U.S. Interagency Advisory Committee on Water Data- Subcommittee on Sedimentation 1980 This report is a digest of information furnished by Federal agencies conducting sedimentation investigations on work in progress or planned, important findings, new methods, new publications, laboratory and other research activities, and other pertinent information. The material has been organized by major drainage regions in the conterminous United States,Alaska, Hawaii, Puerto Rico, and foreign. There is also a section on Research and Other Activities. application/pdf en U.S. Geological Survey, Office of Water Data Coordination Notes on sedimentation activities calendar year 1978 reports