NOAA Water Levels for Coastal, Estuaries and Great Lakes regions
For over 200 years, NOAA's Center for Operational Oceanographic Products and Services (CO-OPS) and its predecessors have been managing a comprehensive system for observing, communicating, and assessing water levels nationwide, including on the Great Lakes, and in certain U.S. territories. The standard data collected from our water level stations are reported in 6-minute intervals, and support the National Water Level Observation Network (NWLON), short-term Vertical Datum (VDatum) Projects, the National Tsunami Warning System, the Physical Oceanographic Real-Time System, or PORTS Program, and other partnerships. These data are quality controlled and used to support safe and efficient maritime commerce, sound coastal management, recreation, and studies in sea level and climate changes. The secondary datasets derived from these observations are highs and lows (except for Great Lakes), hourly heights, daily means (Great Lakes only), and monthly means, from which all other CO-OPS datasets are derived for datums, tidal predictions, and sea level applications. Hourly heights in particular are utilized to calculate historic high tide flooding statistics, and to compute monthly mean sea level values, which are incorporated into tidal datums for nautical charting and harmonic constituents for generating tidal predictions. Note: both products of high tide flooding statistics and tidal predictions are calculated on the fly and are not stored, nor considered as data.
Resources
9 resources available
-
https://tidesandcurrents.noaa.gov/ports_info.html
TEXT/HTML -
https://tidesandcurrents.noaa.gov/water_level_info.html
TEXT/HTML -
https://tidesandcurrents.noaa.gov/web_services_info.html
TEXT/HTML -
https://tidesandcurrents.noaa.gov/sea_level_info.html
TEXT/HTML -
https://api.tidesandcurrents.noaa.gov/api/prod/
TEXT/HTML -
https://tidesandcurrents.noaa.gov/api-helper/url-generator.html
TEXT/HTML -
GCMD Keyword Forum Page
TEXT/HTML -
Full Metadata Record
TEXT/HTML -
Entity Attribute Detail URL
PDF
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Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | non-public |
| contactPoint |
{
"fn": "Not provided - Contact data.gov",
"hasEmail": "mailto:datagovsupport@gsa.gov"
}
|
| describedBy | https://tidesandcurrents.noaa.gov/publications/CO-OPS_Measurement_Spec.pdf |
| describedByType | application/octet-steam |
| description | For over 200 years, NOAA's Center for Operational Oceanographic Products and Services (CO-OPS) and its predecessors have been managing a comprehensive system for observing, communicating, and assessing water levels nationwide, including on the Great Lakes, and in certain U.S. territories. The standard data collected from our water level stations are reported in 6-minute intervals, and support the National Water Level Observation Network (NWLON), short-term Vertical Datum (VDatum) Projects, the National Tsunami Warning System, the Physical Oceanographic Real-Time System, or PORTS Program, and other partnerships. These data are quality controlled and used to support safe and efficient maritime commerce, sound coastal management, recreation, and studies in sea level and climate changes. The secondary datasets derived from these observations are highs and lows (except for Great Lakes), hourly heights, daily means (Great Lakes only), and monthly means, from which all other CO-OPS datasets are derived for datums, tidal predictions, and sea level applications. Hourly heights in particular are utilized to calculate historic high tide flooding statistics, and to compute monthly mean sea level values, which are incorporated into tidal datums for nautical charting and harmonic constituents for generating tidal predictions. Note: both products of high tide flooding statistics and tidal predictions are calculated on the fly and are not stored, nor considered as data. |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "https://tidesandcurrents.noaa.gov/ports_info.html",
"accessURL": "https://tidesandcurrents.noaa.gov/ports_info.html",
"mediaType": "text/html",
"description": "This is CO-OPS’ Physical Oceanographic Real-Time System, or PORTS © Program",
