العربية
中国
Français
Deutsch
Ελληνική
हिन्दी
Italiano
日本語
Português
Русский
EspañolMESOSCALE 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.
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
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]
★ Scale (spatial)
★ Surface weather analysis
1. David Roth. Hydrometeorological Prediction Center. Unified Surface Analysis Manual. Retrieved on 2006-10-24.
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]
★ http://meted.ucar.edu/mesoprim/mesodefn/print.htm
Vertical velocity often equals or exceeds horizontal velocities in mesoscale meteorological systems due to nonhydrostatic processes.
| Contents |
| Subclasses |
| Mesoscale boundaries |
| See also |
| References |
| World Wide Web |
| Books and Publications |
| External links |
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
★ Scale (spatial)
★ Surface weather analysis
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
★ http://meted.ucar.edu/mesoprim/mesodefn/print.htm
This article provided by Wikipedia. To edit the contents of this article, click here for original source.
psst.. try this: add to faves
