As a team of marine biologists, assessing the health of thousands of square metres of coral reef can be a daunting prospect. Often, we have to monitor some of the most biodiverse ecosystems on the planet, and there’s a strict time limit due to the safety regulations associated with Scuba diving.
Accurately measuring and classifying even small areas of reefs can involve spending many hours underwater. And with millions of reefs around the world that need monitoring in the face of looming threats to their existence, speed is critical.
But now, a digital revolution for coral reef monitoring could be underway, enabled by recent advances in low-cost camera and computing technology. Our new study shows how creating 3D computer models of entire reefs – sometimes known as digital twins – can help us monitor these precious ecosystems faster, more accurately and in greater detail than ever before.