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Case study of a low-reflectivity pulsating microburst - Numerical simulation of the Denver, 8 July 1989, stormResults from a 3D simulation of a very strong microburst, detected by the Low-Level Windshear Alert System, are presented. The simulation was performed using the Terminal Area Simulation System (TASS) model (Proctor, 1987) which is a 3D nonhydrostatic cloud model that includes parameterizations for both liquid and ice-phase microphysics. Emphasis is placed om the pulsating characteristic and the very-low radar reflectivity of the event. The simulation revealed that the dissipating cloud induces a type-1 pulsating microburst event, with at least three distinct microburst pulses over a period of 20 min.
Document ID
19940034220
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Proctor, Fred H.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 16, 2013
Publication Date
October 1, 1993
Subject Category
Meteorology And Climatology
Meeting Information
Meeting: AMS, Conference on Severe Local Storms
Location: Saint Louis, MO
Country: United States
Start Date: October 4, 1993
End Date: October 8, 1993
Sponsors: AMS
Accession Number
94A10875
Distribution Limits
Public
Copyright
Other

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