Description of the Strategic High-Altitude Atmospheric Radiation Code (SHARC)
Abstract
The report describes an upgraded version of the strategic high- altitude radiance code, SHARC-2. SHARC calculates atmospheric radiance and transmittance over the 2-40 micrometer spectral region for arbitrary paths within 50 and 300 km altitude, including space viewing. It models radiation due to NLTE (Non-Local Thermodynamic Equilibrium molecular emissions which are the dominant sources at these altitudes. This new version, which is now ready for distribution, has been upgraded to include a fully integrated auroral model with time-dependent chemistry, extention down to 50 km altitude, and radiation from the minor isotopes of CO2. In addition, there have been numerous internal upgrades to the various modules. These include a Voigt lineshape for the radiative excitation module; embedding of the auroral region into a quiescent atmosphere; and improvements in the radiation transport algorithms.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 27, 1990
- Accession Number
- ADA237089
Entities
People
- D. C. Robertson
- J. H. Gruninger
- J. W. Duff
- L. S. Bernstein
- R. J. Healey
- R. L. Sundberg