The Aircraft Icing Environment in Wintertime, Low Ceiling Conditions.

Abstract

Radiosonde (Raob) temperature and humidity data were used to deduce the vertical distribution of clouds and aircraft icing conditions near Washington, DC when low ceilings (- or < 1000 ft)(0/3 km) occurred along with surface temperatures near freezing. Automated predictions of the vertical distribution of icing probability, type, and severity were generated from the Raob data. The technique employs a U.S. Air Force method that has been computerized by one of the authors (RKJ) for use on Hewlett Packard model 9845 computers. The predictions were compared with pilot reports from the vicinity and reasonable agreement was found. Results: Vertical Distribution of Clouds Above Cold, Low Ceilings; Effects of Local Topography on Height of Cold, Low Ceilings; Vertical Profiles of Icing Conditions; Computation of Icing Conditions from Raob Data; Comparison of Forecasted Icing Conditions with Pilot Reports.

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Document Details

Document Type
Technical Report
Publication Date
Oct 28, 1985
Accession Number
ADA160578

Entities

People

  • M. D. Mueller
  • M. R. Henderson
  • N. B. Guttman
  • R. K. Jeck

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Force
  • Air Temperature
  • Aircrafts
  • Altitude
  • Classification
  • Cloud Cover
  • Clouds
  • Environment
  • Freezing
  • High Pressure
  • Ice Formation
  • Inversion
  • Lapse Rate
  • Plastic Explosives
  • Surface Temperature
  • Topography
  • Transition Temperature

Fields of Study

  • Environmental science

Readers

  • Atmospheric Science/Meteorology
  • Climatology
  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.