Evolution and Morphology of Two Splitting Thunderstorms with Dominant Left-Moving Members
| Autor: | Rodger A. Brown, Rebecca J. Meitín |
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| Rok vydání: | 1994 |
| Předmět: | |
| Zdroj: | Monthly Weather Review. 122:2052-2067 |
| ISSN: | 1520-0493 0027-0644 |
| DOI: | 10.1175/1520-0493(1994)122<2052:eamots>2.0.co;2 |
| Popis: | During the late afternoon and early evening of 27 June 1989. Three splitting thunderstorms formed over Standing Rock Indian Reservation in the southern portion of the North Dakota Thunderstorm Project area. The first two storms are the subject of this study. The entire life cycles of both storms were documented using a single ground-based Doppler radar. Radar reflectivity signatures of updraft summits and Doppler velocity signatures of divergence near storm top were used to deduce updraft evolution within the storms. Dual-Doppler radar observations from a ground-based radar and an airborne Doppler radar provided fragmentary documentation of the storms’ life cycles. The splitting storms on that day were unusual in two distinct ways: (a) the left members of the splitting storms were the dominant and longer-lasting ones, and (b) none of the deduced updrafts were collocated with centers of vorticity signatures that would have indicated updraft rotation. Both of the left-moving storms had 10 sequentia... |
| Databáze: | OpenAIRE |
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