Simulations and Data Analysis for Air Force Optical Turbulence Forecasting Applications

Abstract

We completed a series of Direct-Numerical and Large-Eddy Simulations (DNS and LES) of wind-shear instability and gravity wave breaking and associated analysis to characterize atmospheric turbulence and its optical impacts. We also analyzed hundreds of rawinsonde profiles to determine the parameters associated with turbulence layers observed in the troposphere and stratosphere. Finally, we developed a Bayesian Hierarchical Modeling (BHM) framework for combining the simulation and observational results so that atmospheric turbulence and optical turbulence atmospheric decision aids can be developed and improved. These results can also be used to develop subgrid-scale turbulence and optical turbulence parameterizations for operational mesoscale Numerical Weather Prediction models, e.g., the Weather Research and Forecasting Model (WRF).

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Document Details

Document Type
Technical Report
Publication Date
May 22, 2007
Accession Number
ADA471328

Entities

People

  • David C Fritts
  • Joseph Werne
  • Thomas Lund

Organizations

  • Northwest Research Associates

Tags

Communities of Interest

  • Air Platforms
  • C4I
  • Cyber
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Atmospheric Motion
  • Boundaries
  • Boundary Layer
  • Buoyancy
  • Data Analysis
  • High Resolution
  • Measurement
  • Military Research
  • Reynolds Number
  • Statistical Analysis
  • Temperature Gradients
  • Three Dimensional
  • Turbulence
  • Turbulent Mixing
  • Wind Shear

Fields of Study

  • Environmental science

Readers

  • Aerosol Science/Aerosol Physics
  • Atmospheric Science/Meteorology
  • Computational Fluid Dynamics (CFD)

Technology Areas

  • AI & ML
  • AI & ML - Bayesian Inference
  • Space