pvperfsolar performance modeling

Reference

API field

Spectral air mass

Which air-mass formula feeds the correction

What it is

Selects the air-mass formula that feeds the Lee and Panchula correction. It is set on the Model tab together with the step Where the correction acts.

Typical values and how to get it

Chosen on the Model tab.

Values

Kasten 1966 = kasten_1966 (default): the Kasten 1966 relative air mass, corrected for the site elevation · Kasten-Young 1989 = kasten_young_1989: the Kasten–Young relative air mass times the station pressure over the standard pressure, capped at 10 unless an air-mass cap is given

References

  1. Kasten 1966, A new table and approximation formula for the relative optical air mass, Archiv für Meteorologie, Geophysik und Bioklimatologie B14 206–223
  2. Kasten & Young 1989, Revised optical air mass tables and approximation formula, Applied Optics 28(22) 4735–4738

API

spectral.airmass_method