The US Geological Survey (USGS) runs the National Water Information System (NWIS) which is the principal repository of land based water resources data in the country. MARACOOS serves USGS data from the coastal rivers and bays. The data are updated in near real time as USGS issues water alerts based on the data. These alerts could be warnings of potential flash floods in localized areas from thunderstorms to imminent large coastal flooding from tropical storms. Data can also be used to warn of dropping levels of groundwater or impending drought.
Typical products include: stream flow speed, tidal height, water temperature, PH, dissolved oxygen.
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