Courses Learn more structure from motion Create your own 3D computer model from overlapping photographs. Type Image processing. Difficulty Easy. Learn more tidal theory Learn how the tides work and why they’re important for ocean circulation. Type Educational video. Difficulty Easy. Learn more Saltmarsh app Complete your own survey of a salt marsh using the Saltmarsh App. Type Practical fieldwork. Difficulty Medium. Learn more introduction to R Gain confidence in using R with these series of tutorials. Type Coding. Difficulty Easy.