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Cloud top height variability of strong convective cellsCloud top height variability of cloud domes above the cirrostratus anvil was investigated for two severe local storm occurrences over Texas on May 12 and 13, 1972. Twenty-three domes were monitored and the average maximum height was 1.6 km above the anvil. It was estimated that a dome would take a maximum of about 6 min to grow from the anvil level to peak altitude based on measurements over the last 2 min of the growth period when the upward vertical velocity averaged 4 m/sec. The extreme vertical growth rate was 27 m/sec for a 30-sec period. This vertical growth rate compared with a range of 11.4-19.4 m sec determined from a method of estimating vertical motions based on laboratory measurements. Average dome collapse was at the same rate as the average ascent for the first 90 sec after the maximum altitude was reached.
Document ID
19750032669
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Shenk, W. E.
(NASA Goddard Space Flight Center Greenbelt, Md., United States)
Date Acquired
August 8, 2013
Publication Date
December 1, 1974
Publication Information
Publication: Journal of Applied Meteorology
Volume: 13
Subject Category
Meteorology And Climatology
Accession Number
75A16741
Distribution Limits
Public
Copyright
Other

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