric sudden warming» events occur when temperatures rise and 80 - mph «polar vortex» winds encircling the Artic suddenly weaken or even change direction.