Fig. 4

Calibration of TriOS radiance (a) and irradiance (c) sensor. Example of calibration coefficient changes for the radiance (b) and irradiance (d) sensor after one year running.

Calibration of TriOS radiance (a) and irradiance (c) sensor. Example of calibration coefficient changes for the radiance (b) and irradiance (d) sensor after one year running.