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The role of diabatic heating in maintaining the upper-tropospheric baroclinic zone in the South PacificThe four-dimensional structure of a region that encompasses the South Pacific Convergence Zone (SPCZ) is presently examined using a modified set of FGGE level III-b analyses, during the January 10-18, 1979 period when two cyclones formed in the tropics and propagated southeastward along the SPCZ to middle latitudes. An effort is made to ascertain the significance of kinematic and thermodynamic processes in maintaining the the upper baroclinic region coincident with the subtropical jet. A partitioned form of the frontogenetical function, used to diagnose the adiabatic and diabatic contributions to the maintenance of baroclinicity in the SPCZ's vicinity, indicates a major balance between the frontogenetical contribution by differential diabatic heating and the opposing diabatic tilting processes.
Document ID
19900029082
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Robertson, Franklin R.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Vincent, Dayton G.
(Purdue University West Lafayette, IN, United States)
Kann, Deirdre M.
(National Meteorological Center Camp Springs, MD, United States)
Date Acquired
August 14, 2013
Publication Date
October 1, 1989
Publication Information
Publication: Royal Meteorological Society, Quarterly Journal
Volume: 115
ISSN: 0035-9009
Subject Category
Meteorology And Climatology
Accession Number
90A16137
Funding Number(s)
CONTRACT_GRANT: NSF ATM-84-05748
CONTRACT_GRANT: NAS8-35187
CONTRACT_GRANT: NAS8-37127
Distribution Limits
Public
Copyright
Other

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