Terrain Variables Improve Modeling of Richardson Numbers Less than Unity in the Lower Atmosphere.

Abstract

Occurrences of turbulence based on a critical Richardson number, obtained using data from nine rawinsonde stations for the years 1971-1975, are compared to show evidence of mountain induced effects in the lower atmosphere. The nine stations were selected since they could be divided into three groups by latitude. Two of the stations in each group are located in the Midwestern Plains and the third in the Western Mountain Region. Results from these comparisons led to the creation of a variable to indicate station terrain type for inclusion in an existing regression model. The improved model employing stepwise multiple regression techniques uses terrain, location, and seasonal information. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Aug 22, 1983
Accession Number
ADA137926

Entities

People

  • E. A. Murphy
  • J. P. Noonan
  • K. G. Scharr

Organizations

  • Air Force Research Laboratory

Tags

DTIC Thesaurus Topics

  • Air Force
  • Altitude
  • Analysis Of Variance
  • Atmospheres
  • Classification
  • Computational Fluid Dynamics
  • Geography
  • Latitude
  • Massachusetts
  • Mountains
  • Regression Analysis
  • Richardson Number
  • Security
  • Temperature Gradients
  • Terrain
  • Turbulence
  • United States

Fields of Study

  • Environmental science

Readers

  • Approximation Theory.
  • Astronomy and Astrophysics.
  • Wetland-Land-Environmental Management.