Validation of FASE (FASCODE for the Environment) and MODTRAN3: updates and comparisons with clear-sky measurements

Hilary E. Snell; Gail P. Anderson; Jinxue Wang; Jean-Luc Moncet; James H. Chetwynd Jr.; Stephen J. English

doi:10.1117/12.228940

27 December 1995 Validation of FASE (FASCODE for the Environment) and MODTRAN3: updates and comparisons with clear-sky measurements

Hilary E. Snell, Gail P. Anderson, Jinxue Wang, Jean-Luc Moncet, James H. Chetwynd Jr., Stephen J. English

Author Affiliations +

Proceedings Volume 2578, Passive Infrared Remote Sensing of Clouds and the Atmosphere III; (1995) https://doi.org/10.1117/12.228940
Event: Satellite Remote Sensing II, 1995, Paris, France

Abstract

FASE is a line-by-line (LBL) atmospheric radiation code, grounded in the original USAF FASCODE (Fast Atmospheric Signature Code) line shape decomposition algorithm. The Department of Energy Atmospheric Radiation Measurement (ARM) Program and the AF/PL Geophysics Directorate jointly supported FASE which now envelops both agencies' important upgrades. ARM's LBLRTM (LBL Radiative Transfer Model authored by S.A. Clough and P.D. Brown of AER, Inc.) expanded the FASCODE algorithms to specifically address scientific and coding issues of particular concern to the climate community including: H20 and C02 continua, lineshape, radiance algorithms, sampling, vectorization, array parameterization, spectral ranges and inputloutput modes. These features have then been recombined with FASCODE non- LTE and laser options, plus shared common elements from MODTRAN (Moderate Resolution Transmittance Model, a 2 cm- band model) evolution. These include a new solar irradiance and UV cross sections. Examples of the feedback and validation between FASE and MODTRAN3 will be presented.

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Hilary E. Snell, Gail P. Anderson, Jinxue Wang, Jean-Luc Moncet, James H. Chetwynd Jr., and Stephen J. English "Validation of FASE (FASCODE for the Environment) and MODTRAN3: updates and comparisons with clear-sky measurements", Proc. SPIE 2578, Passive Infrared Remote Sensing of Clouds and the Atmosphere III, (27 December 1995); https://doi.org/10.1117/12.228940

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