calm


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calm

Meteorol of force 0 on the Beaufort scale; without wind

Calm

 

a condition of little or no wind. On the Beaufort scale, wind velocity during a calm is 0–0.2 m/sec. Calms are usually observed within stable anticyclones, in cols, and in the intertropical convergence zone. Calms occur more often in valleys and basins than in open areas with free circulation of air. There is little turbulence during a calm, and therefore harmful atmospheric aerosols (smoke and gas) may accumulate in the lowest atmospheric layer.

calm

[käm]
(meteorology)
The absence of apparent motion of the air; in the Beaufort wind scale, smoke is observed to rise vertically, or the surface of the sea is smooth and mirrorlike; in U.S. weather observing practice, the wind has a speed under 1 mile per hour or 1 knot (1.6 kilometers per hour).

calm

The absence of wind or an apparent lack of motion of the air. It is depicted on synoptic charts as image.
References in classic literature ?
In this inflamed atmosphere the heat appeared to vibrate as it does above a blazing hearth, while the mind grew desperate in contemplating the limitless calm, and could see no reason why the thing should ever end, since immensity is a species of eternity.
The king bounded forward to be nearer to the person who was about to enter, but, suddenly reflecting that it was a movement unworthy of a sovereign, he paused, assumed a noble and calm expression, which for him was easy enough, and waited with his back turned towards the window, in order, to some extent, to conceal his agitation from the eyes of the person who was about to enter.
But before Pierre could decide what answer he would send, the countess herself in a white satin dressing gown embroidered with silver and with simply dressed hair (two immense plaits twice round her lovely head like a coronet) entered the room, calm and majestic, except that there was a wrathful wrinkle on her rather prominent marble brow.
There are poets who have chosen rural life for their subject for the sake of its passionless repose; and there are times when Wordsworth himself extols the mere calm and dispassionate survey of things as the highest aim of poetical culture.
Comparatively calm, Mistress Blythe, comparatively calm.
We set to work: he sufficiently interested in the game, but calm and fearless in the consciousness of superior skill: I, intensely eager to disappoint his expectations, for I considered this the type of a more serious contest, as I imagined he did, and I felt an almost superstitious dread of being beaten: at all events, I could ill endure that present success should add one tittle to his conscious power (his insolent self-confidence I ought to say), or encourage for a moment his dream of future conquest.
The high wind blew from the north-west for twenty-four hours, when it fell calm, and in the night sprang up from the south-west.
As yet hath his knowledge not learned to smile, and to be without jealousy; as yet hath his gushing passion not become calm in beauty.
He stood before her, pale, his lower jaw quivering, and besought her to be calm, not knowing how or why.
By degrees the calm and heavenly scene restored me, and I continued my journey towards Geneva.
What with the heat, and what with the vexation of the weather, neither officers nor men seemed to be in heart for their duty while the calm lasted.
He was not scared; he knew this because, firmly believing he would never see another sunrise, he remained calm in that belief.