Microphysical Influences on Electro-Optic Signal Propagation in Complex Areas

Abstract

This paper presents a finite-difference computer model to predict the microphysical influences on electro-optic signal propagation in complex areas. e.g.. around single and mutltiple building arrays and forests. The model incorporates physics-based algorithms to account for advection. the pressure gradient. eddy diffusion. and drag forces due to vegetation (e.g.. open fields or forests). Note that mechanisms to account for heating, cooling, and moisture flux are not included at this time. Our main concern is to maintain a computationally efficient program code that is also flexible with regard to modifications and debugging. This allows us to apply the computer model to different kinds of tests. Nevertheless, we anticipate that this research will contribute much useful information related to laser optic signal propagation such a the the impact of buildings and forests on future optical turbulence (Cn2) calculations.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 2005
Accession Number
ADA443261

Entities

People

  • Arnold D. Tunick
  • Gary Carhart

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Advection
  • Computational Fluid Dynamics
  • Computer Simulations
  • Computers
  • Debugging
  • Diffusion
  • Equations
  • Fluid Dynamics
  • Fluid Mechanics
  • Ground Level
  • Leading Edges
  • Mechanics
  • Military Research
  • Pressure Gradients
  • Refractive Index
  • Turbulence
  • Wind Velocity

Readers

  • Atmospheric Remote Sensing.
  • Ocean-Atmosphere Mesoscale Modeling, Data Assimilation, and Flux Boundary Layers
  • Wetland-Land-Environmental Management.

Technology Areas

  • Directed Energy