Impacts of Turbulence on Hurricane Intensity

Abstract

Our recent studies have found that hurricane boundary layer turbulences, which can only be parameterized in the current weather-prediction models, play significant roles in controlling the hurricane intensity. The long-term goal of this project is thus to improve the hurricane intensity forecast by developing a more physically based turbulence parameterization scheme. The turbulence effect on the hurricane intensity can be quantified only if the turbulences can be resolved in the numerical models. One objective of the current project is to perform a set of large-eddy simulations with increasing resolution until the statistics are converged. These simulations will then be analyzed to estimate eddy-diffusion coefficients for use in weather-prediction models.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 2010
Accession Number
ADA538793

Entities

People

  • George H. Bryan
  • Richard Rotunno
  • Yongsheng Chen

Organizations

  • National Center for Atmospheric Research

Tags

DTIC Thesaurus Topics

  • Boundary Layer
  • Computational Fluid Dynamics
  • Diffusion Coefficient
  • Electronic Mail
  • Fluid Mechanics
  • High Resolution
  • Hurricanes
  • Intensity
  • Large Eddy Simulation
  • Sea Surface Temperature
  • Simulations
  • Space Sciences
  • Storms
  • Surface Temperature
  • Three Dimensional
  • Turbulence
  • Weather Forecasting

Fields of Study

  • Environmental science

Readers

  • Ocean-Atmosphere Mesoscale Modeling, Data Assimilation, and Flux Boundary Layers