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Explosive east coast cyclogenesis over the west-central North Atlantic Ocean - A composite study derived from ECMWF operational analysesThis paper describes the observational aspects of explosive east-coast cyclogenesis using composites constructed from the daily global analyses generated and archived by ECMWF. An explosively deepening storm or bomb is defined as an extratropical cyclone whose mean sea-level pressure falls at least 1 mb/h for 24 h. The ECMWF data sets are used to examine the three-dimensional kinematic and thermodynamic structure of bombs over the entire depth of the troposphere. The evolution and structure of the composite bomb is diagnosed using a moving coordinate system consisting of a box with dimensions of 35 x 35 deg of latitude-longitude. The results reveal that explosive cyclogenesis is a baroclinic phenomenon in which the rapid development in the presence of strong upper tropospheric forcing is most likely enhanced by a highly destabilized lower troposphere.
Document ID
19900026905
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Manobianco, John
(NASA Goddard Space Flight Center; Research and Data Systems, Inc. Greenbelt, MD, United States)
Date Acquired
August 14, 2013
Publication Date
November 1, 1989
Publication Information
Publication: Monthly Weather Review
Volume: 117
ISSN: 0027-0644
Subject Category
Meteorology And Climatology
Accession Number
90A13960
Funding Number(s)
CONTRACT_GRANT: NOAA-NA-87AADAC038
CONTRACT_GRANT: NSF ATM-83-04809
Distribution Limits
Public
Copyright
Other

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