DETERMINATION OF ATMOSPHERICALLY INDUCED PHASE FLUCTUATIONS BY LONG DISTANCE INTERFEROMETRY AT 6328 A.

Abstract

Experimental values of atmospherically induced phase fluctuations have been obtained for various pathlengths using a near-ground horizontal Mach-Zehnder setup at 6328 A. Independent determination of the structure function constant of the refractive index and other relevant parameters permitted a clear definition of prevailing meteorological conditions. It is found that for low turbulence, or strong turbulence and short pathlength, Tatarski's theory generally under-estimates the values of the observed rms phase fluctuations. For higher turbulence no continuous phase information is directly obtainable, and the concept of phase structure function becomes experimentally undefined. (Author)

Document Details

Document Type
Technical Report
Publication Date
May 01, 1970
Accession Number
AD0709579

Entities

People

  • Gunthard K. Born
  • Rudolf G. Buser

Organizations

  • United States Army Communications-Electronics Command

Tags

DTIC Thesaurus Topics

  • Fluid Dynamics
  • Fluid Mechanics
  • Interferometry
  • Mechanics
  • Refractive Index
  • Turbulence

Fields of Study

  • Physics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Spectroscopy.
  • Theoretical Analysis.