How do you understand global change of a system that’s underwater and impossible to photograph from above? Build a giant submersible camera system controlled by expert dive photographers, of course.
The world’s reef systems are deteriorating. Corals are going away at a rate of about 1 - 2 percent every year. Some areas are harder hit than others. In the last 27 years, the Great Barrier Reef has lost 53 percent of its corals and the Caribbean has lost 80 percent. That’s a big deal because reef systems are basically cities for fish. One quarter of all the ocean’s life makes their home there. If the ocean’s corals disappear then much of the life in the ocean disappears too. For humans, that means we can no longer depend on reef systems for food, protection from weather, tourism, and medicine.
So, we know reefs are important. And we know they’re deteriorating. What we don’t have is a visual understanding of how these reef systems are changing and any capability to compare changes to themselves or each other over time. To change that, professional underwater photographers have gotten together with ocean scientists to create the Global Reef Record -- a world-wide Google Maps-like photographic index of all of the coral systems in the entire world.
“We’re creating a global baseline,” says Richard Vevers, executive director of the survey. “We’ve been travelling around the world using a standard protocol for collection imagery, which allows us to do a global comparison.”
In order to accurately capture every reef on earth with consistency and 360-degree panoramic views, Vevers, who has a background in professional underwater photography, had to engineer and build a special camera. “Initially it came from an understanding of underwater photography, which is very different. We looked at taking the Google Streetview camera underwater, but we needed much wider angle lenses and we needed to be able to take shots in low visibility and low light. We also needed change exposure as we were moving without having to access the camera.”
The solution was to build the camera completely from scratch and then mount it on an underwater scooter. The entire $50,000 system is manipulated by a waterproofed tablet, with specially designed apps, that can be controlled by divers who move a magnetic mouse that operates a button inside the tablet’s glass box.