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contributor authorMiller, Madison L.
contributor authorLakshmanan, Valliappa
contributor authorSmith, Travis M.
date accessioned2017-06-09T17:36:05Z
date available2017-06-09T17:36:05Z
date copyright2013/06/01
date issued2012
identifier issn0882-8156
identifier otherams-87877.pdf
identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4231594
description abstracthe location and intensity of mesocyclone circulations can be tracked in real time by accumulating azimuthal shear values over time at every location of a uniform spatial grid. Azimuthal shear at low (0?3 km AGL) and midlevels (3?6 km AGL) of the atmosphere is computed in a noise-tolerant manner by fitting the Doppler velocity observations in the neighborhood of a pulse volume to a plane and finding the slope of that plane. Rotation tracks created in this manner are contaminated by nonmeteorological signatures caused by poor velocity dealiasing, ground clutter, radar test patterns, and spurious shear values. To improve the quality of these fields for real-time use and for an accumulated multiyear climatology, new dealiasing strategies, data thresholding, and multiple hypothesis tracking (MHT) techniques have been implemented. These techniques remove nearly all nonmeteorological contaminants, resulting in much clearer rotation tracks that appear to match mesocyclone paths and intensities closely.
publisherAmerican Meteorological Society
titleAn Automated Method for Depicting Mesocyclone Paths and Intensities
typeJournal Paper
journal volume28
journal issue3
journal titleWeather and Forecasting
identifier doi10.1175/WAF-D-12-00065.1
journal fristpage570
journal lastpage585
treeWeather and Forecasting:;2012:;volume( 028 ):;issue: 003
contenttypeFulltext


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