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How is the sigma calculated?
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For some processes a data quality is already defined. What does this depend on? Partly even with a Sigma value partly not. Why is this the case and how is the sigma calculated?
data quality
uncertainty
calculation
asked
Dec 7, 2020
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openLCA
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Yasemin
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Dec 8, 2020
by
Andreas Ciroth
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Hi Yasemin,
e.g. in ecoinvent, this is described in the ecoinvent 3 method report; see also e.g. this article from a project I was happy to contribute (and lead, even), some years ago:
https://www.readcube.com/articles/10.1007%2Fs11367-013-0670-5?author_access_token=uTKXu9RmwnEdzkABxkLVlPe4RwlQNchNByi7wbcMAY4hbIHqYus8MYapLCltH5PttD5ehLwKEQpkRxhQZ6pSR4TehyIiQnLpiOs1JTXIHUWh31FlDZO5MVoT85DSvQdx-f1nLZP3yNpa9T5NyDS0Cg==
.
And the full report:
https://www.greendelta.com/wp-content/uploads/2017/03/Pedigree_report_final_May2012.pdf
Best wishes, Andreas
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