upper anticyclone

upper anticyclone

[′əp·ər ¦ant·i′sī·klōn]
(meteorology)
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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The widespread convection peppers the underside of the upper anticyclone with volatile warm to hot ascending air currents.
But as this new system builds and moves from the ocean to the continent, it is diverted by the strong upper anticyclone. This is the main reason for the historical lack of moisture over most of Namibia.
A slight departure in this past week, saw recovery from the excesses of the week before, so enabling a core upper anticyclone to take root above Botswana.
But, on the northern side of the upper anticyclone, extensive convective activity seems set to persist into the weekend but, behind the departing trough, the upper high extends eastward squeezing the moisture belt ahead of it.
The persistent upper anticyclone above Botswana is also complementary.
The upper anticyclone has reformed further east and the weak trough line lies across Namibia.

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