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 periodicals archive ?
I know he has to calm down a bit with things like the salute he made to rival fans.
If the tantrum is escalating find an area for her to calm down in (we have a calm down chair) where she can regain control, calm down and think about why she got so upset.
CALM DOWN BLUES star Jermaine Pennant (circled) is calmed down by a police officer as Dean Howell (in red) takes a punch.
Calm Down has a fine chance in the Prudential Bache Ltd Handicap Chase (2.
Many children diagnosed with attention-deficit hyperactivity disorder (ADHD) calm down and otherwise improve when given the stimulant methylphenidate, or Ritalin.
The menu also features: Feet First, a cooling summer foot treatment with Eucalyptus; Candlelight & Roses - A Romantic Interlude, transforms the bath into a private sensuous enclave; Heads Up, Calm Down, a soothing shoulder, neck and scalp massage; and a Stress Relief/Relaxation Massage, assists circulation and ensures a restful slumber.
An insider said worried bosses had to calm down the usually mild-mannered sportsman.
Calm down and listen to the doctor," prompting the Labour benches to erupt in outrage, with party leader Ed Miliband appearing to demand an apology.
Cardiff Magistrates' Court heard Sim, of Evans Street, Barry, was told to calm down by officers and walk away.
How many actual trips to the mound would it take to calm down a miffed Brad Penny?
Ayresome Primary wrote to Barclay's Bank asking if it could help create a bright, soft, fun area for children to relax or calm down in when they get stressed.
She continued to shout as police tried to get her to calm down and she was arrested.