The Center for Operational Oceanographic Products and Services is a part of the National Oceanic and Atmospheric Administration that provides the science, infrastructure, and technical knowledge to evaluate, and convey tide, current, water level, and other coastal oceanographic products and services that support NOAA's mission. Several reports have been issued that describes what they do; this is one of them. | Understanding Tides by Steacy Dopp Hicks, Paperback | Indigo Chapters