bsrn.qc.diff_ratio.k_low_sza_test#

bsrn.qc.diff_ratio.k_low_sza_test(ghi, dhi, zenith)[source]#

Check diffuse fraction ($k$) for low solar zenith angles ($Z < 75^circ$) [1] [2]. 检查低太阳天顶角 ($Z < 75^circ$) 下的散射分数 ($k$)。

Parameters:

  • ghi (numeric or Series) – Global horizontal irradiance ($G_h$). [W/m^2] 水平总辐照度 ($G_h$)。[瓦/平方米]

  • dhi (numeric or Series) – Diffuse horizontal irradiance ($D_h$). [W/m^2] 水平散射辐照度 ($D_h$)。[瓦/平方米]

  • zenith (numeric or Series) – Solar zenith angle ($Z$). [degrees] 太阳天顶角 ($Z$)。[度]

Returns:

flags – Boolean flags (True = Pass). [bool] 布尔标记（True = 通过）。[布尔值]

Return type:

Series or ndarray

References