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Two Distinct Regimes in the Kinematic and Thermodynamic Structure of the Hurricane Eye and Eyewall
Publisher: American Meteorological Society
Abstract: Using aircraft flight-level data, the present work demonstrates that the kinematic and thermodynamic distributions within the eye and eyewall of strong hurricanes are observed to evolve between two distinct regimes. In the ...
Miniature Supercells in an Offshore Outer Rainband of Hurricane Ivan (2004)
Publisher: American Meteorological Society
Abstract: Airborne Doppler radar observations are used to document the structure of three miniature supercells embedded in an outer rainband of Hurricane Ivan on 15 September 2004. The cells were located more than 100 km offshore, ...
Rapidly Intensifying Hurricane Guillermo (1997). Part II: Resilience in Shear
Publisher: American Meteorological Society
Abstract: his paper examines the structure and evolution of a mature tropical cyclone in vertical wind shear (VWS) using airborne Doppler radar observations of Hurricane Guillermo (1997). In Part I, the modulation of eyewall convection ...
A 6-Yr Climatology of Vertical Mean and Shear Components of Kinetic Energy for the Australian–South Pacific Jet Stream
Publisher: American Meteorological Society
Abstract: The climatology of the kinetic energy associated with the subtropical jet over the Australian?South Pacific region is investigated for a 6-yr period, January 1985?December 1990, using monthly mean data. The total kinetic ...
Buoyancy of Convective Vertical Motions in the Inner Core of Intense Hurricanes. Part II: Case Studies
Publisher: American Meteorological Society
Abstract: This is the second of two papers on the buoyancy of convective vertical motions in the inner core of intense hurricanes. This paper uses extensive airborne radar, dropwindsonde, and flight-level observations in Hurricanes ...
Flight-Level Thermodynamic Instrument Wetting Errors in Hurricanes. Part I: Observations
Publisher: American Meteorological Society
Abstract: Flight-level thermodynamic errors caused by the wetting of temperature and moisture sensors immersed within the airstream are studied using data from 666 radial legs collected in 31 hurricanes at pressure levels ranging ...
Buoyancy of Convective Vertical Motions in the Inner Core of Intense Hurricanes. Part I: General Statistics
Publisher: American Meteorological Society
Abstract: The buoyancy of hurricane convective vertical motions is studied using aircraft data from 175 radial legs collected in 14 intense hurricanes at four altitudes ranging from 1.5 to 5.5 km. The data of each leg are initially ...
Structural and Intensity Changes of Hurricane Bret (1999). Part I: Environmental Influences
Publisher: American Meteorological Society
Abstract: Hurricane Bret underwent a rapid intensification (RI) and subsequent weakening between 1200 UTC 21 August and 1200 UTC 22 August 1999 before it made landfall on the Texas coast 12 h later. Its minimum sea level pressure ...
Rapidly Intensifying Hurricane Guillermo (1997). Part I: Low-Wavenumber Structure and Evolution
Publisher: American Meteorological Society
Abstract: The structure and evolution of rapidly intensifying Hurricane Guillermo (1997) is examined using airborne Doppler radar observations. In this first part, the low-azimuthal-wavenumber component of the vortex is presented. ...
Environmental Ingredients for Supercells and Tornadoes within Hurricane Ivan
Publisher: American Meteorological Society
Abstract: Hurricane Ivan (2004) was a prolific producer of tornadoes as it made landfall on the U.S. Gulf Coast. Prior researchers have revealed that the tornadic cells within tropical cyclone (TC) rainbands are often supercellular ...