Hydrological Excitation of Polar Motion Derived from GRACE Gravity Field Solutions

Figure 5

Polar motion excitations integrated over the Earth’s north high latitudes (latitudes ≥30^∘𝑁) and over the other latitudes (latitudes <30^∘𝑁) using GRACE solutions and CPC and GLDAS models. Larger discrepancies between the models and GRACE observations come from the north high latitudes estimations.

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