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.
Ground-water data for the Nation [ More info] 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.
Human Health Database [ More info] Central site providing links to USGS databases and homepages providing significant data and information on research related to human health.
Hydro-Climatic Data Network (HCDN): streamflow data set, 1874 - 1988 [ More info] 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.
Instantaneous Data Archive - IDA [ More info] 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.
Landsat Data Continuity Mission [ More info] 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.
List of spatial data sets for water [ More info] 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.
Long Term Resource Monitoring Program (Upper Mississippi River area): sampling data [ More info] Downloadable data and other information about the sampling programs used in long-term monitoring of the upper Mississippi River area.
Mars Global Digital Dune Database; MC-1 [ More info] Distribution and morphological character of moderate to large size dune fields on Mars from 65 degrees North to the north pole.
Massachusetts and Rhode Island District water data [ More info] 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.
Mineral Resources Data System (MRDS) [ More info] MRDS is a worldwide database of metallic and industrial mineral sites. Links to portions of the database that are available online.
Alphabetical Index of Topics
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