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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.

Resources

11 resources available

  • Metadata Landing Page

    TEXT/HTML
    Visit Page

  • Water Level Data in Support of Tsunami Research

    HTML
    Download

  • THREDDS Data Server

    TEXT/HTML
    Visit Page

  • Map Viewer

    TEXT/HTML
    Visit Page

  • Timeline of Tide Gauge Data Inventory

    TEXT/HTML
    Visit Page

  • NCEI Customer Service

    TEXT/HTML
    Visit Page

  • National Water Level Observation Network

    TEXT/HTML
    Visit Page

  • CO-OPS 1-minute Tsunami Water Level Data

    TEXT/HTML
    Visit Page

  • CO-OPS Sensor Specifications and Measurement Algorithms

    PDF
    Download

  • Global Change Master Directory (GCMD) Keywords

    TEXT/HTML
    Visit Page

  • WMO Codelist Catalog for ISO 19139 Metadata

    XML
    Download

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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
@type dcat:Dataset
accessLevel non-public
contactPoint 
{
  "fn": "NOAA National Centers for Environmental Information",
  "@type": "vcard:Contact",
  "hasEmail": "mailto:ncei.info@noaa.gov"
}
describedByType application/octet-steam
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 
[
  {
    "@type": "dcat:Distribution",
    "title": "Metadata Landing Page",
    "accessURL": "https://doi.org/10.25921/dt9g-2p60",
    "mediaType": "text/html",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Water Level Data in Support of Tsunami Research",
    "format": "HTML",
    "mediaType": "text/html",
    "description": "Information about water level data collected in support of the NOAA Tsunami Program",
    "downloadURL": "https://www.ngdc.noaa.gov/hazard/tide.shtml",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "THREDDS Data Server",
    "accessURL": "https://www.ngdc.noaa.gov/thredds/enhancedCatalogWaterlevel.html",
    "mediaType": "text/html",
    "description": "Direct download of netCDF and CSV files; OpenDAP and NetCDF Subset Service endpoints",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Map Viewer",
    "accessURL": "https://www.ncei.noaa.gov/maps/hazards/?layers=5",
    "mediaType": "text/html",
    "description": "Tide Gauge Data Layer of NCEI Natural Hazards Map Viewer (for 1-minute water level data)",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Timeline of Tide Gauge Data Inventory",
    "accessURL": "https://www.ngdc.noaa.gov/hazard/tide/",
    "mediaType": "text/html",
    "description": "Timeline of Tide Gauge Data Inventory (including 1-minute water level data)",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "NCEI Customer Service",
    "accessURL": "https://www.ncei.noaa.gov/contact",
    "mediaType": "text/html",
    "description": "The archived preliminary 6-minute, verified 6-minute, verified hourly,
											verified highs and lows, verified daily means, and verified monthly means water level 
											datasets are not currently available for direct download from NCEI. Please contact 
											NCEI to request data from the offline archive.",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "National Water Level Observation Network",
    "accessURL": "https://tidesandcurrents.noaa.gov/nwlon.html",
    "mediaType": "text/html",
    "description": "Information about the National Water Level Observation Network, a component of the National Water Level Program",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "CO-OPS 1-minute Tsunami Water Level Data",
    "accessURL": "http://doi.org/10.7289/V59884XF",
    "mediaType": "text/html",
    "description": "Information about previously archived 1-minute Tsunami Water Level Data originating from CO-OPS",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "CO-OPS Sensor Specifications and Measurement Algorithms",
    "format": "PDF",
    "mediaType": "application/pdf",
    "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).",
    "downloadURL": "https://tidesandcurrents.noaa.gov/publications/CO-OPS_Measurement_Spec.pdf",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Global Change Master Directory (GCMD) Keywords",
    "accessURL": "https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords",
    "mediaType": "text/html",
    "description": "The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords.",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "WMO Codelist Catalog for ISO 19139 Metadata",
    "format": "XML",
    "mediaType": "application/xml",
    "description": "Codelists for description of metadata datasets compliant with the WMO Core Metadata Profile version 1.3 (derived from ISO/TC 211 19115:2003 and 19139).",
    "downloadURL": "http://wis.wmo.int/style/WMOCodeLists_Style.xml",
    "describedByType": "application/octet-stream"
  }
]
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"
}
references 
[
  "https://tidesandcurrents.noaa.gov/nwlon.html",
  "http://doi.org/10.7289/V59884XF",
  "https://tidesandcurrents.noaa.gov/publications/CO-OPS_Measurement_Spec.pdf"
]
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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