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CO-OPS Water Level Data from the Coastal Tide Gauge and Great Lake Water Level Network of the United States and US Territories

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Catalog Last Checked: August 01, 2026 at 09:07 AM | Dataset Last Updated: October 01, 2018 at 12:00 AM
The Center for Operational Oceanographic Products and Services (CO-OPS) of the National Ocean Service (NOS), an organizational element of NOAA, operates and maintains a network of approximately 200 long-term National Water Level Observation Network (NWLON) stations as part of the National Water Level Program (NWLP) for the United States coasts and in the Great Lakes. CO-OPS also installs and operates short-term water level stations in support of a variety of programs including hydrographic surveys, marine boundary determination, tidal predictions, habitat restoration, dredging, climate change, and long-term sea level rise studies. The data collected and predictions derived are used to ensure safe,efficient, and environmentally sound maritime commerce, environmental assessment, and hazard mitigation. CO-OPS provides a set of water level products required by NOAA's National Weather Service (NWS) to meet flood and tsunami warning responsibilities. Included in this water level collection are preliminary 1-minute, preliminary 6-minute, verified 6-minute, verified hourly, verified highs and lows, verified daily means, and verified monthly mean water levels.

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Earth Science > Oceans > Tides Earth Science > Oceans > Tides > Tidal Currents Earth Science > Oceans > Tides > Tidal Height Earth Science > Oceans > Tides > Tidal Range Earth Science > Oceans > Ocean Waves > Tsunamis Earth Science > Oceans > Coastal Processes > Sea Surface Height Earth Science > Oceans > Coastal Processes > Tidal Height oceanography

Complete Metadata
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description The Center for Operational Oceanographic Products and Services (CO-OPS) of the National Ocean Service (NOS), an organizational element of NOAA, operates and maintains a network of approximately 200 long-term National Water Level Observation Network (NWLON) stations as part of the National Water Level Program (NWLP) for the United States coasts and in the Great Lakes. CO-OPS also installs and operates short-term water level stations in support of a variety of programs including hydrographic surveys, marine boundary determination, tidal predictions, habitat restoration, dredging, climate change, and long-term sea level rise studies. The data collected and predictions derived are used to ensure safe,efficient, and environmentally sound maritime commerce, environmental assessment, and hazard mitigation. CO-OPS provides a set of water level products required by NOAA's National Weather Service (NWS) to meet flood and tsunami warning responsibilities. Included in this water level collection are preliminary 1-minute, preliminary 6-minute, verified 6-minute, verified hourly, verified highs and lows, verified daily means, and verified monthly mean water levels.
distribution 
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    "title": "Water Level Data in Support of Tsunami Research",
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    "description": "Information about water level data collected in support of the NOAA Tsunami Program",
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    "title": "CO-OPS 1-minute Tsunami Water Level Data",
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    "description": "Cite as: Center for Operational Oceanographic Products and Services (CO-OPS). Revised November 2018.  NOAA's Ocean Service, Center for Operational Oceanographic Products and Services (CO-OPS), 
															Environmental Measurement Systems, Sensor Specifications and Measurement Algorithms.  NOAA Center for Operational Oceanographic Products and Services (CO-OPS).",
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identifier https://data.noaa.gov/waf/NOAA/NESDIS/NGDC/Collection/iso/xml/CO-OPS_Waterlevel_Collection.xml
isPartOf National Water Level Program
issued 2018-10-01T00:00:00.000+00:00
keyword 
[
  "Earth Science > Oceans > Tides",
  "Earth Science > Oceans > Tides > Tidal Currents",
  "Earth Science > Oceans > Tides > Tidal Height",
  "Earth Science > Oceans > Tides > Tidal Range",
  "Earth Science > Oceans > Ocean Waves > Tsunamis",
  "Earth Science > Oceans > Coastal Processes > Sea Surface Height",
  "Earth Science > Oceans > Coastal Processes > Tidal Height",
  "oceanography",
  "Continent > North America > United States Of America > Alaska",
  "Continent > North America > United States Of America > California",
  "Continent > North America > United States Of America > Connecticut",
  "Continent > North America > United States Of America > Delaware",
  "Continent > North America > United States Of America > District Of Columbia",
  "Continent > North America > United States Of America > Florida",
  "Continent > North America > United States Of America > Great Lakes",
  "Continent > North America > United States Of America > Hawaii",
  "Continent > North America > United States Of America > Maine",
  "Continent > North America > United States Of America > Massachusetts",
  "Continent > North America > United States Of America > New Jersey",
  "Continent > North America > United States Of America > New York",
  "Continent > North America > United States Of America > North Carolina",
  "Continent > North America > United States Of America > Oregon",
  "Continent > North America > United States Of America > Pennsylvania",
  "Continent > North America > United States Of America > Rhode Island",
  "Continent > North America > United States Of America > South Carolina",
  "Continent > North America > United States Of America > Virginia",
  "Continent > North America > United States Of America > Washington",
  "Continent > North America > United States Of America",
  "Continent > North America",
  "Ocean > Atlantic Ocean > North Atlantic Ocean > Caribbean Sea > Puerto Rico",
  "Ocean > Atlantic Ocean > North Atlantic Ocean > Caribbean Sea > Virgin Islands",
  "Ocean > Atlantic Ocean > North Atlantic Ocean > Bermuda",
  "Ocean > Pacific Ocean > Western Pacific Ocean > Micronesia > Guam",
  "Ocean > Pacific Ocean > Central Pacific Ocean > Wake Island",
  "Ocean > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands",
  "Ocean > Pacific Ocean > Western Pacific Ocean > Micronesia > Marshall Islands",
  "Ocean > Pacific Ocean > Central Pacific Ocean > American Samoa",
  "In Situ Land-based Platforms > Ocean Platform/Ocean Stations > Coastal Stations",
  "In Situ/Laboratory Instruments > Gauges > Tide Gauges",
  "NTHMP > National Tsunami Hazard Mitigation Program",
  "DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce",
  "1 minute - < 1 hour",
  "Daily Climatology",
  "Monthly Climatology",
  "National Water Level Program",
  "U.S. Exclusive Economic Zone",
  "Coastal United States",
  "Coastal U.S. territories"
]
language 
[]
license https://creativecommons.org/publicdomain/zero/1.0/
modified 2018-10-01T00:00:00.000+00:00
publisher 
{
  "name": "NOAA National Centers for Environmental Information",
  "@type": "org:Organization"
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references 
[
  "https://tidesandcurrents.noaa.gov/nwlon.html",
  "http://doi.org/10.7289/V59884XF",
  "https://tidesandcurrents.noaa.gov/publications/CO-OPS_Measurement_Spec.pdf"
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rights otherRestrictions
spatial -63.64,-15.0,139.4,70.4
temporal 2018-03-01T00:00:00+00:00/2018-03-01T00:00:00+00:00
theme 
[
  "geospatial"
]
title CO-OPS Water Level Data from the Coastal Tide Gauge and Great Lake Water Level Network of the United States and US Territories

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