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Energy analysis of convectively induced wind perturbationsBudgets of divergent and rotational components of kinetic energy (KD and KR) are examined for four upper level wind speed maxima that develop during the fourth Atmospheric Variability Experiment (AVE IV) and the first AVE-Severe Environmental Storms and Mesoscale Experiment (AVE-SESAME I). A similar budget analysis is performed for a low-level jet stream during AVE-SESAME I. The energetics of the four upper level speed maxima is found to have several similarities. The dominant source of KD is cross-contour flow by the divergent wind, and KD provides a major source of KR via a conversion process. Conversion from available potential energy provides an additional source of KR in three of the cases. Horizontal maps reveal that the conversions involving KD are maximized in regions poleward of the convection. Low-level jet development during AVE-SESAME I appears to be assisted by convective activity to the west.
Document ID
19890051268
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Fuelberg, Henry E.
(Florida State University Tallahassee, United States)
Buechler, Dennis E.
(NASA Marshall Space Flight Center Huntsville, AL; Saint Louis University, MO, United States)
Date Acquired
August 14, 2013
Publication Date
April 1, 1989
Publication Information
Publication: Monthly Weather Review
Volume: 117
ISSN: 0027-0644
Subject Category
Meteorology And Climatology
Accession Number
89A38639
Funding Number(s)
CONTRACT_GRANT: NSF ATM-82-00456
CONTRACT_GRANT: NAG8-653
Distribution Limits
Public
Copyright
Other

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