Mesoscale structures along wind-parallel bands in lake-effect snows

Research output: Contribution to conferencePaper

Abstract

Convection along wind-parallel bands of higher reflectivity was examined on four cases in lake-effect snow storms over southern Lake Michigan using data collected during the 1983/84 field operations of The University of Chicago lake snow project. This convection was superimposed on wind parallel bands resulting from longitudinal rolls. Two scales of convection along the rolls were evident from the radar reflectivity patterns: Km-scale core regions and 100-m scale cores. The core regions had long lifetimes relative to the estimated convective overturn times, but the lifetimes of the smaller-scale convection is not known. A relatively simple method of quantifying how much the roll flows are modified by the core regions was outlined. Preliminary results revealed that the rolls contributed less than half of the total mass flux due to km-scale convective eddies. The mass flux due to convection along the rolls tended to be higher in the roll updraft zones (U-zones) than in the roll downdraft zones (D-zones). However, the mass flux due to the rolls was on average about the same in the U-zones and D-zones.

Original languageEnglish (US)
Pages288-290
Number of pages3
StatePublished - Jan 1 1993
Event26th International Conference on Radar Meteorology - Norman, OK, USA
Duration: May 24 1993May 28 1993

Other

Other26th International Conference on Radar Meteorology
CityNorman, OK, USA
Period5/24/935/28/93

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Snow
Lakes
Mass transfer
Radar
Convection

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Kristovich, D. A. R. (1993). Mesoscale structures along wind-parallel bands in lake-effect snows. 288-290. Paper presented at 26th International Conference on Radar Meteorology, Norman, OK, USA, .

Mesoscale structures along wind-parallel bands in lake-effect snows. / Kristovich, David A.R.

1993. 288-290 Paper presented at 26th International Conference on Radar Meteorology, Norman, OK, USA, .

Research output: Contribution to conferencePaper

Kristovich, DAR 1993, 'Mesoscale structures along wind-parallel bands in lake-effect snows', Paper presented at 26th International Conference on Radar Meteorology, Norman, OK, USA, 5/24/93 - 5/28/93 pp. 288-290.
Kristovich DAR. Mesoscale structures along wind-parallel bands in lake-effect snows. 1993. Paper presented at 26th International Conference on Radar Meteorology, Norman, OK, USA, .
Kristovich, David A.R. / Mesoscale structures along wind-parallel bands in lake-effect snows. Paper presented at 26th International Conference on Radar Meteorology, Norman, OK, USA, .3 p.
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