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mesoscale convective complex
A 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 tornadoes.〔Maddox, R.A., 1980: Mesoscale convective complexes. Bulletin of the American Meteorological Society, Vol.61, 1374-1387.〕
==Size==
A mesoscale convective complex has either... 1: an area of cloud top of 100,000 km² or greater with temperature less than or equal to -32 °C, or 2: an area of cloud top of 50,000 km² with temperature less than or equal to -52 °C. Size definitions must be met for 6 hours or greater. Its maximum extent is defined as when cloud shield reaches maximum area. Its eccentricity (minor axis/major axis) is greater than or equal to 0.7 at maximum extent.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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