potential instability

potential instability

[pə′ten·chəl ‚in·stə′bil·əd·ē]
(meteorology)

convective instability

convective instabilityclick for a larger image
A parcel of air is stable at A and B and becomes unstable at C indicating convective instability from C onwards.
The state of the atmosphere in which there is a high relative humidity at low levels and a low relative humidity at upper levels, such that if a low layer of air is lifted bodily, the ELR (environmental lapse rate) value through the layer will gradually increase until it attains an unstable value. ELR is the lapse rate in the surrounding air within which a volume of air is being lifted. DALR, or dry adiabatic lapse rate, and SALR, or saturated adiabatic lapse rate, are lapse rates of dry and saturated air masses, respectively, when they are lifted adiabatically. The values of DALR and SALR are 3°C and 1.5°C/1000 ft, respectively. This is often seen in cold fronts, where convective instability is the major cause of instability. Also known as potential instability.
References in periodicals archive ?
Nine months ago, you were on the brink of the abyss but since then from being a country with potential instability you have turned into a country with real possibility.
Uncertainty about the origin of hostile cyber action is a common characteristic of cyber incidents and introduces a further element of potential instability into international affairs.
The most immediate cause of potential instability is North Korea, which now poses not just a conventional military threat to South Korea, but also a nuclear threat to all of Asia, as well as to the US.
Erdogan told the Reuters news agency on Tuesday that the referendum was necessary to avert potential instability, be it from those associated with the coup or Islamist or Kurdish militants.
com/) Pier 1 Imports recalled thousands of sets of Bistro chairs due to their potential instability.
Yet national elections are on 7 December, and with them come concerns about rising expenditures, between potential instability and reallocation of funds.
Hiring habits are changing in a sign of potential instability and employers are retaining their best workers for longer.
In this case, the initial stresses are located inside the zone of potential instability proposed by Lade (1994).
At the same time, a balance must be struck between maximizing the sensitivity of the metal detection system and guarding against potential instability.
3,4,13) * All patients with an os odontoideum should be educated on potential instability.
Evaluate levels of potential instability and extremist violence using the assessment scheme outlined in this report.
The backdrop of potential instability and violence will weigh on the already struggling Thai economy and put pressure on its baht currency, Every said.

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