Comparison of Slant and Runway Visual Range Relationships for 100, 124, and 155 Feet

Abstract

Ratios of slant visual range measured from heights of 100, 124, and 155 feet to horizontal visual range measured at 15 feet were computed for low- visibility regimes. These ratios were found to be related to the linear fog density profile expressed as the difference in horizontal atmospheric transmittance between the top (100-, 124-, and 155-foot) and bottom (15-foot) levels. It was determined that useful estimates of slant visual range could be provided through these relationships. The predictions would be most accurate when the visibility decreased with height (most common fog structure). A slight increase in accuracy would also be expected with decreasing slant height.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1978
Accession Number
ADA052870

Entities

People

  • William K Lewis

Tags

DTIC Thesaurus Topics

  • Base Lines
  • Classification
  • Data Analysis
  • Data Science
  • Information Science
  • Landing Fields
  • Measurement
  • New Jersey
  • Observation
  • Regression Analysis
  • Runways
  • Standards
  • Transmissometers
  • Transmittance
  • United States
  • United States Government
  • Visibility

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Climatology
  • Geodesy