pvlib.atmosphere.bird_hulstrom80_aod_bb

pvlib.atmosphere.bird_hulstrom80_aod_bb(aod380, aod500)[source]

Approximate broadband aerosol optical depth.

Bird and Hulstrom developed a correlation for broadband aerosol optical depth (AOD) using two wavelengths, 380 nm and 500 nm.

Parameters
  • aod380 (numeric) – AOD measured at 380 nm. [unitless]

  • aod500 (numeric) – AOD measured at 500 nm. [unitless]

Returns

aod_bb (numeric) – Broadband AOD. [unitless]

References

1

Bird and Hulstrom, “Direct Insolation Models” (1980) SERI/TR-335-344

2

R. E. Bird and R. L. Hulstrom, “Review, Evaluation, and Improvement of Direct Irradiance Models”, Journal of Solar Energy Engineering 103(3), pp. 182-192 (1981) DOI: 10.1115/1.3266239