In this document
We will teach you how to calculate missing solar parameters in the dataset.
The 3rd component calculator is dedicated to Global Horizontal Irradiance (GHI), Direct Normal Irradiance (DNI), and Diffuse Horizontal Irradiance (DIF) parameters only. If your dataset contains only two of those parameters, you can use this tool to calculate the 3rd parameter.
From the main menu, select Tools/Calculate 3rd component.
Select the parameter you want to calculate and state its name. A new column with this name will be added to the dataset upon execution.
Select input parameters from the dropdowns. Some datasets may contain more columns of the same parameter type. Ensure you are selecting the correct ones.
Parameter flagging:
Copy flags from reference parameters: If selected, the related flag column will be created, and all flags from the input parameters will be added to the calculated parameter.
Run radiation QC for calculated parameter: Selecting this option will execute the Solar radiation data quality control check and flag values accordingly.
Choose postprocessing methods:
Limit for low sun elevation (deg): state the sun elevation threshold (in degrees) under which the values will not be calculated to avoid outliers.
Remove values (replace with NaN): Will remove outliers from the calculated parameter.
Flag values with flag: Values under the selected threshold will be flagged with the selected flag.
Execute the calculation using the “Run” button.
Notes:
You can calculate multiple parameters in this tool and save them all at once later. Names of already calculated parameters are listed in the orange text to avoid duplications.
New parameters are saved only after clicking the “Save” button. Clicking “Cancel” will discard the changes.