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.
Hazards Data Distribution System (HDDS) [ More info] A single, consolidated point-of-entry and distribution system for USGS-hosted remotely sensed imagery and other geospatial datasets related to an event response, available through a map-based interface.
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.
Mapping benefits from updated ifsar data in Alaska: improved source data enables better maps [ More info] Higher resolution digital topographic maps for Alaska are derived from interferometric synthetic aperture radar combined with other remote sensing data.
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.
Alphabetical Index of Topics
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