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Extraterrestrial solar spectrum, 3000-6100 a at 1-a intervals
Applied Optics
|February 4, 2010
Summary
Standard solar irradiance data was insufficient for many applications. Researchers developed a more detailed extraterrestrial solar spectrum, providing improved spectral irradiance values for enhanced solar research.
Area of Science:
- Atmospheric Science
- Astrophysics
- Radiometry
Background:
- Standard solar constant and extraterrestrial solar spectrum data are essential for various scientific applications.
- Existing spectral irradiance data, particularly in the visible and near-UV ranges, often lacks the necessary resolution for detailed analysis.
Purpose of the Study:
- To address the inadequacy of standard solar spectral data for specific applications.
- To derive a more detailed and accurate extraterrestrial solar spectral irradiance dataset.
Main Methods:
- Reviewed standard values of the solar constant and extraterrestrial solar spectrum.
- Acquired a high-resolution solar spectrum using a Perkin-Elmer, Model 112 monochromator.
- Developed a normalization program to reconcile the detailed spectrum with standard values.
Main Results:
- Identified limitations in existing spectral irradiance data resolution.
- Obtained a detailed solar spectrum with sufficient resolution for diverse applications.
- Derived extraterrestrial solar spectral irradiance values at 1-Å intervals from 3000-6100 Å.
Conclusions:
- The newly derived detailed solar spectrum provides a more accurate representation of extraterrestrial solar irradiance.
- This enhanced dataset is suitable for applications requiring high spectral resolution.
- The findings offer improved data for solar energy research, atmospheric modeling, and other scientific fields.
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