Atmospheric Transmittance/Radiance: Computer Code LOWTRAN 5

Abstract

This report describes a computer code for predicting atmospheric transmittance and the thermal radiation emitted by the atmosphere and earth from 350 to 40,000 per cm at a spectral resolution of 20 per cm. The program is based on the LOWTRAN 4 (1978) computer code. New altitude and relative-humidity dependent aerosol models and new fog models are included in the code. In addition, the new code structure consists of a main program and 19 subroutines. The computer code contains representative (geographical and seasonal) atmospheric models and representative aerosol models with an option to replace them with user-derived or measured values. The program can be run in one of two modes, namely, to compute only atmospheric transmittance or both atmospheric transmittance and radiance for any given slant path geometry.

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Document Details

Document Type
Technical Report
Publication Date
Feb 21, 1980
Accession Number
ADA088215

Entities

People

  • E. P. Shettle
  • F. X. Kneizys
  • J. H. Chetwynd Jr.
  • L. W. Abreu
  • W. O. Gallery

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics
  • Sensors
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Computer Programs
  • Computers
  • Detectors
  • Dew Point
  • Electromagnetic Radiation
  • Geography
  • Geometry
  • Humidity
  • Measurement
  • Meteorology
  • Optical Properties
  • Optics
  • Plastic Explosives
  • Radiation
  • Refractive Index
  • Water Vapor

Fields of Study

  • Physics

Readers

  • Atmospheric Remote Sensing.
  • Computer Science.