Sentences with phrase «warmer stratospheric air»

Cold air at the top of ascending columns is forced to one side by warmer air continuing to flow up from beneath but it is blocked by the warmer stratospheric air above and so flows laterally and downward to the top of descending columns, following the undulating slope of the tropopause.

Not exact matches

Besides SSCE, scientists have also been investigating stratospheric sulfur injections — firing sun - reflecting aerosols into the air, similar to the cooling effect after a volcanic eruption — and cirrus cloud thinning, where you thin the top level of clouds, which have a warming effect on the planet.

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.

After it reaches streams and oceans, nitrogen molecules contribute to algal blooms and return to the air to warm the atmosphere and deplete stratospheric ozone.

The Montreal Protocol had no impact on cleaning the air, it stopped the growth of CFCs which are powerful greenhouse gases (in addition to their role in depleting stratospheric ozone), therefore it slowed global warming, rather than increasing it, and we aren't trying to save ground - level ozone.

Whilst flowing across the area between the two columns that cold air does not warm up by compression despite falling in height because it remains in contact with stratospheric air with which it can freely exchange energy by conduction and mixing.

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 Warming and Sudden Stratospheric warming warming events.

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.

Erl on Feb 18, 15:03:07 «Sudden stratospheric warmings in the Arctic depend upon the transport of ozone rich air from above the Sea of Japan.

Sudden stratospheric warmings in the Arctic depend upon the transport of ozone rich air from above the Sea of Japan.

In addition, a phenomenon called sudden stratospheric warming, apparently the result of strong downward air motion, also occurs in the late winter and spring at high latitudes.

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.

(Any higher and they start to suffer stratospheric heating due to the vertical temperature profile reversing at the tropopause — the lapse rate changes sign and the air gets warmer instead of colder with altitude.)

Posted by Neven on February 26, 2018 at 19:42 in AGW, Air temperature, Arctic Basin, DMI, Greenland ice sheet, Records, Sudden stratospheric warming, Uni Hamburg, WACC, Winter weirdness Permalink Comments (24)

But every two years on average, the stratospheric air suddenly is disrupted and the vortex gets warmer and weaker, and sometimes even shifts direction to clockwise.