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 ?
If he had not been under the spell of the curious calmness which had taken possession of him he would have been more wretched than ever.
The officer superintended all these details with the same calmness Milady had constantly seen in him, never pronouncing a word himself, and making himself obeyed by a gesture of his hand or a sound of his whistle.
So, in fact, it is written," said D'Artagnan, affecting calmness.
In the society in which Prince Andrew lived he had never seen anyone who together with awkward and clumsy gestures possessed such calmness and self-assurance; he had never seen so resolute yet gentle an expression as that in those half-closed, rather humid eyes, or so firm a smile that expressed nothing; nor had he heard such a refined, smooth, soft voice; above all he had never seen such delicate whiteness of face or hands- hands which were broad, but very plump, soft, and white.
He has everything at home then--no teasing with personal speculations--he can get calmness and freedom.
He argued that it enticed men with the calmness of its looks, but when it had induced them to plow its waters, it grew rough and destroyed them.
It is needless to relate them here; they came out at his trial, and the revelation of his calmness in confronting them came near to saving his neck.
I'm sure I don't know what we're ever going to do here this winter," said Felicity, with the calmness of despair.
Markham,' said she, with a kind of desperate calmness, 'I must tell you plainly that I cannot do with this.
Mr Allworthy, who had settled all his affairs in this world, and was as well prepared as it is possible for human nature to be for the other, received this information with the utmost calmness and unconcern.
And she accepted his apologies with a calmness that astonished him.
I accomplish my destiny with a calmness which is terrible to myself.