Earth Syst. Sci. Data, 13, 1633–1651, 2021 https://doi.org/10.5194/essd-13-1633-2021 © Author(s) 2021. This work is distributed under the Creative Commons Attribution 4.0 License. Last interglacial sea-level proxies in East Africa and the Western Indian Ocean Patrick Boyden1, Jennifer Weil-Accardo2, Pierre Deschamps2, Davide Oppo3, and Alessio Rovere1 1MARUM – Center for Marine Environmental Sciences, University of Bremen, Bremen, Germany 2CEREGE, Aix-Marseille Université, CNRS, IRD, Collège de France, Aix-en-Provence, France 3Sedimentary Basins Research Group, School of Geosciences, University of Louisiana at Lafayette, Lafayette, Louisiana, USA Correspondence: Patrick Boyden (
[email protected]) Received: 17 November 2020 – Discussion started: 23 November 2020 Revised: 4 March 2021 – Accepted: 12 March 2021 – Published: 20 April 2021 Abstract. In this paper, we describe a sea-level database compiled using published last interglacial, Marine Iso- topic Stage 5 (MIS 5), geological sea-level proxies within East Africa and the Western Indian Ocean (EAWIO). Encompassing vast tropical coastlines and coralline islands, this region has many occurrences of well-preserved last interglacial stratigraphies. Most notably, islands almost entirely composed of Pleistocene reefs (such as Aldabra, the Seychelles) have provided reliable paleo relative sea-level indicators and well-preserved samples for U-series chronology. Other sea-level proxies include uplifted marine terraces in the north of Somalia and Pleistocene eolian deposits notched by the MIS 5 sea level in Mozambique to tidal notches in luminescence- limited eolian deposits in Mozambique. Our database has been compiled using the World Atlas of Last Inter- glacial Shorelines (WALIS) interface and contains 58 sea-level indicators and 2 terrestrial-limiting data points.