Synoptic and Mesoscale Dynamics of Snowbands in Winter Cyclones

The key findings related to the narrow bands are: (1) The simulated embedded narrow bands were oriented vertically upright, their widths and evolution characteristics similar to radar observations; (2) Conditional symmetric instability did not contribute to the formation of the narrow bands, rather, the release of potential instability at the interface of the dry slot and the trowal led to the development of upright convection and initiated the narrow bands. As the initial precipitation moved northward and progressed into the mid-level deformation zone associated with the trowal and warm frontal zone, they were stretched into elongated narrow bands particularly along the strongest and narrow deformation regions; (3) As bands propagated across the trowal, new bands developed at the interface of the dry slot and trowal forming the multi-banded structure.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Atmospheric Sciences

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2015

Author dc:creator

• Han, Mei

Contributors dc:contributor

• Mohan Ramamurthy

• Physics, Atmospheric Science

Language dc:language

eng

Identifier

(MiAaPQ)AAI3160891

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/85965