NDLI: Impact of vertical wind shear on tropical cyclone rainfall

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Impact of vertical wind shear on tropical cyclone rainfall

Content Provider	NASA Technical Reports Server (NTRS)
Author	Marchok, Tim Cecil, Dan
Copyright Year	2014
Description	While tropical cyclone rainfall has a large axisymmetric component, previous observational and theoretical studies have shown that environmental vertical wind shear leads to an asymmetric component of the vertical motion and precipitation fields. Composites consistently depict a precipitation enhancement downshear and also cyclonically downwind from the downshear direction. For consistence with much of the literature and with Northern Hemisphere observations, this is subsequently referred to as "Downshear-Left". Stronger shear magnitudes are associated with greater amplitude precipitation asymmetries. Recent work has reinforced the prior findings, and explored details of the response of the precipitation and kinematic fields to environmental vertical wind shear. Much of this research has focused on tropical cyclones away from land, to limit the influence of other processes that might distort the signal related to vertical wind shear. Recent evidence does suggest vertical wind shear can also play a major role in precipitation asymmetries during and after landfall.
File Size	353337
Page Count	6
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20150002572
Archival Resource Key	ark:/13960/t9k40sp88
Language	English
Publisher Date	2014-12-02
Access Restriction	Open
Subject Keyword	Meteorology And Climatology Meteorological Radar Tropical Storms Impact Prediction Precipitation Meteorology Wind Direction Vertical Air Currents Asymmetry China Taiwan Hydrometeors Cyclones Downbursts Wind Shear Reflectance Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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