The ROSCOE Manual. Volume 24. Natural Clouds (Physical and Optical Properties and Statistics).

Abstract

The effect of natural clouds on IR observables from nuclear explosions is modeled for the wavelength range from 2 to 5 microns. A computer code for use with the ROSCOE-IR main program is provided to allow evaluation of the radiance resulting from transmission and reflection by natural clouds. Mie scattering cross-sections are calculated and used to generate transport cross-sections and bidirectional reflectance coefficients. Cloud transmission is treated by diffusion. A deterministic model allows the user to specify the cloud geometry. A statistical model allows selection of geographic weather averages and generates the probability distribution in radiance coefficients. Solar radiation and natural cloud thermal emission are treated.

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Document Details

Document Type
Technical Report
Publication Date
Jul 31, 1979
Accession Number
ADA083339

Entities

People

  • D. A. Hamlin
  • D. E. Stevenson
  • R. D. Moffat
  • R. R. Johnston
  • W. A. Aron

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Sensors
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Altitude
  • Clouds
  • Computer Programs
  • Computers
  • Convex Bodies
  • Detectors
  • Equations
  • Geometry
  • Optical Properties
  • Physical Properties
  • Plastic Explosives
  • Probability Distributions
  • Reflectance
  • Solar Radiation
  • Three Dimensional
  • Transmittance
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Atmospheric Remote Sensing.
  • Computational Modeling and Simulation
  • Solar Physics