Metocean study for the planning of the FSRU terminal: a case study at the Estonian coast of the Gulf of Finland

Raudsepp, Urmas; Maljutenko, Ilja; Björkqvist, Jan-Victor; Barzandeh, Amirhossein; Rikka, Sander; Männik, Aarne; Pärt, Siim; Lagemaa, Priidik; Alari, Victor; Vahter, Kaimo; Uiboupin, Rivo

doi:10.5194/sp-7-osr10-14-2026

Articles | Volume 7-osr10

https://doi.org/10.5194/sp-7-osr10-14-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Report:

10th edition of the Copernicus Ocean State Report (OSR10)

https://doi.org/10.5194/sp-7-osr10-14-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 7-osr10

30 Sep 2026

| OSR10 | Chapter 3.2

| 30 Sep 2026 | OSR10 | Chapter 3.2

Metocean study for the planning of the FSRU terminal: a case study at the Estonian coast of the Gulf of Finland

Urmas Raudsepp, Ilja Maljutenko, Jan-Victor Björkqvist, Amirhossein Barzandeh, Sander Rikka, Aarne Männik, Siim Pärt, Priidik Lagemaa, Victor Alari, Kaimo Vahter, and Rivo Uiboupin

Supplement

https://doi.org/10.5194/sp-7-osr10-14-2026-supplement

Data sets

50-Year return level datasets for the Baltic Sea Urmas Raudsepp et al. https://doi.org/10.5281/zenodo.20378599

Metocean Data and Analysis Scripts for FSRU Terminal Planning on the Estonian Coast of the Gulf of Finland Urmas Raudsepp et al. https://doi.org/10.5281/zenodo.20356006

Baltic Sea Physics Reanalysis EU Copernicus Marine Service Product https://doi.org/10.48670/moi-00013

Global Ocean Daily Gridded Reprocessed L3 Sea Surface Winds from Scatterometer EU Copernicus Marine Service Product https://doi.org/10.48670/moi-00183

High-resolution L3 Sea Surface Wind from MY Satellite Measurements over the Baltic Sea EU Copernicus Marine Service Product https://doi.org/10.48670/mds-00340

European Seas Gridded L 4 Sea Surface Heights And Derived Variables Reprocessed 1993 Ongoing EU Copernicus Marine Service Product https://doi.org/10.48670/moi-00141

European Seas Along Track L 3 Sea Surface Heights Reprocessed 1993 Ongoing Tailored For Data Assimilation EU Copernicus Marine Service Product https://doi.org/10.48670/moi-00139

Global Ocean L3 Significant Wave Height From Reprocessed Satellite Measurements EU Copernicus Marine Service Product https://doi.org/10.48670/moi-00176

Baltic Sea Wave Hindcast EU Copernicus Marine Service Product https://doi.org/10.48670/moi-00014

Complete ERA5 global atmospheric reanalysis Copernicus Climate Change Service https://doi.org/10.24381/cds.143582cf

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Short summary

This study estimates extreme metocean conditions for the planned Floating Storage and Regasification Unit (FSRU) terminal on the Estonian coast of the Gulf of Finland. Observations, satellite products, reanalyses, and site-specific model data are used to derive 50-year return levels for wind, sea level, waves, and currents. The results support site-specific engineering assessments and place local extremes within the wider Baltic Sea context.