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HEAT DISTURBANCE [6 records]

Record 1 2011-07-15

English

Subject field(s)
  • Environment
CONT

Bitume may also be recovered by in situ techniques, in which steam or solvents are used to heat and dilute or extract the bitumen. The primary environmental issues associated with in situ recovery include land disturbance and habitat fragmentation during exploration, site preparation and operation...

French

Domaine(s)
  • Environnement

Spanish

Save record 1

Record 2 2006-03-18

English

Subject field(s)
  • Atmospheric Physics
DEF

An area of low pressure caused by very warm, dry air.

CONT

Heat lows or thermal troughs often build north along the coasts of California and Oregon in the summer. Thermal troughs can cause "east winds" in the Washington and Oregon Cascades. If however, a relatively strong disturbance in the upper atmosphere moves across the NW, it will force the thermal trough east of the Cascades. In most cases, a moderate to strong push of marine air will follow, along with strong, gusty, west winds along the east slopes of the Cascades. Gusty winds and thunderstorms can be associated with the passage of a thermal trough.

CONT

A front may have troughing along its length, but not all troughs are frontal! Indeed, not all troughs have ’weather’ associated with them in the cloud/rainfall sense. Lee troughs found downwind of a major range of hills/mountains are often cloudless, and thermal troughs forming over land during the day due to mesoscale heating may only be found by careful drawing of isobars: if the air is dry and/or stable, little significant cloud will be associated with this feature.

OBS

trough: A feature on a weather map where mean sea level pressure (or upper contour heights) are lower than surrounding areas of the atmosphere, with a ’V’ shape to the isobars/contours evident in the pattern. Often associated with unsettled/cloudy weather, but not always.

French

Domaine(s)
  • Physique de l'atmosphère
OBS

thalweg (s'écrit aussi talweg) - trough : Axe de basses pressions prolongeant une dépression. Les isobares sont en forme de V. Son passage est marqué par une brusque rotation du vent (grain).

OBS

talweg : Cette graphie, puisée des Rectifications de l'orthographe recommandées par le Conseil supérieur de la langue française, est attestée dans le Petit Robert (2004).

Spanish

Save record 2

Record 3 2001-02-22

English

Subject field(s)
  • Steam-Powered Machines and Condensers

French

Domaine(s)
  • Machines à vapeur et condenseurs

Spanish

Save record 3

Record 4 1998-09-23

English

Subject field(s)
  • Properties of Paper
  • Graphic Arts and Printing
DEF

Grainy appearance of a heat-set web offset print done on a groundwood containing paper, especially on coated groundwood papers like lightweight coated. A disturbance in the surface structure of a printed sheet which appears as a roughened or raised surface area comparable to a fibre or fibre bundle in size. It occurs in the dryers of heat-set printing presses and is particularly noticeable in areas of heavy ink coverage or if excessive heat is used in the driers.

French

Domaine(s)
  • Propriétés des papiers
  • Imprimerie et arts graphiques
DEF

Défaut de la surface imprimée, d'apparence rugueuse, causé par l'évaporation rapide de poches d'humidité à l'intérieur d'un papier à forte proportion de pâtes mécaniques. Les extrémités des fibres se détachent de la surface du papier et sont nettement visibles.

OBS

Ne pas confondre avec soulèvement des fibres.

Spanish

Save record 4

Record 5 1995-09-18

English

Subject field(s)
  • Climatology
DEF

Weak, wave-like disturbance of the intertropical convergence zone driven by the release of latent heat in accompanying convective precipitation. It usually propagates westwards.

French

Domaine(s)
  • Climatologie
DEF

Perturbation faible, semblable à une ondulation, de la zone de convergence intertropicale régie par le dégagement de chaleur latente de la précipitation convective associée. En général, elle se propage vers l'ouest.

Spanish

Campo(s) temático(s)
  • Climatología
DEF

Perturbación débil, de características ondulatorias, que aparece en la zona intertropical de convergencia. Este tipo de onda se propaga ordinariamente hacia el oeste y es impulsado por el calor latente desprendido que acompaña a la precipitación convectiva.

Save record 5

Record 6 1994-03-17

English

Subject field(s)
  • Corporate Security
  • Security Devices
CONT

Vibration detectors and heat sensors detect physical disturbance phenomena; foil tape, breakwire, and grid wire screens detect actual barrier penetrations.

French

Domaine(s)
  • Sécurité générale de l'entreprise
  • Dispositifs de sécurité

Spanish

Save record 6

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