Sentences with phrase «stratospheric air»

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.

Studies using SF6 to estimate the mean age of stratospheric air have assumed the influence of mesospheric photochemical destruction is negligible.

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.

Murphy's colorful blog, «Super-TIGER on the Ice,» documented the alternating moments of astonishing natural beauty (sparkling glaciers at 2 a.m., surprise penguin visits) and technical tedium (such as making sure the detector's connections still work in the thin stratospheric air).

At that point, energy exchange with stratospheric air ceases and a process known as adiabatic descent begins.

The ozone is then transported by stratospheric air currents to the Arctic and to Antarctica.»

Waugh, D.W., and T.M. Hall, 2002: Age of stratospheric air: Theory, observations, and models.

As the winds slow, air sinks and rapidly warms while the stratospheric air is compressed.

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.