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RISEstimation of Dissipative Heating Using Low-Level In Situ Aircraft Observations in the Hurricane Boundary Layer
Publisher: American Meteorological Society
Abstract: Data collected in the low-level atmospheric boundary layer in five hurricanes by NOAA research aircraft are analyzed to measure turbulence with scales small enough to retrieve the rate of dissipation. A total of 49 flux ...
Observational Estimates of the Horizontal Eddy Diffusivity and Mixing Length in the Low-Level Region of Intense Hurricanes
Publisher: American Meteorological Society
Abstract: his study examines further the characteristics of turbulent flow in the low-level region of intense hurricanes using in situ aircraft observations. The data analyzed here are the flight-level data collected by research ...
An Observational Study of Vertical Eddy Diffusivity in the Hurricane Boundary Layer
Publisher: American Meteorological Society
Abstract: lthough vertical eddy diffusivity or viscosity has been extensively used in theoretical and numerical models simulating tropical cyclones, little observational study has documented the magnitude of the eddy diffusivity in ...
Hurricane Sea Surface Inflow Angle and an Observation-Based Parametric Model
Publisher: American Meteorological Society
Abstract: his study presents an analysis of near-surface (10 m) inflow angles using wind vector data from over 1600 quality-controlled global positioning system dropwindsondes deployed by aircraft on 187 flights into 18 hurricanes. ...
Effects of Parameterized Boundary Layer Structure on Hurricane Rapid Intensification in Shear
Publisher: American Meteorological Society
Abstract: This study investigates the role of the parameterized boundary layer structure in hurricane intensity change using two retrospective HWRF forecasts of Hurricane Earl (2010) in which the vertical eddy diffusivity Km was ...
Asymmetries during Eyewall Replacement Cycles of Hurricane Ivan (2004)
Publisher: American Meteorological Society
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 ...
Evaluation of Planetary Boundary Layer Parameterizations in Tropical Cyclones by Comparison of In Situ Observations and High-Resolution Simulations of Hurricane Isabel (2003). Part I: Initialization, Maximum Winds, and the Outer-Core Boundary Layer
Publisher: American Meteorological Society
Abstract: In this study, the first of two parts, the planetary boundary layer (PBL) depicted in high-resolution Weather Research and Forecast Model (WRF) simulations of Hurricane Isabel (2003) is studied and evaluated by direct ...
Estimation and Mapping of Hurricane Turbulent Energy Using Airborne Doppler Measurements
Publisher: American Meteorological Society
Abstract: Hurricane turbulent kinetic energy (TKE) was computed using airborne Doppler measurements from the NOAA WP-3D tail radars, and TKE data were retrieved for a variety of storms at different stages of their life cycle. The ...
Multiscale Structure and Evolution of Hurricane Earl (2010) during Rapid Intensification
Publisher: American Meteorological Society
Abstract: he structure and evolution of Hurricane Earl (2010) during its rapid intensification as sampled by aircraft is studied here. Rapid intensification occurs in two stages. During the early stage, covering ~24 h, Earl was a ...