Effects of Tropospheric Vertical Wind Shear on Gravity Waves Generated by Tropical Cyclones
نویسندگان
چکیده
منابع مشابه
Shear-forced vertical circulations in tropical cyclones
[1] The forced secondary circulation (FSC) by the vertical shear of horizontal winds is isolated from the latent heating and friction FSCs associated with a model-simulated hurricane vortex. This is achieved by use of a newly developed potential vorticity inversion and quasi-balanced vertical motion equations system. Results show that latent heating forces intense updrafts in the eyewall and sl...
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Conventional and wavelet methods are combined to characterize gravity-waves (GWs) produced by two intense tropical cyclones (TCs) in the upper troposphere and lower stratosphere (UT/LS) from GPS winsonde data. Analyses reveal large contribution of GWs induced by TCs to wave energy densities in the UT/LS. An increase in total energy density of about 30% of the climatological energy density in au...
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Recent work has developed a new framework for the impact of vertical wind shear on the intensity evolution of tropical cyclones. A focus of this framework is on the frustration of the tropical cyclone’s power machine by shearinduced, persistent downdrafts that flush relatively cool and dry (lower equivalent potential temperature, θe) air into the storm’s inflow layer. These previous results hav...
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Vertical wind shear and storm motion are two of the most important factors contributing to rainfall asymmetries in tropical cyclones (TCs). Global TC rainfall structure, in terms of azimuthal distribution and asymmetries relative to storm motion, has been previously described using the Tropical Rainfall Measuring Mission Microwave Imager rainfall estimates. The mean TC rainfall distribution and...
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Article history: Received 30 August 2012 Received in revised form 29 January 2013 Accepted 25 February 2013 Available online xxxx
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ژورنال
عنوان ژورنال: Geophysical Research Letters
سال: 2019
ISSN: 0094-8276,1944-8007
DOI: 10.1029/2019gl082085