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Information about Mesoscale Meteorology

Mesoscale Meteorology is the study of weather systems smaller than synoptic scale systems but larger than microscale and storm-scale cumulus systems. Horizontal dimensions generally range from around 5 miles to several hundred miles. Examples of mesoscale weather systems are sea breezes, squall lines, and mesoscale convective complexes.

Vertical velocity often equals or exceeds horizontal velocities in mesoscale meteorological systems due to nonhydrostatic processes.

Subclasses

Mesoscale Meteorology is divided into these subclasses (Orlanski, 1975):
  • Meso-gamma 2-20 km, deals with phenomena like thunderstorm convection, complex terrain flows (at the edge to microscale, also known as storm-scale)
  • Meso-beta 20-200 km deals with phenomena like sea breezes, lake effect snow storms
  • Meso-alpha 200-2000 km fronts, deals with phenomena like squall lines, mesoscale convective systems (MCS), tropical cyclones at the edge of synoptic scale

Mesoscale boundaries

As in synoptic frontal analysis, literature about mesoscale analysis uses cold, warm, and occluded fronts on the mesoscale to help describe phenomena. On weather maps mesoscale fronts are depicted as smaller and with twice as many bumps or spikes as the synoptic variety. In the United States, opposition to the use of the mesoscale versions of fronts on weather analyses, has led to the use of an overarching symbol (a trough symbol) with a label of outflow boundary as the frontal notation.[1]

See also

References

World Wide Web

1. ^ David Roth. Hydrometeorological Prediction Center. Unified Surface Analysis Manual. Retrieved on 2006-10-24.

Books and Publications

Orlanski, I., 1975: A rational subdivision of scales for atmospheric processes. Bulletin of the American Meteorological Society, 56(5), 527-530.

Fujita, T. T., 1986. Mesoscale classifications: their history and their application to forecasting, in Ray, P. S., ed., Mesoscale Meteorology and Forecasting: American Meteorological Society, Boston, p. 18-35. [presented 1984; published 1986]

External links

weather is the set of all extant phenomena in a given atmosphere at a given time. The term usually refers to the activity of these phenomena over short periods (hours or days), as opposed to the term climate, which refers to the average atmospheric conditions over longer periods of
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The synoptic scale in meteorology (also known as large scale or cyclonic scale) is a horizontal length scale of the order of 1000 kilometres (about 620 miles) or more [1]. This corresponds to a horizontal scale typical of mid-latitude depressions.
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Microscale meteorology is the study of atmospheric phenomena smaller than mesoscale, about 1 km or less. These two branches of meteorology are sometimes grouped together as "mesoscale and microscale meteorology" (MMM) and together study all phenomena smaller than synoptic scale;
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Storm-scale is a scale of sizes of weather systems on the order of individual thunderstorms.

See also

  • Synoptic scale
  • Mesoscale
  • Microscale

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1 mile =
SI units
0 m 0 km
US customary / Imperial units
0 ft 0 yd
“Miles” redirects here. For other uses, see Miles (disambiguation).

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Sea Breeze may mean:
  • Sea breeze, a wind from the sea that develops over land near coasts
  • SS Sea Breeze (1958–2000), a former cruise ship of Panamanian registry
  • Sea Breeze (brand), a personal care products brand

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A squall line is a line of severe thunderstorms that can form along or ahead of a cold front. In the early 20th century, the term was used as a synonym for cold front. It contains heavy precipitation, hail, frequent lightning, strong straight line winds, and possibly tornadoes and
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mesoscale convective complex (MCC) is a unique kind of Mesoscale Convective System which is defined by characteristics observed in infrared satellite imagery. They are long-lived, nocturnal in formation and commonly contain heavy rainfall, wind, hail, lightning and possibly
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Microscale meteorology is the study of atmospheric phenomena smaller than mesoscale, about 1 km or less. These two branches of meteorology are sometimes grouped together as "mesoscale and microscale meteorology" (MMM) and together study all phenomena smaller than synoptic scale;
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Storm-scale is a scale of sizes of weather systems on the order of individual thunderstorms.

See also

  • Synoptic scale
  • Mesoscale
  • Microscale

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The synoptic scale in meteorology (also known as large scale or cyclonic scale) is a horizontal length scale of the order of 1000 kilometres (about 620 miles) or more [1]. This corresponds to a horizontal scale typical of mid-latitude depressions.
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surface weather analysis is a special type of weather map which 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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Motto
"In God We Trust"   (since 1956)
"E Pluribus Unum"   ("From Many, One"; Latin, traditional)
Anthem
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Spatial scale provides a "shorthand" form for discussing relative lengths, areas, distances and sizes. A microclimate, for instance, is one which might occur in a mountain valley or near a lakeshore, whereas a megatrend is one which involves the whole planet.
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surface weather analysis is a special type of weather map which 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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