upper air


Also found in: Acronyms.

upper air

[′əp·ər ′er]
(meteorology)
The region of the atmosphere which is above the lower troposphere; although no distinct lower limit is set, the term is generally applied to levels above that at which the pressure is 850 millibars.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

upper air

In synoptic meteorology and in weather observation, the portion of the atmosphere that is above the lower troposphere. No distinct lower limit is set, but the term is generally applied to the levels above 5000 ft AMSL (above mean sea level) or 850 hectopascals (millibars).
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved
References in classic literature ?
There were a few lighters and barges, but none of the great merchantmen such as ply the upper air between the cities of the outer world.
When he had regained the upper air he started for his old home, and having found his mother still living in the old house where he had left her, they settled down together very happily.
He sent out quite needlessly a third sack of ballast and a fourth, and presently had the immense satisfaction of soaring up out of the damp and chill into the clear, cold, upper air in which the day still lingered.
But the overall high pressure control in the upper air, from 25,000 to 45,000 feet proved too much and the recorded rainfall on Monday and Monday night was scanty at best.
An official of PMD told that this rain would not be a part of monsoonal activity which is caused by easterly wave but it would be the result of westerly trough present in the upper air.
The larger diameter for the upper air ring, which is equipped with the gauge controlling features, is needed to accommodate for the blow up ratio.
" However, the western disturbance in this month has been more active, inducing systems in form of a depression or low pressure area instead of usual upper air cyclonic circulations," Dr B.
Forecasters at the NCMS said clouds would enter the emirates from the west due to an upper air low pressure.
Men and boys went down not always aware of the dangers Into places not meant for upper air breathing strangers.
Fittingly, of the songs taken from recent second album Upper Air, it was Northern Lights that shone brightest, although Crooked Lust came a close second.
On the hill is one of four buildings where fluorescence detectors watch (at night) for simultaneous glimmers of light in the upper air.