64567 Water Levels Data Set Published / External 37109 CO-OPS Metadata Library Library On Going 1835 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. The mission of NOAA's National Ocean Service's (NOS) Center for Operational Oceanographic Products and Services (CO-OPS) is to provide the national infrastructure, and the scientific and technical expertise to monitor, assess, and distribute tide, water level, tidal current, meteorological and other coastal oceanographic products and services necessary to support NOAA's mission. Raw data have not been subjected to the National Ocean Service's (NOS) quality control or quality assurance procedures and do not meet the criteria and standards of official NOS data. Users are cautioned to always review these data closely to ensure that they are appropriate for their intended use. Verified data have been subjected to the NOS quality control or quality assurance procedures, and meet criteria and standards. Processing and verifying CO-OPS water level data is a two-person process. Each month, an analyst reviews a station’s data (filling data gaps, removing erroneous spikes, etc.) for the previous calendar month’s data. In most cases, the raw 6-minute data points end up becoming the verified 6-minute data, minus spikes and gaps. Once the re-viewer is done, the second person confirms the work of the reviewer, and marks the data in the database as “verified.” At the moment of being marked as such, that month’s verified 6-minute data and other products (high-lows, hourly heights, daily and monthly means) become available on the CO-OPS web site and web services. Each month, the water level stations are processed/verified in random order, to prevent the same stations or geo-graphical areas from always being first or last. Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > LAND SURFACE > GEOMORPHIC LANDFORMS/PROCESSES > COASTAL PROCESSES > FLOODING Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > OCEANS Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > OCEANS > COASTAL PROCESSES > SEA LEVEL RISE Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > OCEANS > COASTAL PROCESSES > SEA SURFACE HEIGHT Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > OCEANS > COASTAL PROCESSES > TIDAL HEIGHT Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > OCEANS > MARINE ENVIRONMENT MONITORING Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > SEA SURFACE TEMPERATURE Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > OCEANS > TIDES Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > OCEANS > TIDES > TIDAL HEIGHT Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > OCEANS > TIDES > TIDAL RANGE Theme Global Change Master Directory (GCMD) Service Keywords EARTH SCIENCE SERVICES > DATA ANALYSIS AND VISUALIZATION > GEOGRAPHIC INFORMATION SYSTEMS > WEB-BASED GEOGRAPHIC INFORMATION SYSTEMS Theme Global Change Master Directory (GCMD) Service Keywords EARTH SCIENCE SERVICES > ENVIRONMENTAL ADVISORIES > MARINE ADVISORIES Theme Global Change Master Directory (GCMD) Service Keywords EARTH SCIENCE SERVICES > ENVIRONMENTAL ADVISORIES > MARINE ADVISORIES > MARINE WEATHER/FORECAST Theme Global Change Master Directory (GCMD) Service Keywords EARTH SCIENCE SERVICES > ENVIRONMENTAL ADVISORIES > MARINE ADVISORIES > TIDES Theme ISO 19115 Topic Category climatologyMeteorologyAtmosphere Theme ISO 19115 Topic Category geoscientificInformation Theme ISO 19115 Topic Category oceans Theme ISO 19115 Topic Category transportation Spatial Global Change Master Directory (GCMD) Location Keywords CONTINENT Spatial Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > ALABAMA Spatial Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > ALASKA Spatial Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > CALIFORNIA Spatial Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > CONNECTICUT Spatial Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > DELAWARE Spatial Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > DISTRICT OF COLUMBIA Spatial Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > FLORIDA Spatial Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > GEORGIA Spatial Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > GREAT LAKES Spatial Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > HAWAII Spatial Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > ILLINOIS Spatial Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > LOUISIANA Spatial Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MAINE Spatial Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MARYLAND Spatial Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MASSACHUSETTS Spatial Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MICHIGAN Spatial Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MINNESOTA Spatial Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MISSISSIPPI Spatial Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > NEW HAMPSHIRE Spatial Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > NEW JERSEY Spatial Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > NEW YORK Spatial Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > NORTH CAROLINA Spatial Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > OHIO Spatial Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > OREGON Spatial Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > PENNSYLVANIA Spatial Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > RHODE ISLAND Spatial Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > SOUTH CAROLINA Spatial Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > TEXAS