NASA calls in divers’ coral data

Badi Samaniego conducting a coral reef survey on the Global Reef Expedition.


NASA calls in divers’ coral data

French Polynesia
Picture: KSLOF.

It’s a shocking statistic – Earth has lost more than half of its coral reefs over the past 40 years. The rest could be gone by 2099 if conservationists prove unable to reverse the decline, but they need an accurate means of mapping their progress.

The Khaled bin Sultan Living Oceans Foundation (KSLOF)’s 10-year Global Reef Expedition was, it says, one of the biggest coral surveys ever carried out, with much of the work done by scuba divers. Now their painstakingly gathered high-resolution data is set to be put to work through a new partnership.

The US-based environmental organisation says it is passing the entire dataset to NASA’s Ames Research Centre in California’s Silicon Valley to expand its coral-mapping capabilities.

The aim is to boost NASA's project to map the entire world’s coral reefs so that all future changes can be tracked over time. KSLOF’s data will be used with NASA's NeMO-Net neural network, which can classify recorded corals, and the Pleiades supercomputer that powers it.

Meanwhile NASA’s FluidCam, a new remote sensing instrument that can see under water without distortion, will allow reefs to be surveyed from drones and aircraft at the centimetre scale and in 3D .

“With this combination of tools and information, NeMO-Net’s maps will become more accurate, giving researchers and environmental managers better information about what’s happening to coral reefs and how to protect them at a time when they are experiencing unprecedented anthropogenic pressures,” says KSLOF.

The Global Reef Expedition involved hundreds of scientists spending tens of thousands of hours under water surveying coral reefs in the Atlantic, Pacific and Indian Ocean/Red Sea. Detailed maps of about a fifth of the world’s coral-reef habitats were the result.

“This is a game-changer,” says KSLOF’s chief scientist Sam Purkis. “NASA’s new imaging technologies and supercomputers dramatically change the landscape of what is possible in terms of mapping coral reefs.”

14 June 2021

NASA has also been acquiring data through the tens of thousands of citizen-scientists around the world who play the interactive NeMO-Net video game. Players identify and classify corals from 3D imagery of the reefs, using a free downloadable app.

“At the moment, the only way to see how reefs are changing over time is through scuba-divers, which is expensive, time-consuming and can be dangerous and subject to bias,” says Purkis.

“With this data in NASA’s hands, now suddenly you don’t have to go into the field – you can map coral reefs from space. What an uplift to conservation that becomes!”



Get a weekly roundup of all Divernet news and articles 🤿

We don’t spam! Read our privacy policy for more info.

Leave a Reply

Your email address will not be published.

Related Divernet Posts

Diver Magazine Relaunch

Diver magazine needs YOU!

Are you still lamenting the demise of Diver magazine? Well now you can help resurrect an icon as we seek to bring back the magazine

Turtles of Raja Ampat

Turtles of Raja Ampat

The Raja Ampat Creature Feature Series: Turtles Raja Ampat is the perfect diving location to find four of the seven ocean turtle species of the

manta ray and diver over reef in Komodo

Divers pitch into Komodo manta probe

Manta rays choose to stick around Indonesia’s Komodo National Park in unusually large numbers – and, according to a new diver-led study, this community could

female diver holding pair of Fourth Element Tech fins

Tech fins inspired by humpback whales

Whales provided the inspiration for optimising efficiency in Fourth Element’s latest fins, according to the Cornwall-based manufacturer. The “turbulence disruptors” on top of the blades

Last Breath portrait of Woody Harrelson

Woody dives into Last Breath remake

A new version of the British documentary-thriller that captured the imaginations of divers in 2019 is about to be previewed at the Cannes Film Festival.

Follow Divernet on Social Media