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Fig. 3 | Earth, Planets and Space

Fig. 3

From: On the feasibility of promptly producing quasi-definitive magnetic observatory data

Fig. 3

Evolution through 2008 of the mean and the standard deviation (represented as an error bar) of the differences (in nT) between quasi-definitive and definitive 1-minute data for the X component, at the nine selected observatories. The mean and the standard deviation at month n are calculated using all data from January to month n. For a better readability the vertical scale is distinct for each observatory.

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