WARM UPPER-LEVEL DOWNDRAFTS ASSOCIATED WITH A SQUALL LINE

Authors
SUN J BRAUN S BIGGERSTAFF MI FOVELL RG HOUZE RA
Citation
J. Sun et al., WARM UPPER-LEVEL DOWNDRAFTS ASSOCIATED WITH A SQUALL LINE, Monthly weather review, 121(10), 1993, pp. 2919-2927
Citations number
39
Categorie Soggetti
Metereology & Atmospheric Sciences
Journal title
Monthly weather review → ACNP
ISSN journal
00270644
Volume
121
Issue
10
Year of publication
1993
Pages
2919 - 2927
Database
ISI
SICI code
0027-0644(1993)121:10<2919:WUDAWA>2.0.ZU;2-9
Abstract
Thermodynamic retrieval analysis applied to a composite of dual-Dopple r radar data obtained in the 10-11 June 1985 PRE-STORM (Preliminary Re gional Experiment for STORM-Central) squall line and a model simulatio n of a similar squall line show that the upper-level downdrafts locate d ahead of and behind the main convective updraft zone were generally positively buoyant. As a result, the upper-level downdrafts contribute d negatively to the system heat flux.