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RISThe Warm-Core Structure of Hurricane Earl (2010)
Publisher: American Meteorological Society
Abstract: he warm-core structure of Hurricane Earl (2010) is examined on four different days, spanning periods of both rapid intensification (RI) and weakening, using high-altitude dropsondes from both the inner core and the ...
How Does the Eye Warm? Part I: A Potential Temperature Budget Analysis of an Idealized Tropical Cyclone
Publisher: American Meteorological Society
Abstract: n this first part of a two-part study, the mechanisms that accomplish the warming in the eye of tropical cyclones are investigated through a potential temperature budget analysis of an idealized simulation. The spatial ...
How Does the Eye Warm? Part II: Sensitivity to Vertical Wind Shear and a Trajectory Analysis
Publisher: American Meteorological Society
Abstract: n Part II of this study, idealized simulations of tropical cyclones are used to investigate the influence of vertical wind shear on the structure of warming and descent in the eye; results are compared with the no-shear ...
Reexamining the Vertical Structure of Tangential Winds in Tropical Cyclones: Observations and Theory
Publisher: American Meteorological Society
Abstract: A few commonly held beliefs regarding the vertical structure of tropical cyclones drawn from prior studies, both observational and theoretical, are examined in this study. One of these beliefs is that the outward slope of ...
On the Height of the Warm Core in Tropical Cyclones
Publisher: American Meteorological Society
Abstract: he warm-core structure of tropical cyclones is examined in idealized simulations using the Weather Research and Forecasting (WRF) Model. The maximum perturbation temperature in a control simulation occurs in the midtroposphere ...
On the Vertical Decay Rate of the Maximum Tangential Winds in Tropical Cyclones
Publisher: American Meteorological Society
Abstract: n this study, it is shown that the maximum tangential winds within tropical cyclones decrease with height at a percentage rate that is nearly independent of both the maximum wind speed and the radius of maximum winds (RMW). ...
Using Simulated Dropsondes to Understand Extreme Updrafts and Wind Speeds in Tropical Cyclones
Publisher: American Meteorological Society
Abstract: AbstractExtreme updrafts (≥10 m s?1) and wind gusts (≥90 m s?1) are ubiquitous within the low-level eyewall of intense tropical cyclones (TCs). Previous studies suggest that both of these features are associated with ...
An Assessment of the Flux Profile Method for Determining Air–Sea Momentum and Enthalpy Fluxes from Dropsonde Data in Tropical Cyclones
Publisher: American Meteorological Society
Abstract: n analysis of the reliability of using dropsonde profile data to compute surface flux coefficients of momentum and heat is performed. Monin?Obukhov (MO) similarity theory forms the basis for the flux profile method, where ...
Predictability and Dynamics of a Nonintensifying Tropical Storm: Erika (2009)
Publisher: American Meteorological Society
Abstract: n this study, the predictability of Tropical Storm Erika (2009) is evaluated by analyzing a 60-member convection-permitting ensemble initialized with perturbations from a real-time ensemble Kalman filter (EnKF) system. ...
Evaluation of Planetary Boundary Layer Parameterizations in Tropical Cyclones by Comparison of In Situ Observations and High-Resolution Simulations of Hurricane Isabel (2003). Part II: Inner-Core Boundary Layer and Eyewall Structure
Publisher: American Meteorological Society
Abstract: This is the second of a two-part study of the representation of the planetary boundary layer (PBL) in high-resolution Weather Research and Forecast Model (WRF) simulations of Hurricane Isabel (2003). The Yonsei University ...