Kipp&Zonen BSRN Scientific Solar Monitoring System - Manual (Page 176)

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H 2. Common Formulas
H 2.1 Type A Evaluation
If the num ber of m easurem ents is , and is the i m easurem ent then: th
Mean
Variance
Standard Deviation
Experimental Standard Deviation of the Mean
Standard Uncertainty, Type A Evaluation
H 2.2 Type B Evaluation
Degrees of freedom , from relative uncertainty
If:
Then: