Wave-Driven Marine Boundary Layers: Implications for Atmospheric Electromagnetics and Ocean Acoustics

Abstract

The description of electromagnetic propagation through the marine atmospheric boundary layer is considerably more complex than through the terrestrial boundary layer. Contributing to the complexity are refractive ducts as well as the moving wave-roughened sea surface. A significant issue for propagation in marine environment is the reproducible tendency of models to overestimate the signal's intensity at the receiver (Barrios and Patterson (2002)). Such discrepancy, in turn, leads to a uncertainty in estimating a number of variables with practical importance, among them being the distance to an object detected by radar and its velocity. This error is likely due to ignoring or incorrectly describing the physical mechanisms responsible for signal degradation. The long-term goal of this effort is to advance our quantitative understanding of the physical factors influencing the signal propagation in the marine environment, essential for detection, tracking, communication and guidance applications.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 2008
Accession Number
ADA533037

Entities

People

  • Tihomir Hristov

Organizations

  • Johns Hopkins University

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Acoustics
  • Atmospheric Motion
  • Boundaries
  • Boundary Layer
  • Electromagnetic Wave Propagation
  • Environment
  • Frequency Bands
  • Intensity
  • Layers
  • Measurement
  • Meteorology
  • Refractive Index
  • Scattering
  • Surface Waves
  • Wave Propagation
  • Wind
  • Wind Velocity

Fields of Study

  • Environmental science
  • Physics

Readers

  • Acoustical Oceanography.
  • Computational Modeling and Simulation
  • Ocean-Atmosphere Mesoscale Modeling, Data Assimilation, and Flux Boundary Layers