"describedByType": "application/octet-stream"
},
{
"@type": "dcat:Distribution",
"title": "https://tidesandcurrents.noaa.gov/water_level_info.html",
"accessURL": "https://tidesandcurrents.noaa.gov/water_level_info.html",
"mediaType": "text/html",
"description": "Landing page for water level observations and products. Downloadable data, tide predictions (for non-Great Lakes stations), Datums, various reports",
"describedByType": "application/octet-stream"
},
{
"@type": "dcat:Distribution",
"title": "https://tidesandcurrents.noaa.gov/web_services_info.html",
"accessURL": "https://tidesandcurrents.noaa.gov/web_services_info.html",
"mediaType": "text/html",
"description": "Landing page for CO-OPS’ web services (which is separate from the web site). Services include APIs, GIS Data Portal (MapServices and FeatureServices), THREDDS Server, AWS, ERDDAP, SOAP Web Services, SOS, NowCOAST and a Stations Listing. All of these provide viewable and downloadable data or various reports. Outputs can be text, CSV, JSON, XML, depending on which web service is used.",
"describedByType": "application/octet-stream"
},
{
"@type": "dcat:Distribution",
"title": "https://tidesandcurrents.noaa.gov/sea_level_info.html",
"accessURL": "https://tidesandcurrents.noaa.gov/sea_level_info.html",
"mediaType": "text/html",
"description": "Landing page for Sea Level and Coastal Flooding Information.",
"describedByType": "application/octet-stream"
},
{
"@type": "dcat:Distribution",
"title": "https://api.tidesandcurrents.noaa.gov/api/prod/",
"accessURL": "https://api.tidesandcurrents.noaa.gov/api/prod/",
"mediaType": "text/html",
"description": "This is the Data API page where users can learn about the several data products, api url parameters as well as output parameters. The associated response help page provides users with more detailed information.",
"describedByType": "application/octet-stream"
},
{
"@type": "dcat:Distribution",
"title": "https://tidesandcurrents.noaa.gov/api-helper/url-generator.html",
"accessURL": "https://tidesandcurrents.noaa.gov/api-helper/url-generator.html",
"mediaType": "text/html",
"description": "This is the landing page CO-OPS API builder, used to build API url for several of data, metadata and derived product for CO-OPS. The documentation page for each of the categories provides detailed information about the different API url parameters, product types, returned parameters, response help page, error messages and sample queries.",
"describedByType": "application/octet-stream"
},
{
"@type": "dcat:Distribution",
"title": "GCMD Keyword Forum Page",
"accessURL": "https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords",
"mediaType": "text/html",
"description": "Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords",
"describedByType": "application/octet-stream"
},
{
"@type": "dcat:Distribution",
"title": "Full Metadata Record",
"accessURL": "https://www.fisheries.noaa.gov/inport/item/64567",
"mediaType": "text/html",
"description": "View the complete metadata record on InPort for more information about this dataset.",
"describedByType": "application/octet-stream"
},
{
"@type": "dcat:Distribution",
"title": "Entity Attribute Detail URL",
"format": "PDF",
"mediaType": "application/pdf",
"description": "Entity Attribute Detail URL",
"downloadURL": "https://tidesandcurrents.noaa.gov/publications/CO-OPS_Measurement_Spec.pdf",
"describedByType": "application/octet-stream"
}
]
|
| identifier | https://data.noaa.gov/waf/NOAA/nos/coops/iso/xml/64567.xml |
| issued | 1835-01-01T00:00:00.000+00:00 |
| keyword |
[
"EARTH SCIENCE > LAND SURFACE > GEOMORPHIC LANDFORMS/PROCESSES > COASTAL PROCESSES > FLOODING",
"EARTH SCIENCE > OCEANS",
"EARTH SCIENCE > OCEANS > COASTAL PROCESSES > SEA LEVEL RISE",
"EARTH SCIENCE > OCEANS > COASTAL PROCESSES > SEA SURFACE HEIGHT",
"EARTH SCIENCE > OCEANS > COASTAL PROCESSES > TIDAL HEIGHT",
"EARTH SCIENCE > OCEANS > MARINE ENVIRONMENT MONITORING",
"EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > SEA SURFACE TEMPERATURE",
"EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE",
"EARTH SCIENCE > OCEANS > TIDES",
"EARTH SCIENCE > OCEANS > TIDES > TIDAL HEIGHT",
