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Unbalanced Supergradient Flow: Its Role in Organizing Severe Turbulence in Both Convective and Clear Air Case StudiesThis viewgraph presentation provides information on the role of supergradient flow in organizing the severe turbulence in convective and clear air case studies. Diagrams of the structure of turbulence are presented, as well as conclusions which include: 1) jet streak entrance regions merge in the presence of curved flow; 2) deformation zone forms as momentum converges and centrifugal force increases; 3) cross-stream (z) vortices are produced in supergradient flow confluence zone; 4) MASS (Mesoscale Atmospheric Simulation System) perturbation (Moist Convection/Frontogenesis) Modifies Along-Flow PGF (Pressure Gradient Force); 5) (Y) vortex converges (Z) vorticity = hazard.
Document ID
20030020332
Acquisition Source
Glenn Research Center
Document Type
Presentation
Authors
Michael L Kaplan
(North Carolina State University Raleigh, United States)
Date Acquired
August 21, 2013
Publication Date
January 1, 2003
Publication Information
Publication: Proceedings of the Second NASA Aviation Safety Program Weather Accident Prevention Review
Publisher: National Aeronautics and Space Administration
Subject Category
Meteorology and Climatology
Report/Patent Number
NASA/CP-2003-210964
Meeting Information
Meeting: Second NASA Aviation Safety Program Weather Accident Prevention Review
Location: Independence, OH
Country: US
Start Date: June 5, 2001
End Date: June 7, 2001
Sponsors: National Aeronautics and Space Administration
Distribution Limits
Public
Copyright
Portions of document may include copyright protected material.
Technical Review
NASA Technical Management
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