A PROPOSED MECHANISM FOR CUMULONIMBUS PERSISTENCE IN THE PRESENCE OF STRONG VERTICAL SHEARSource: Monthly Weather Review:;1969:;volume( 097 ):;issue: 008::page 590Author:ALBERTY, RONNIE L.
DOI: 10.1175/1520-0493(1969)097<0590:APMFCP>2.3.CO;2Publisher: American Meteorological Society
Abstract: Based on observations that vigorous convective elements in the atmosphere act as obstacles to the environmental flow, it is shown that hydrodynamic pressures exist near the strong updraft. After utilizing this result, a simple model of a quasi-steady-state cumulonimbus is proposed. It is then found that vertical shear in unidirectional environmental flow leads to enhanced vertical motions on the perimeter of the updraft. These intensified vertical motions would allow the updraft to be less adversely affected by the shearing forces and may explain the persistence or growth of such storms.
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| contributor author | ALBERTY, RONNIE L. | |
| date accessioned | 2017-06-09T15:59:06Z | |
| date available | 2017-06-09T15:59:06Z | |
| date copyright | 1969/08/01 | |
| date issued | 1969 | |
| identifier issn | 0027-0644 | |
| identifier other | ams-58111.pdf | |
| identifier uri | http://onlinelibrary.yabesh.ir/handle/yetl/4198522 | |
| description abstract | Based on observations that vigorous convective elements in the atmosphere act as obstacles to the environmental flow, it is shown that hydrodynamic pressures exist near the strong updraft. After utilizing this result, a simple model of a quasi-steady-state cumulonimbus is proposed. It is then found that vertical shear in unidirectional environmental flow leads to enhanced vertical motions on the perimeter of the updraft. These intensified vertical motions would allow the updraft to be less adversely affected by the shearing forces and may explain the persistence or growth of such storms. | |
| publisher | American Meteorological Society | |
| title | A PROPOSED MECHANISM FOR CUMULONIMBUS PERSISTENCE IN THE PRESENCE OF STRONG VERTICAL SHEAR | |
| type | Journal Paper | |
| journal volume | 97 | |
| journal issue | 8 | |
| journal title | Monthly Weather Review | |
| identifier doi | 10.1175/1520-0493(1969)097<0590:APMFCP>2.3.CO;2 | |
| journal fristpage | 590 | |
| journal lastpage | 596 | |
| tree | Monthly Weather Review:;1969:;volume( 097 ):;issue: 008 | |
| contenttype | Fulltext |