bsrn.qc.k_index.kt_limit_test

bsrn.qc.k_index.kt_limit_test(ghi, bni_extra, zenith)

Check if clearness index ($k_t$) is within physically possible limits [1].

Parameters:

• ghi (numeric or Series) – Global horizontal irradiance ($G_h$). [W/m^2]

• bni_extra (numeric or Series) – Extraterrestrial beam normal irradiance ($E_{0n}$). [W/m^2]

• zenith (numeric or Series) – Solar zenith angle ($Z$). [degrees]

Returns:

flags – Boolean flags (True = Pass). [bool]

Return type:

Series or ndarray

References

[1]

Forstinger, A., et al. (2021). Expert quality control of solar radiation ground data sets. In SWC 2021: ISES Solar World Congress. International Solar Energy Society.