Articles | Volume 30, issue 3
https://doi.org/10.5194/npg-30-375-2023
https://doi.org/10.5194/npg-30-375-2023
Research article
 | 
19 Sep 2023
Research article |  | 19 Sep 2023

How far can the statistical error estimation problem be closed by collocated data?

Annika Vogel and Richard Ménard

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Short summary
Accurate estimation of the error statistics required for data assimilation remains an ongoing challenge, as statistical assumptions are required to solve the estimation problem. This work provides a conceptual view of the statistical error estimation problem in light of the increasing number of available datasets. We found that the total number of required assumptions increases with the number of overlapping datasets, but the relative number of error statistics that can be estimated increases.