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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    International journal of infrared and millimeter waves 4 (1983), S. 375-400 
    ISSN: 1572-9559
    Keywords: convective storms ; gravity waves ; infrared imagery ; radar echoes ; rawinsonde data ; remote sensing ; satellite observation ; tornado
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The Elton, Louisiana tornado on March 24, 1976 has been studied using GOES digital infrared data for the growth and collapse of the cloud top, the temperature-height relationship and air mass instability from rawinsonde data, gravity waves from Doppler sounder records, and radar summaries from storm activity during the three-hour time period immediately preceding the touchdown of the tornado. In this case, the overshooting turret collapsed 30 minutes before the tornado touchdown as the eastward moving cloud reached Elton, Louisiana. Results show that the gravity waves were excited by the enhanced convection of the storm penetrating through the tropopause in the 2.5 hour time period before the tornado touched down.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    International journal of infrared and millimeter waves 3 (1982), S. 489-502 
    ISSN: 1572-9559
    Keywords: gravity waves ; infrared imagery ; overshooting clouds ; rawinsonde data ; remote sensing ; satellite observation ; severes storms
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract GOES digital infrared data during the time period between two hours before the touchdown of tornado and the tornado touchdown time were used in this study. Comparison between tornado-associated clouds and non-tornado-associated clouds indicates that the difference between overshooting cloud top temperature and the tropopause temperature, or how much the cloud has penetrated above the tropopause, rather than either the absolute temperature of penetrative cloud top or the height of the top of overshooting turret is significant for the possible formation of severe storms. The penetrative overshooting cloud top collapses about 15 to 30 minutes before the touchdown of tornado. Gravity waves were detected from the severe convective storms.
    Type of Medium: Electronic Resource
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