AMOC monitoring

Monthly mean ocean bottom pressure (OBP) from the NEMO ocean model (a), compared with simulated satellite gravimetry observations at degree and order 60 for: b) GRACE-C, c) NGGM, and d) MAGIC scenarios.

AMOC variability leaves a distinct ocean bottom pressure (OBP) signature along the western boundary of the North Atlantic.

This signature is obscured by noise with a GRACE-like mission.

Simulated NGGM data captures OBP variability on the western boundary with much greater fidelity.

MAGIC’s ability to resolve this crucial OBP signal, and enable robust AMOC monitoring from space, hinges on NGGM’s improved noise characteristics.

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