SMARTS spectral model

Version 2.9.2 of the SMARTS spectral model used to generate the spectral reference standard, the users manual for the model, and a list of references, can be downloaded free of charge from the National Renewable Energy Laboratory Renewable Resource Data Center at the following URL http //rredc.nrel.gov/solar/models /SMARTS/. A CD-ROM adjunct to the ASTM G-173-03 standard, with a copy of the model, manual, and reference material is available for purchase from ASTM. 

These criteria resulted in the choice of a relatively simple, but accurate spectral model of Gueymard (SMARTS Simple Model for Atmospheric Transmission of Sunshine) to compute the reference standard terrestrial spectra.7... 

The remaining 19.1% of the energy required to split water has to be supplied for the production step. Figure 4 depicts the terrestrial solar direct normal spectral irradiance distribution computed using SMARTS version 2.9.2 model with input file from ASTM Standard Table G 173-03. ... 

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