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Earth, Planets and Space
Fig. 2 | Earth, Planets and Space

Fig. 2

From: Variation of Antarctic circumpolar current and its intensification in relation to the southern annular mode detected in the time-variable gravity signals by GRACE satellite

Fig. 2

The leading EOF mode solutions of the non-seasonal OBP from the GRACE datasets, where the spatial pattern shows the amplitude of fluctuation (with positive or negative polarity) at each location according to the corresponding time history, for the GRACE datasets of: a the GAD; b the GSM; and c the GAD+GSM. The spatial pattern is manifested as the OBP variation in unit of Pa; the time series (the blue curves) are normalized and compared with the SAM Index (the red curve)

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