https://www.usgs.gov/publications/depth-determination-colvocoresses-reef-indian-ocean-ec-68-landsat
Depth determination of Colvocoresses Reef, Indian Ocean (EC-68-Landsat) | U.S. Geological Survey
The depth to the subject reef has been estimated at a nominal 10 n by three independent analyses based on Landsat and (in two cases) comparisons.: to measured...