Developing Tactile Resources from Archaeo-Geophysical Data to Benefit Engagement with Heritage Data

The advantages of geophysical imaging are widely appreciated by the archaeological community. Geophysics allows for the non-invasive detection and characterisation of archaeological targets, and also serves as a means of conveying the archaeological significance of a site to an interested audience. Survey data can make effective contributions to heritage management, whether they are used to plan excavations, restrict public access over sensitive sites, or presented as part of exhibitions. However, unlike excavated artefacts, which may be sufficiently robust to be handled, the presentation of geophysical data is entirely visual and thus risks excluding exhibition visitors — specifically those with a visual impairment and/or neurodiverse condition. Museum services are increasingly invested in improving EDI (Equity, Diversity, Inclusivity) practice, but the appreciation of geophysical data risks being overlooked. In this abstract, we review the geophysical, technical and functional considerations in converting ground-penetrating radar (GPR) timeslices into tactile surfaces, drawing on experience from neuroscience and design fields. The data we consider originate from a multi-platform archaeological survey over industrial foundations. We highlight the value of our tactile resources for widening participation in heritage communication, but also for any sector where public understanding of geoscience data is of critical importance.