Coral reef structure is a fundamental concept in marine ecology and geomorphology, referring to the complex three-dimensional physical architecture of coral reef ecosystems. It encompasses the spatial arrangement, composition, and heterogeneity of the biogenic framework constructed by corals and other calcifying organisms, alongside associated geological substrata and biological components, and is investigated for its critical role in shaping habitat complexity, supporting biodiversity, influencing hydrodynamic regimes, and providing coastal protection.