Digital information in a format suitable for direct input to software that can analyze its meaning in the scientific, engineering, or business context for which the data were collected.
National Water Information System (NWIS) real-time data on selected ground water sites, ground water level data, site inventory of wells, test holes, drains, springs and excavations and ground water-quality data for the United States.
The Hydro-Climatic Data Network, or HCDN, consists of streamflow records for 1,659 sites throughout United States and its Territories. Records span the period 1874 through 1988, and represent a total of 73,231 water years of information.
The USGS collects continuous stage, discharge, and other instantaneous time-series data on the nations rivers. This Archive provides streamflow data and historical data, often several years worth.
Main site for Landsat missions, which provide information about land surface features of the earth. Includes imagery, links to general and technical information, ordering of data, and partners.
Links and brief summaries of available geospatial datasets for producing map layers on a variety of topics related to water including data on locations of aquifers, stations, land use and others.
Links to streamflow, surface and ground water, water quality, flood, drought, and precipitation data in real-time and for historic time periods for Massachusetts and Rhode Island.
U.S. Department of the Interior |
U.S. Geological Survey