This session addresses the challenge of consistently combining terrestrial and marine datasets referenced to different vertical reference surfaces, a fundamental requirement for, among other applications, effective coastal-zone management and robust coastal-hazard assessment. This includes the integration of terrain elevations, bathymetric data, and/or sea-level data, including model-derived water levels, as well as the realization and unification of the vertical reference surfaces to which these datasets are referenced.
We welcome contributions proposing strategies for land–sea vertical reference integration across scales, from global to local, as well as studies applying and evaluating such strategies. Contributions are also invited on the realization of height and depth reference surfaces, including (marine) geoid and chart datum models, height-system unification, and the transfer of vertical datums across the land–sea interface.