| ACWI | Advisory Committee on Water Information |
| DBMD | Database Management System |
| EROS | Earth Resources Observation System |
| NHD | National Hydrography Dataset |
| NID | National Inventory of Dams |
| PDF | Portable Document Format |
| RCAIII | Third Resource Conservation Act |
| RESIS | Reservoir Sedimentation Information System (prelude to RESIS-II) |
| RESIS-II | Reservoir Sedimentation Information System-II, an update of RESIS |
| RESSED | REServoir SEDimentation Database, a dynamic expansion of RESIS-II |
| RSED | Reservoir Sedimentation database (prelude to RESIS) |
| SCS | Soil Conservation Service |
| SOS | Subcommittee on Sedimentation |
| SPARROW | SPAtially Referenced Regressons on Watershed characteristics |
| U.S. | United States |
| USDA-NRCS | U.S. Department of Agriculture, National Resources Conservation Service |
| USDI-USGS | U.S. Department of the Interior, U.S. Geological Survey |
