Mid-Holocene to present circum-Arabian sea level database: Investigating future coastal ocean inundation risk along the Arabian plate shorelines

The Arabian Peninsula has a unique setting to resolve how proximity tectonically diverse plate margins, eustacy, and glacial isostatic adjustment (GIA) influences coastal sea level fluctuations. New 14 C AMS U series dating of sediments from the western, southern, eastern margins (Al-Wajh Thuwal, Saudi Arabia; Bar Al-Hikman, Oman; Abu Dhabi, U.A.E) have been integrated with an archive dated (n = 145, 31 locations). Each sample is recalibrated for its elevation based on high-resolution DEM dataset, tidal tectonic correction, reservoir develop new-suite relative (RSL) plots, separated into six distinct zones. A mid-Holocene highstand identified in most zones (1, 2, 4, 6), however, complex spatial temporal variability. No data available zone 3, whereas no Holocene was observed 5. results suggest that varying rates vertical change (max 1 mm/year) 0.5 were major drivers fluctuations since Mid-Holocene albeit different proportions along sections shorelines. Furthermore, topography shoreline, range, presence/absence barrier also significantly inundation. Based our findings, Arabia will near future experience largest flooding (largest 0–10 m area, > 2 amplitude, barriers), followed by western (1–2 discontinuous coral reef barriers) southern shorelines (>3 presented insights are critical supporting communities coasts Peninsula, who cope rising oceans over next few decades due climate change. • First extensive circum-Arabian indicators database (n=145). Relatively contemporaneous transgression across (except some parts Oman). High variability Peninsula. Eastern shoreline vulnerable (amongst all segments) rise.