"This report distinguishes between the primary data (PD) that needs to be collected in order to provide a range of derivative products (DP). Primary data include satellite imagery from sensors such as IKONOS or WorldView; bathymetric (depth) and backscatter (imagery) data from acoustic multibeam sonars and Light Ranging and Detection optical sensors (LiDAR); and ground-truth data from in situ optical sensors on tow sleds or other vehicles and diver videos and photographs. Derivative products include bathymetric products such as slope, rugosity or feature maps, and products that integrate multiple types of primary data, including hard/soft, coral cover, and benthic habitat maps. It is important to recognize that, without sufficient primary data (especially in situ optical data), it is not possible to produce accurate and complete derivative products"--P. 4.

Public Domain