Modeling the Last Interglacial notch formation in Orosei, Sardinia: A Monte Carlo approach

 Scientists typically determine past sea level through studying (i.e. elevation measurement, age determination) fossilized marine organisms and sediment deposits which were formed near the sea level. However, these indicators only offer fragmented information about sea level in time and not a continuous sea level record. As a result, scientists often consider them as markers of the highest sea level reached in the past. To overcome this, we propose an innovative method consisting of a numerical model that reconstructs the shape of erosional indicators, such as cliff indentations (i.e., tidal notches) considering various factors that influence their shape. This allows us to create a continuous record of past sea level or fill the gaps left by limited on-site measurements. Our approach provides insight into the past sea level fluctuation and could potentially have broad applications in sea level research. </p