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Recent Baltic Sea Level Changes Induced by Past and Present Ice Masses

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Coastline Changes of the Baltic Sea from South to East

Part of the book series: Coastal Research Library ((COASTALRL,volume 19))

Abstract

The present study examines recent sea-level changes in the Baltic Sea region which are induced by past as well as by present-day ice-mass changes. Still ongoing changes in relative sea level caused by glacial isostatic adjustment (GIA) are modelled in a gravitationally self-consistent way using a GIA model. Moreover, sea-level fingerprints due to present-day ice loss in Greenland and Antarctica could also be modelled. The inducing mass-change patterns are inferred from 11 years of satellite gravimetry observations. Long-term changes in relative sea level and crustal deformations are derived from observations at tide gauges and GPS sites. Both results could be used to validate the GIA modelling results and to infer a regional long-term (1901–1990) sea-level estimate. This regional estimate amounts to 1.2±0.2 mm/a and is in agreement with other global estimates.

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Correspondence to Andreas Groh .

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Groh, A., Richter, A., Dietrich, R. (2017). Recent Baltic Sea Level Changes Induced by Past and Present Ice Masses. In: Harff, J., Furmańczyk, K., von Storch, H. (eds) Coastline Changes of the Baltic Sea from South to East. Coastal Research Library, vol 19. Springer, Cham. https://doi.org/10.1007/978-3-319-49894-2_4

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