National Water Information System (NWIS)
Dataset Summary
| Agency: | Department of the Interior |
| Sub-Agency: | US Geological Survey |
| Category: | Geography and Environment |
| Date Released: | 7/1/2001 |
| Date Updated: | Data is continuously updated - contains near real-time data |
| Time Period: | 1861 to present day |
| Frequency: | varies - from one-time collection to every 15 minutes depending on purpose and collection site |
| Description: | NWIS supports the acquisition, processing, storage and dissemination of information about water quantity and quality collected at over 1.5 million sites around the U.S. As a long-term database and information delivery system, NWIS provides continual access to data collected over the last 100+ years, as well as real-time data on streamflow, etc. |
Dataset Information
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Data.gov Data Category Type
|
Raw Data Catalog
|
| Specialized Data Category Designation | Surveillance |
| Keywords | water resources, water data, ground water, groundwater, surface water, water quality, water chemistry, real-time water data, streamflow, water level, NWIS |
| Unique ID | 96 |
Contributing Agency Information
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Citation
|
National Water Information System Web, http://waterdata.usgs.gov/nwis/
|
| Agency Program Page | Water Resources http://water.usgs.gov/ |
| Agency Data Series Page | http://water.usgs.gov/data/ |
Dataset Coverage
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Unit of Analysis
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measurements, observations and analyses from ground- and surface-water bodies
|
| Granularity | coordinate: latitude, longitude and depth below land surface in some cases like ground water or lakes. |
| Geographic Coverage | United States and Territories |
Data Description
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Collection Mode
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multiple
|
| Data Collection Instrument | multiple (http://pubs.usgs.gov/twri/) |
| Data Dictionary/Variable List | http://waterdata.usgs.gov/nwis/help |
Additional Dataset Documentation
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Technical Documentation
|
|
| Additional Metadata | http://wdr.water.usgs.gov/current/documentation.html and http://water.usgs.gov/a-z/ |
OMB Control No. 3090-0284
