Coral reef halos, also known as grazing halos or sand halos, are bands of bare, sandy seafloor that surround coral patch reefs. These features, clearly-visible from satellite imagery, may provide a window into reef health around the world, according to a recently published study by researchers at the University of Hawai’i at Mānoa School of Ocean and Earth Science and Technology (SOEST).
Click here for original story, Reef halos may enable coral telehealth checkups worldwide
Source: Phys.org