Abstract
This work presents a data-centric approach to the implementation of tabletop projection mapping, utilising the technology for data visualisation purposes with a focus on real-time geospatial data. The goal of the implementation is for multiple users or viewers to acquire a four-dimensional augmented overview of critical operations without the need for additional hardware. To that end, the Projection Mapping Situational Layer (PMSL) is presented as a tabletop projection mapping application where the real-time positions of sea vessels in the Vesterålen district (of Norway) are visualised. Based on this implementation and on its described characteristics, PMSL can be used to facilitate situational and real-time location awareness.