Observations of Convective Thermals with Weather RadarSource: Journal of Atmospheric and Oceanic Technology:;2017:;volume( 034 ):;issue: 007::page 1585Author:Melnikov, Valery;Zrnić, Dusan S.
DOI: 10.1175/JTECH-D-17-0068.1Publisher: American Meteorological Society
Abstract: AbstractIt is shown that the NEXRAD weather radar with enhanced detectability is capable of observing the evolution of convective thermals. The fields of radar differential reflectivity show that the upper parts of the thermals are observable due to Bragg scatter, whereas scattering from insects dominates in the lower parts. The thermal-top rise rate is between 1.5 and 3.7 m s?1 in the analyzed case. Radar observations of thermals also enable estimations of their maximum heights, horizontal sizes, and the turbulent dissipation rate within each thermal. These attributes characterize the intensity of convection.
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| contributor author | Melnikov, Valery;Zrnić, Dusan S. | |
| date accessioned | 2018-01-03T11:00:00Z | |
| date available | 2018-01-03T11:00:00Z | |
| date copyright | 5/24/2017 12:00:00 AM | |
| date issued | 2017 | |
| identifier other | jtech-d-17-0068.1.pdf | |
| identifier uri | http://138.201.223.254:8080/yetl1/handle/yetl/4245857 | |
| description abstract | AbstractIt is shown that the NEXRAD weather radar with enhanced detectability is capable of observing the evolution of convective thermals. The fields of radar differential reflectivity show that the upper parts of the thermals are observable due to Bragg scatter, whereas scattering from insects dominates in the lower parts. The thermal-top rise rate is between 1.5 and 3.7 m s?1 in the analyzed case. Radar observations of thermals also enable estimations of their maximum heights, horizontal sizes, and the turbulent dissipation rate within each thermal. These attributes characterize the intensity of convection. | |
| publisher | American Meteorological Society | |
| title | Observations of Convective Thermals with Weather Radar | |
| type | Journal Paper | |
| journal volume | 34 | |
| journal issue | 7 | |
| journal title | Journal of Atmospheric and Oceanic Technology | |
| identifier doi | 10.1175/JTECH-D-17-0068.1 | |
| journal fristpage | 1585 | |
| journal lastpage | 1590 | |
| tree | Journal of Atmospheric and Oceanic Technology:;2017:;volume( 034 ):;issue: 007 | |
| contenttype | Fulltext |