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Norwegian cyclone model

Index Norwegian cyclone model

The older of the models of extratropical cyclone development is known as the Norwegian cyclone model, developed during and shortly after World War I within the Bergen School of Meteorology. [1]

24 relations: Air mass, Barotropic fluid, Bergen School of Meteorology, Cloud, Cold front, Cold-core low, Convergence zone, Cyclone, Extratropical cyclone, Jacob Bjerknes, Low-pressure area, Norway, Occluded front, Precipitation, Rain, Snow, Squall line, Stratus cloud, Surface weather analysis, Surface weather observation, Warm front, Weather front, Westerlies, World War I.

Air mass

In meteorology, an air mass is a volume of air defined by its temperature and water vapor content.

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Barotropic fluid

In fluid dynamics, a barotropic fluid is a fluid whose density is a function of pressure only.

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Bergen School of Meteorology

The "Bergen School of Meteorology" is a school of thought which is the basis for much of modern weather forecasting.

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Cloud

In meteorology, a cloud is an aerosol consisting of a visible mass of minute liquid droplets, frozen crystals, or other particles suspended in the atmosphere of a planetary body.

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Cold front

A cold front is the leading edge of a cooler mass of air, replacing at ground level a warmer mass of air, which lies within a fairly sharp surface trough of low pressure.

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Cold-core low

A cold-core low, also known as an upper level low or cold-core cyclone, is a cyclone aloft which has an associated cold pool of air residing at high altitude within the Earth's troposphere.

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Convergence zone

A convergence zone in meteorology is a region in the atmosphere where two prevailing flows meet and interact, usually resulting in distinctive weather conditions.

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Cyclone

In meteorology, a cyclone is a large scale air mass that rotates around a strong center of low atmospheric pressure.

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Extratropical cyclone

Extratropical cyclones, sometimes called mid-latitude cyclones or wave cyclones, are low-pressure areas which, along with the anticyclones of high-pressure areas, drive the weather over much of the Earth.

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Jacob Bjerknes

Jacob Aall Bonnevie Bjerknes (in English; November 2, 1897 – July 7, 1975) was a meteorologist.

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Low-pressure area

A low-pressure area, low, or depression, is a region on the topographic map where the atmospheric pressure is lower than that of surrounding locations.

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Norway

Norway (Norwegian: (Bokmål) or (Nynorsk); Norga), officially the Kingdom of Norway, is a unitary sovereign state whose territory comprises the western portion of the Scandinavian Peninsula plus the remote island of Jan Mayen and the archipelago of Svalbard.

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Occluded front

In meteorology, an occluded front is a weather front formed during the process of cyclogenesis when a cold front overtakes a warm front.

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Precipitation

In meteorology, precipitation is any product of the condensation of atmospheric water vapor that falls under gravity.

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Rain

Rain is liquid water in the form of droplets that have condensed from atmospheric water vapor and then becomes heavy enough to fall under gravity.

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Snow

Snow refers to forms of ice crystals that precipitate from the atmosphere (usually from clouds) and undergo changes on the Earth's surface.

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Squall line

A squall line (also known as a quasi-linear convective system or QLCS) is a line of thunderstorms forming along or ahead of a cold front.

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Stratus cloud

Stratus clouds are low-level clouds characterized by horizontal layering with a uniform base, as opposed to convective or cumuliform clouds that are formed by rising thermals.

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Surface weather analysis

Surface weather analysis is a special type of weather map that provides a view of weather elements over a geographical area at a specified time based on information from ground-based weather stations.

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Surface weather observation

Surface weather observations are the fundamental data used for safety as well as climatological reasons to forecast weather and issue warnings worldwide.

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Warm front

A warm front is a density discontinuity located at the leading edge of a homogeneous warm air mass, and is typically located on the equator-facing edge of an isotherm gradient.

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Weather front

A weather front is a boundary separating two masses of air of different densities, and is the principal cause of meteorological phenomena outside the tropics.

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Westerlies

The westerlies, anti-trades, or prevailing westerlies, are prevailing winds from the west toward the east in the middle latitudes between 30 and 60 degrees latitude.

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World War I

World War I (often abbreviated as WWI or WW1), also known as the First World War, the Great War, or the War to End All Wars, was a global war originating in Europe that lasted from 28 July 1914 to 11 November 1918.

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Redirects here:

Norwegian model.

References

[1] https://en.wikipedia.org/wiki/Norwegian_cyclone_model

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