Abstract
Postglacial gravity change in Fennoscandia—three decades of repeated absolute gravity observations
Highlights
Glacial isostatic adjustment (GIA) is the response of the Earth to changing loads on its surface due to build-up and ablation of ice sheets and glaciers
For the first time we present estimated gravity rates of change based on all repeated gravity observations, spanning over three decades, in the Fennoscandian land uplift area
Estimated gvalues are assessed by the geophysical relation between gand h, found from GIAmodelling, and the uncertainties in these relations are discussed
Summary
Glacial isostatic adjustment (GIA) is the response of the Earth to changing loads on its surface due to build-up and ablation of ice sheets and glaciers. The last glaciation peaked about 22 000 yr ago in Fennoscandia (Lambeck et al 2010). The ice vanished about 10 000 yr ago (Lambeck et al 2010), the Earth is still readjusting due to the viscoelastic nature of the mantle, which leads to time-delayed processes.
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