Example of calculating Standard Error for non-independent measurements. Dervied from
Houpert, L., S. Cunningham, N. Fraser, C. Johnson, N. P. Holliday, S. Jones, B. Moat, and D. Rayner. “Observed Variability of the North Atlantic Current in the Rockall Trough From 4 Years of Mooring Measurements.” Journal of Geophysical Research: Oceans 125, no. 10 (2020): e2020JC016403. Accessed November 9, 2020. https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2020JC016403.
Uses data available at https://github.com/lhoupert/article_2020_NAC_JGR