Accession Number:

ADA102524

Title:

The ROSCOE MANUAL. Volume 27. Natural Background Radiation

Descriptive Note:

Final rept. 1 Jan 1976-30 Jun 1979

Corporate Author:

SCIENCE APPLICATIONS INC LA JOLLA CA

Report Date:

1980-07-01

Pagination or Media Count:

344.0

Abstract:

The Natural Background Radiation Module computes the Earths natural upwelling spectral radiance from 2 to 5 micrometers by averaging over paths in an Earth-tangent cone with vertex at each selected altitude. The processes contributing to the radiance are emission from air, Earths surface, and clouds and reflection of solar radiation from Earths surface and clouds attenuation is by molecules and aerosols. The Module integrates ROSCOE-IR models for atmosphere, atmospheric thermal emission, molecular transmittance, aerosols, clouds, Earths surface characterization and radiance, solar radiation, and upwelling natural radiation. The last 3 models are documented fully other models three of which were developed by other organizations are documented mainly in terms of functions performed, inputs, and outputs. The user selects the modeled Earths surface from one of seven categories with possibly an associated descriptor Lambertian surface and diffuse reflectance, wind- ruffled water and wind speed, snow and its age parameter, sand, soil, foliage, and urban material and degree-of-urbanization parameter.

Subject Categories:

  • Meteorology
  • Computer Programming and Software
  • Optics
  • Thermodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE