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. Author manuscript; available in PMC: 2021 Sep 24.
Published in final edited form as: Nature. 2021 Mar 24;591(7851):592–598. doi: 10.1038/s41586-021-03303-x

Extended Data Figure 4. Impact of linear regression choices on summer mixed-layer depth, stratification trends, and their associated standard errors.

Extended Data Figure 4

1970-2018 summer trend for (a,c) mixed layer depth and (e,g) summer pycnocline stratification, and their associated standard error: (b,d) standard error of mixed layer depth trend and (f,h) standard error of summer pycnocline stratification trend. Panels (a-b and e-f) show the solution computed with the linear regression model Choice 1 (covariance between observations); Panels (c-d and g-h) show the solution computed with the linear regression model Choice 2 (no covariance between observations).