Description Arguments References
Line length variability is one of the five criterion used for detecting clear points. It is defined as:
L = ∑_{i=1}^{n} √{ (GHI_{i+1} + GHI_{i})^2 + (t_{i+1} + t_{i})^2 }
where t is the time series, and GHI is measured irradiance.
x |
Numeric vector of measured irradiance. |
Global Horizontal Irradiance Clear Sky Models: Implementation and Analysis, Reno et al, 2012, pp. 30.
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