Data_Sheet_1_Multidecadal Sea Level Variability in the Baltic Sea and Its Impact on Acceleration Estimations.pdf

Multidecadal sea level variation in the Baltic Sea is investigated from 1900 to 2020 deploying satellite and in situ datasets. As a part of this investigation, nearly 30 years of satellite altimetry data are used to compare with tide gauge data in terms of linear trend. This, in turn, leads to valid...

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Bibliographic Details
Main Authors: Armin Agha Karimi, Mohammad Bagherbandi, Milan Horemuz
Format: Dataset
Language:unknown
Published: 2021
Subjects:
Oceanography
Marine Biology
Marine Geoscience
Biological Oceanography
Chemical Oceanography
Physical Oceanography
Marine Engineering
the Baltic Sea
internal variability
multidecadal sea level variation
vertical crustal movement
sea level acceleration
Fennoscandia
North Atlantic
North Atlantic oscillation
Online Access:https://doi.org/10.3389/fmars.2021.702512.s001
https://figshare.com/articles/dataset/Data_Sheet_1_Multidecadal_Sea_Level_Variability_in_the_Baltic_Sea_and_Its_Impact_on_Acceleration_Estimations_pdf/15579681
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Summary:Multidecadal sea level variation in the Baltic Sea is investigated from 1900 to 2020 deploying satellite and in situ datasets. As a part of this investigation, nearly 30 years of satellite altimetry data are used to compare with tide gauge data in terms of linear trend. This, in turn, leads to validation of the regional uplift model developed for the Fennoscandia. The role of North Atlantic Oscillation (NAO) in multidecadal variations of the Baltic Sea is also analyzed. Although NAO impacts the Baltic Sea level on seasonal to decadal time scales according to previous studies, it is not a pronounced factor in the multidecadal variations. The acceleration in the sea level rise of the basin is reported as statistically insignificant in recent studies or even decelerating in an investigation of the early 1990s. It is shown that the reason for these results relates to the global warming hiatus in the 1950sāˆ’1970s, which can be seen in all eight tide gauges used for this study. To account for the slowdown period, the acceleration in the basin is investigated by fitting linear trends to time spans of six to seven decades, which include the hiatus. These results imply that the sea level rise is accelerated in the Baltic Sea during the period 1900ā€“2020.

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