Airmass and atmospheric models¶
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Calculate the relative and absolute airmass. |
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Determine absolute (pressure-adjusted) airmass from relative airmass and pressure. |
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Calculate relative (not pressure-adjusted) airmass at sea level. |
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Determine altitude from site pressure. |
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Determine site pressure from altitude. |
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Calculates precipitable water (cm) from ambient air temperature (C) and relatively humidity (%) using an empirical model. |
Spectral mismatch modifier based on precipitable water and absolute (pressure-adjusted) airmass. |
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Approximate broadband aerosol optical depth. |
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Calculate Linke turbidity using Kasten pyrheliometric formula. |
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Get AOD at specified wavelength using Angstrom turbidity model. |
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Calculate Angstrom alpha exponent. |