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oai:www.ideals.illinois.edu:2142/85963 2023-07-11 col_2142_5131 col_2142_14839 com_2142_5130 com_2142_14838 com_2142_13459 com_2142_8903

Wilhelmson, Robert B. Houston, Adam Lopian 2015-09-28T14:52:19Z 2015-09-28T14:52:19Z 10000-01-01 2004 2004 In the second phase of this research, numerical experiments were used to examine the open issues that emerged from the observational analysis. Simulations were conducted using an idealized cloud model with a horizontally heterogeneous initialization that included the dominant preexisting airmass boundaries of the 27 May 1997 event. With a localized initialization and no preexisting boundaries, the simulated storm was short-lived and therefore consistent with the high-CAPE, low-shear archetype. When both the dryline and cold front were included in the initialization, the overall behavior of the simulated storm complex and boundaries closely resembled the early stages of the 27 May 1997 event. The quasi-continuous maintenance/propagation of the simulated storm was found to be controlled by the cold front. Moreover, strong, temporally coherent near-surface vertical vorticity required the horizontal shear associated with either preexisting boundary. Made available in DSpace on 2015-09-28T14:52:19Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 3153317.pdf: 16855520 bytes, checksum: e8ea33746f95f2403d2f4b0a0f0854bb (MD5) Previous issue date: 2004 Embargo set by: Seth Robbins for item 87244 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs U of I Only 263 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2004. http://hdl.handle.net/2142/85963 (MiAaPQ)AAI3153317 eng Computer Science The Role of Preexisting Airmass Boundaries in the Maintenance and Rotation of Deep Convection in a High -Cape, Low -Shear Environment text Atmospheric Sciences Atmospheric Sciences University of Illinois at Urbana-Champaign Dissertation Ph.D.