Approximate Solutions to the Radiative Transfer Equation Using the Elsasser Scheme.

Abstract

The purpose of this study is to analyze and compare the atmospheric radiative fluxes and cooling rates resulting from two approximations. As a norm for the comparison, a quasi-exact solution is also applied. This is accomplished by using the EC formulation of the generalized absorption coefficient. Calculations are carried out for two model atmospheres for part of the 6.3 micron water vapor band. It is found that the Z approximation is more accurate for the downward fluxes and the CH approximation is more accurate for the upward fluxes. For the model atmospheres studied the cooling rate errors are usually smaller for the Z approximation, unless the divergence of the net flux is extremely small.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1977
Accession Number
ADA049933

Entities

People

  • Paul Joseph Breslin

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Air Platforms
  • Space

DTIC Thesaurus Topics

  • Absorption Coefficients
  • Accuracy
  • Air Force
  • Coefficients
  • Computer Programs
  • Computers
  • Differential Equations
  • Equations
  • Integrals
  • Linear Differential Equations
  • Materials
  • Numerical Analysis
  • Plastic Explosives
  • Radiation
  • Radiative Transfer
  • United States
  • Water Vapor

Readers

  • Calculus or Mathematical Analysis
  • Spectroscopy.