Radar, satellite, and lightning characteristics of select mesoscale convective systems in Texas /
(> 35 dBZ) in the mixed phase region (O'C < T > -20'C).
| Main Author: | |
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| Format: | Thesis eBook |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
1995.
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| Subjects: | |
| Online Access: | Link to OAKTrust copy |
| Summary: | (> 35 dBZ) in the mixed phase region (O'C < T > -20'C). associated with convective cores than MCSs at later stages of brightness temperatures from the Special Sensor Coast. Vertical profiles of radar reflectivity (VPRR) as constructed to characterize the structure and relative convective cores having small reflectivity lapse rates in the counts and higher percentages of negative lightning (> 80%) data indicate that the presence of large ice particles aloft depressions. eight mesoscale convective systems (MCSs) which occur at examined in this study. The results using radar and 85 GHz flashes are located near high reflectivity convective cores Growing or mature MCSs typically had larger negative flash height) in mixed phase region than the cores in the remaining high positive flash densities associated with high ice particles aloft. Positive CG flashes were mostly located in low reflectivity (< 30 dBZ near the -10C level) is the common linkage between MCSs with lightning, with high Microwave/Imager to lightning data for the same set of MCSs mixed phase region is consistent with the presence of large more electrically active MCSs were characterized by smaller radar reflectivity aloft, and large 85 GHz temperature reflectivity cores (45 - 55 dBZ) in the lowest 2 to 3 km, the reflectivity cores. Devlin et al. (1995) compare 85 GHz reflectivity lapse rates (decrease of reflectivity with similar profiles from tropical oceanic MCSs. The data show stratiform regions, independent of MCS life cycle stage or strength of each MCS. The VPRR are also compared with systems. Based on existing theories of charge separation, that in all cases the majority of negative CG lightning the observation of high negative flash counts coincident with their life cycle. Comparison of the median VPRR for the This study compares radar data from the League City, Texas various MCSs showed that although each case had high various stages of development along the upper Texas Gulf VPRR type. Several cases with reports of large hail also had well as plan views and vertical cross sections are WSR-88D and cloud-to-ground (CG) lightning data for a set of |
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| Item Description: | "Major subject: Meteorology". Vita. |
| Physical Description: | x, 70 leaves : illustrations ; 28 cm. Also available online. Issued also on microfiche from Lange Micrographics. |
| Bibliography: | Includes bibliographical references. |