Barometric Tendency

barometric tendency

[bar·ə′met·rik ′ten·dən·sē]
(meteorology)
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Barometric Tendency

 

in meteorology, the magnitude and character of a change in atmospheric pressure at a certain location during the three hours preceding an observation. The barometric tendency is determined by the curve recorded on a barograph. Data concerning the barometric tendency are plotted on surface weather maps used for forecasting.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

pressure tendency

pressure tendencyclick for a larger image
On a station model drawn on a synoptic chart, pressure tendency is indicated at 3 o'clock position.
The change in pressure during three hours prior to the observation recording time. It is indicated on the right of station picture in a synoptic chart. Also known as a barometric tendency. See also tendency.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved