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Kinetic energy budget during strong jet stream activity over the eastern United StatesKinetic energy budgets are computed during a cold air outbreak in association with strong jet stream activity over the eastern United States. The period is characterized by large generation of kinetic energy due to cross-contour flow. Horizontal export and dissipation of energy to subgrid scales of motion constitute the important energy sinks. Rawinsonde data at 3 and 6 h intervals during a 36 h period are used in the analysis and reveal that energy fluctuations on a time scale of less than 12 h are generally small even though the overall energy balance does change considerably during the period in conjunction with an upper level trough which moves through the region. An error analysis of the energy budget terms suggests that this major change in the budget is not due to random errors in the input data but is caused by the changing synoptic situation. The study illustrates the need to consider the time and space scales of associated weather phenomena in interpreting energy budgets obtained through use of higher frequency data.
Document ID
19800041527
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Fuelberg, H. E.
(Saint Louis University St. Louis, Mo., United States)
Scoggins, J. R.
(Texas A & M University College Station, Tex., United States)
Date Acquired
August 10, 2013
Publication Date
January 1, 1980
Publication Information
Publication: Monthly Weather Review
Volume: 108
Subject Category
Meteorology And Climatology
Accession Number
80A25697
Funding Number(s)
CONTRACT_GRANT: NAS8-32838
CONTRACT_GRANT: NAS8-31773
Distribution Limits
Public
Copyright
Other

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