A Single Doppler Radar Study of Horizontal-Roll Convection in a Lake-Effect Snow Storm
Open Access
- 1 July 1982
- journal article
- Published by American Meteorological Society in Journal of the Atmospheric Sciences
- Vol. 39 (7) , 1521-1531
- https://doi.org/10.1175/1520-0469(1982)039<1521:asdrso>2.0.co;2
Abstract
The boundary-layer structure and circulation over Lake Michigan were probed with a Doppler radar and an aircraft during a lake-effect snow storm on 9 December 1978. Evidence is presented that observed wind-parallel echo bands and satellite cloud bands resulted from horizontal-roll convection in the boundary layer. The organization of precipitation within the roll field is discussed, and the roll geometry is compared with cases of dry horizontal-roll convection reported in the literature. Abstract The boundary-layer structure and circulation over Lake Michigan were probed with a Doppler radar and an aircraft during a lake-effect snow storm on 9 December 1978. Evidence is presented that observed wind-parallel echo bands and satellite cloud bands resulted from horizontal-roll convection in the boundary layer. The organization of precipitation within the roll field is discussed, and the roll geometry is compared with cases of dry horizontal-roll convection reported in the literature.Keywords
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