Articles | Volume 8, issue 1
Earth Surf. Dynam., 8, 1–15, 2020
https://doi.org/10.5194/esurf-8-1-2020
Earth Surf. Dynam., 8, 1–15, 2020
https://doi.org/10.5194/esurf-8-1-2020

Research article 03 Jan 2020

Research article | 03 Jan 2020

Potential links between Baltic Sea submarine terraces and groundwater seeping

Martin Jakobsson et al.

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AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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AR: Author's response | RR: Referee report | ED: Editor decision
AR by Martin Jakobsson on behalf of the Authors (11 Nov 2019)  Author's response    Manuscript
ED: Publish subject to minor revisions (review by editor) (20 Nov 2019) by Susan Conway
AR by Martin Jakobsson on behalf of the Authors (20 Nov 2019)  Author's response    Manuscript
ED: Publish as is (22 Nov 2019) by Susan Conway
ED: Publish as is (26 Nov 2019) by Niels Hovius(Editor)
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Short summary
We studied coastal sea floor terraces in parts of the Baltic Sea using various types of sonar data, sediment cores, and video. Terraces (~1 m high, > 100 m long) are widespread in depths < 15 m and are formed in glacial clay. Our study supports an origin from groundwater flow through silty layers, undermining overlying layers when discharged at the sea floor. Submarine groundwater discharge like this may be a significant source of freshwater to the Baltic Sea that needs to be studied further.