Hydrologic Imaging: Blue Matter and the Limits of Representation

Wednesday, February 18, 2026: 12:00 AM
Private Dining Room 2 (Hybrid) (Hilton Chicago)
Christoph Rodrigo de la Torre , University of California San Diego
This paper argues that nineteenth-century experiments in aquatic photography reveal how “blue matter” resisted assimilation into Western optical norms and in doing so redefined both the practices and epistemologies of imaging. William Thompson’s first submerged photographs in 1856 and Louis Boutan’s underwater cameras at the Banyuls-sur-Mer marine station in the 1890s exemplify a paradox: while their devices were engineered to keep water out, their most striking images emerged from the ocean’s refraction, opacity, and darkness. These distortions register the ocean’s agency in shaping visual form, making water not backdrop but constitutive force.

Placed in dialogue with Indigenous hydrologic media such as Marshallese stick charts—linear-sculptural maps that materialize Pacific wave patterns into navigational technology—the Western experiments appear as one node in a wider repertoire of oceanic inscription. Juxtaposing stick charts with twentieth-century oceanographic charts of the Pacific, produced at institutions like the Scripps Institution of Oceanography, highlights how the same ocean was rendered through radically different representational logics: one translating swell into embodied, sculptural form, the other flattening water into quantified scientific surface.

By following this genealogy into the present, I show how contemporary artists continue to enlist water as active co-producer of images. Recent projects reintroduce liquids from the very environments depicted or deploy elemental forces to bend perception, reinscribing the presence of the hydrosphere into photographic and sculptural practice. Taken together, these cases demonstrate that the ocean is not an inert stage but an agentive medium, one that continually remakes the boundaries of visual art and material culture.