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The Simple Model of the Atmospheric Radiative Transfer of Sunshine, or SMARTS for short, is a computer program designed to evaluate the surface solar irradiance components in the shortwave spectrum (spectral range 280 to 4000 nm) under cloudless conditions. The program, written in FORTRAN, relies on simplifications of the equation of radiative transfer to allow extremely fast calculations of the surface irradiance. The irradiance components can be incident on a horizontal, a fixed-tilt or a 2-axis tracking surface. SMARTS can be used for example to evaluate the energy production of solar panels under variable atmospheric conditions. Many other applications are possible. ==History== The first versions of SMARTS were developed by Dr. Gueymard while he was at the Florida Solar Energy Center.〔C. Gueymard, Development and performance assessment of a clear sky spectral radiation model. 22nd ASES Conf., Washington D.C. (1993).〕〔C. Gueymard, Updated transmittance functions for use in fast spectral direct beam irradiance models. Solar ‘94 ASES Conf., San Jose, CA (1994).〕〔C. Gueymard, Simple Model of the Atmospheric Radiative Transfer of Sunshine, version 2 (SMARTS2): Algorithms description and performance assessment. Report FSEC-PF-270-95, Florida Solar Energy Center (1995); http://www.fsec.ucf.edu/en/publications/pdf/FSEC-PF-270-95.pdf.〕 The model employed a structure similar to the earlier SPCTRAL2 model, still offered by (the National Renewable Energy Laboratory (NREL) ), but with finer spectral resolution and updated extraterrestrial spectrum and transmittance functions. The latter consisted mostly of parameterizations of results obtained with MODTRAN. The latest versions (2.9.2 and 2.9.5) of SMARTS are hosted by (NREL ). The program can be freely downloaded, but is subject to a License Agreement, which limits its use to civilian research and education. For new users, an optional graphical interface (for Windows OS only) is available to ease the preparation of the input file. Program packages are available for the Windows, Macintosh and Linux platforms. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Simple Model of the Atmospheric Radiative Transfer of Sunshine」の詳細全文を読む スポンサード リンク
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