"EARTH SCIENCE > OCEANS > TIDES > TIDAL RANGE",
"EARTH SCIENCE SERVICES > DATA ANALYSIS AND VISUALIZATION > GEOGRAPHIC INFORMATION SYSTEMS > WEB-BASED GEOGRAPHIC INFORMATION SYSTEMS",
"EARTH SCIENCE SERVICES > ENVIRONMENTAL ADVISORIES > MARINE ADVISORIES",
"EARTH SCIENCE SERVICES > ENVIRONMENTAL ADVISORIES > MARINE ADVISORIES > MARINE WEATHER/FORECAST",
"EARTH SCIENCE SERVICES > ENVIRONMENTAL ADVISORIES > MARINE ADVISORIES > TIDES",
"CONTINENT",
"CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > ALABAMA",
"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 > GEORGIA",
"CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > GREAT LAKES",
"CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > HAWAII",
"CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > ILLINOIS",
"CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > LOUISIANA",
"CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MAINE",
"CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MARYLAND",
"CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MASSACHUSETTS",
"CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MICHIGAN",
"CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MINNESOTA",
"CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MISSISSIPPI",
"CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > NEW HAMPSHIRE",
"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 > OHIO",
"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 > TEXAS",
"CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > VIRGINIA",
"CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > WASHINGTON",
"CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > WISCONSIN",
"OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > BERMUDA",
"OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > CARIBBEAN SEA",
"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 > GULF OF AMERICA",
"OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > AMERICAN SAMOA",
"OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > HAWAIIAN ISLANDS",
"OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > JOHNSTON ATOLL",
"OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > KIRIBATI",
"OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > MIDWAY ATOLL",
"OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > WAKE ISLAND",
"OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN > GULF OF ALASKA",
"OCEAN > PACIFIC OCEAN > SOUTH PACIFIC OCEAN > POLYNESIA > COOK ISLANDS",
"OCEAN > PACIFIC OCEAN > SOUTH PACIFIC OCEAN > POLYNESIA > FIJI",
"OCEAN > PACIFIC OCEAN > SOUTH PACIFIC OCEAN > POLYNESIA > FRENCH POLYNESIA",
"OCEAN > PACIFIC OCEAN > SOUTH PACIFIC OCEAN > POLYNESIA > SAMOA",
"OCEAN > PACIFIC OCEAN > WESTERN PACIFIC OCEAN > MICRONESIA > GUAM",
"OCEAN > PACIFIC OCEAN > WESTERN PACIFIC OCEAN > MICRONESIA > MARSHALL ISLANDS",
"ACOUSTIC SOUNDERS",
"PRESSURE SENSORS > PRESSURE SENSORS",
"TIDE GAUGES > TIDE GAUGES",
"WATER LEVEL GAUGES > WATER LEVEL GAUGES",
"GOES > NOAA Geostationary Operational Environmental Satellites",
"Coastal Sea Level Stations",
"NWLON > National Water Level Observation Network",
"NWLON station",
"NWLP > National Water Level Program",
"PORTS > Physical Oceanographic Real-Time System",
"coastal monitoring",
"great lakes water level",
"tides and currents",
"water level predictions",
"Coastal U.S. territories",
"Coastal United States",
"Gulf of Mexico",
"U.S. Exclusive Economic Zone",
"Microwave Water Level (MWWL) Sensor",
"DOC/NOAA/NOS/CO-OPS > Center for Operational Oceanographic Products and Services, National Ocean Service, NOAA, U.S. Department of Commerce",
"CO-OPS Metadata Library"
]
|
| landingPage | https://www.fisheries.noaa.gov/inport/item/64567 |
| language |
[]
|
| license | https://creativecommons.org/publicdomain/zero/1.0/ |
| modified | 1835-01-01T00:00:00.000+00:00 |
| publisher |
{
"name": "Center for Operational Oceanographic Products and Services",
"@type": "org:Organization"
}
|
| rights | otherRestrictions, unclassified |
| spatial | 180.0,-54.8,-180.0,71.4 |
| temporal | 1835-01-01T00:00:00+00:00/1835-01-01T00:00:00+00:00 |
| title | NOAA Water Levels for Coastal, Estuaries and Great Lakes regions |
