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Frontogenesis information


Frontogenesis is a meteorological process of tightening of horizontal temperature gradients to produce fronts. In the end, two types of fronts form: cold fronts and warm fronts. A cold front is a narrow line where temperature decreases rapidly. A warm front is a narrow line of warmer temperatures and essentially where much of the precipitation occurs. Frontogenesis occurs as a result of a developing baroclinic wave. According to Hoskins & Bretherton (1972, p. 11), there are eight mechanisms that influence temperature gradients: horizontal deformation, horizontal shearing, vertical deformation, differential vertical motion, latent heat release, surface friction, turbulence and mixing, and radiation. Semigeostrophic frontogenesis theory focuses on the role of horizontal deformation and shear.

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Frontogenesis

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Frontogenesis is a meteorological process of tightening of horizontal temperature gradients to produce fronts. In the end, two types of fronts form: cold...

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Cold front

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across a mountain barrier, cold fronts can pass without cloudiness. Frontogenesis is the process of creating or steepening the temperature gradient of...

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Thermal wind

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temperature gradient results. Thermal wind causes a deformation field and frontogenesis may occur. A horizontal temperature gradient exists while moving North-South...

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Brian Hoskins

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for his work on the mathematical theory of extratropical cyclones and frontogenesis, particularly through the use of potential vorticity. He has also produced...

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Weather

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heating (the formation of zones of temperature and moisture gradients, or frontogenesis) can also be due to the weather itself in the form of cloudiness and...

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Frontolysis

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In contrary to areas of "Frontogenesis", the areas where air masses diverge are called areas of frontolysis. Frontogenesis Outflow boundary Thralls,...

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Stationary front

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up and over the cold air, responsive to the geostrophic induced by frontogenesis. A wide variety of weather may occur along a stationary front. If one...

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1996 Oakfield tornado outbreak

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wind pattern. Strong fronts displayed frontogenetic behavior, with frontogenesis at 850 hPa level curving from the border of South Dakota and Nebraska...

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Weather map

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imagery, and model-derived fields such as atmospheric thickness and frontogenesis in combination with surface observations to make for the best possible...

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Glossary of tornado terms

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downdraft (or front-flank downdraft) (FFD) Fractus cloud (Fr) Front Frontogenesis Fujita scale (F scale) Funnel cloud Gate-to-gate shear GMT (Greenwich...

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Weather front

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process for geostrophic balance on the rotating Earth in response to frontogenesis. Warm fronts are at the leading edge of a homogeneous advancing warm...

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1997 Jarrell tornado

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the main feature was a cold front pushing its way south into Texas. Frontogenesis helped aid in forcing some of the upward vertical motions. From the...

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Jet stream

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'quasi-geostrophic'. The polar front jet stream is closely linked to the frontogenesis process in midlatitudes, as the acceleration/deceleration of the air...

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James Murdoch Austin

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Under Sverre Petterssen, the thesis he produced was entitled Fronts and Frontogenesis in Relation to Vorticity. He became a naturalized US citizen in 1946...

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Cyclogenesis

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Thorpe, Alan J. (1994). "Frontal Wave Stability during Moist Deformation Frontogenesis. Part II: The Suppression of Nonlinear Wave Development". Journal of...

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Surface weather analysis

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imagery, and model-derived fields such as atmospheric thickness and frontogenesis in combination with surface observations to make for the best possible...

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Glossary of meteorology

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Types of fronts include cold fronts, warm fronts, and occluded fronts. frontogenesis The meteorological process by which a weather front is created, usually...

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Galerna

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directly caused by oceanic fronts initiated out of the region. The local frontogenesis is more frequently initiated by the relatively cold marine southwesterly...

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2004 Christmas Eve United States winter storm

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the highest amount of 14 inches (36 cm) reported at Quinby and Tabb. Frontogenesis (strengthening temperature gradient) within the comma head of the extratropical...

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Prognostic chart

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fields such as vorticity, stability indices,[clarification needed] or frontogenesis. Forecast errors need to be taken into account and can be determined...

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December 2017 North American winter storm

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northeastward towards the Big Bend region in Florida. A zone of intense frontogenesis also formed north of the low-pressure area near the Texas coast, and...

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Arnt Eliassen

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areas of research included free and thermally driven circulations, frontogenesis, and shear and gravitational–acoustic wave propagation in stratified...

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LuAnne Thompson

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2022. Thompson, LuAnne (2000-03-15). "Ekman layers and two-dimensional frontogenesis in the upper ocean". Journal of Geophysical Research: Oceans. 105 (C3):...

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Eddy pumping

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2022-03-19. Thomas, Leif; Ferrari, Raffaele (2008-11-01). "Friction, Frontogenesis, and the Stratification of the Surface Mixed Layer". Journal of Physical...

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