Category:Weather: Difference between revisions
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=== Trough === | === Trough === | ||
A trough is an elongated U-shaped area of low pressure with high pressure on either side which may bring about a gradual wind shift. It is also the V-shape formed by the sharp bending of the isobars along a frontal surface. | A trough is an elongated U-shaped area of low pressure with high pressure on either side which may bring about a gradual wind shift. It is also the V-shape formed by the sharp bending of the isobars along a frontal surface. | ||
=== Trowal === | |||
Trough of Warm Air Aloft. Typically used during winter weather, it is a "tongue" of relatively warm/moist air aloft that wraps around to the north and west of a mature cyclone. It is best analyzed between 750-550 millibars using equivalent potential temperature (theta-e). Areas of intense lift and frontogenesis are commonly associated with trowals, hence they are favoured regions for heavy and/or prolonged precipitation. During a winter storm, the heaviest snowfall amounts frequently occur along and north of the trowal axis. | |||
Ref: [http://www.expertglossary.com/weather/definition/trowal Trowal Definition] | |||
=== Inversion === | === Inversion === | ||
An indication of the presence of wind shear | An indication of the presence of wind shear | ||
Revision as of 16:02, 11 February 2009
This is the category page for weather. Any aviation topics related to weather can be found here.
Trough
A trough is an elongated U-shaped area of low pressure with high pressure on either side which may bring about a gradual wind shift. It is also the V-shape formed by the sharp bending of the isobars along a frontal surface.
Trowal
Trough of Warm Air Aloft. Typically used during winter weather, it is a "tongue" of relatively warm/moist air aloft that wraps around to the north and west of a mature cyclone. It is best analyzed between 750-550 millibars using equivalent potential temperature (theta-e). Areas of intense lift and frontogenesis are commonly associated with trowals, hence they are favoured regions for heavy and/or prolonged precipitation. During a winter storm, the heaviest snowfall amounts frequently occur along and north of the trowal axis. Ref: Trowal Definition
Inversion
An indication of the presence of wind shear
Pages in category "Weather"
The following 9 pages are in this category, out of 9 total.
