Doppler velocity signatures of idealized elliptical vortices

AMS Citation:
Lee, W. -chau, P. R. Harasti, M. Bell, B. Jong-Dao, and M. -H. Chang, 2006: Doppler velocity signatures of idealized elliptical vortices. Terrestrial, Atmospheric and Oceanic Sciences, 17, 429-446,.
Date:2006-06-01
Resource Type:article
Title:Doppler velocity signatures of idealized elliptical vortices
Abstract: Doppler radar observations have revealed a class of atmospheric vortices (tropical cyclones, tornadoes, dust devils) that possess elliptical radar reflectivity signatures. One famous example is Typhoon Herb (1996) that maintained its elliptical reflectivity structure over a 40-hour period. Theoretical work and dual-Doppler analyses of observed tropical cyclones have suggested two physical mechanisms that can explain the formation of two types of elliptical vortices observed in nature, namely, the combination of a circular vortex with either a wavenumber two vortex Rossby wave or a deformation field. The characteristics of these two types of elliptical vortices and their corresponding Doppler velocity signatures have not been previously examined.
Peer Review:Refereed
Copyright Information:Copyright 2006 Chinese Geoscience Union.
OpenSky citable URL: ark:/85065/d7td9z15
Author(s):
  • Wen-chau Lee - NCAR/UCAR
  • Paul Harasti
  • Michael Bell - NCAR/UCAR
  • Ben Jong-Dao
  • Mou-Hsiang Chang - NCAR/UCAR
  • Random Profile

    PROJ SCIENTIST II

    Recent & Upcoming Visitors