Spatial Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > VIRGINIA Spatial Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > WASHINGTON Spatial Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > WISCONSIN Spatial Global Change Master Directory (GCMD) Location Keywords OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > BERMUDA Spatial Global Change Master Directory (GCMD) Location Keywords OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > CARIBBEAN SEA Spatial Global Change Master Directory (GCMD) Location Keywords OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > CARIBBEAN SEA > PUERTO RICO Spatial Global Change Master Directory (GCMD) Location Keywords OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > CARIBBEAN SEA > VIRGIN ISLANDS Spatial Global Change Master Directory (GCMD) Location Keywords OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF AMERICA Spatial Global Change Master Directory (GCMD) Location Keywords OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > AMERICAN SAMOA Spatial Global Change Master Directory (GCMD) Location Keywords OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > HAWAIIAN ISLANDS Spatial Global Change Master Directory (GCMD) Location Keywords OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > JOHNSTON ATOLL Spatial Global Change Master Directory (GCMD) Location Keywords OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > KIRIBATI Spatial Global Change Master Directory (GCMD) Location Keywords OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > MIDWAY ATOLL Spatial Global Change Master Directory (GCMD) Location Keywords OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > WAKE ISLAND Spatial Global Change Master Directory (GCMD) Location Keywords OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN > GULF OF ALASKA Spatial Global Change Master Directory (GCMD) Location Keywords OCEAN > PACIFIC OCEAN > SOUTH PACIFIC OCEAN > POLYNESIA > COOK ISLANDS Spatial Global Change Master Directory (GCMD) Location Keywords OCEAN > PACIFIC OCEAN > SOUTH PACIFIC OCEAN > POLYNESIA > FIJI Spatial Global Change Master Directory (GCMD) Location Keywords OCEAN > PACIFIC OCEAN > SOUTH PACIFIC OCEAN > POLYNESIA > FRENCH POLYNESIA Spatial Global Change Master Directory (GCMD) Location Keywords OCEAN > PACIFIC OCEAN > SOUTH PACIFIC OCEAN > POLYNESIA > SAMOA Spatial Global Change Master Directory (GCMD) Location Keywords OCEAN > PACIFIC OCEAN > WESTERN PACIFIC OCEAN > MICRONESIA > GUAM Spatial Global Change Master Directory (GCMD) Location Keywords OCEAN > PACIFIC OCEAN > WESTERN PACIFIC OCEAN > MICRONESIA > MARSHALL ISLANDS Instrument Global Change Master Directory (GCMD) Instrument Keywords ACOUSTIC SOUNDERS Instrument Global Change Master Directory (GCMD) Instrument Keywords PRESSURE SENSORS > PRESSURE SENSORS Instrument Global Change Master Directory (GCMD) Instrument Keywords TIDE GAUGES > TIDE GAUGES Instrument Global Change Master Directory (GCMD) Instrument Keywords WATER LEVEL GAUGES > WATER LEVEL GAUGES Platform Global Change Master Directory (GCMD) Platform Keywords GOES > NOAA Geostationary Operational Environmental Satellites Theme Coastal Sea Level Stations Theme NWLON > National Water Level Observation Network Theme NWLON station Theme NWLP > National Water Level Program Theme PORTS > Physical Oceanographic Real-Time System Theme coastal monitoring Theme great lakes water level Theme tides and currents Theme water level predictions Spatial Coastal U.S. territories Spatial Coastal United States Spatial Gulf of Mexico Spatial U.S. Exclusive Economic Zone Instrument Microwave Water Level (MWWL) Sensor Center for Operational Oceanographic Products and Services Silver Spring MD Data Set Every Other Year Sensors used today are one of four types: acoustic, microwave water level (MWWL), shaft angle encoder (Great Lakes), and pressure sensor (bubbler). The type of sensor used depends on the station’s environment. The lack of infrastructure may prevent the use of the desired sensor type at that location. Latest detailed information on sensors and accuracy can be found at: https://tidesandcurrents.noaa.gov/publications/CO-OPS_Measurement_Spec.pdf https://tidesandcurrents.noaa.gov/publications/CO-OPS_Measurement_Spec.pdf Raw data have not been subjected to the National Ocean Service's quality control or quality assurance procedures and do not meet the criteria and standards of official National Ocean Service data. They are released for limited public use as preliminary data to be used only with appropriate caution. Data Steward 2012-01-01 Position Stakeholder Services Branch tide.predictions@noaa.gov 301-713-2815 Distributor 2012-01-01 Organization Center for Operational Oceanographic Products and Services CO-OPS https://ror.org/05vcng590 https://tidesandcurrents.noaa.gov/ Tides and Currents Online Resource Metadata Contact 2012-01-01 Position Stakeholder Services Branch tide.predictions@noaa.gov 301-713-2815 Point of Contact 2012-01-01 Position Stakeholder Services Branch tide.predictions@noaa.gov 301-713-2815 Ground Condition -180 180 71.4 -54.8 Continuing 1835 Unclassified None Preliminary (raw) data have not been subjected to the National Ocean Service's quality control or quality assurance procedures and do not meet the criteria and standards of official National Ocean Service data. They are released for limited public use as preliminary data to be used only with appropriate caution. Historical data are only good for observations and may not reflect present day conditions. These data are only representative of the geographic location of the observation. https://api.tidesandcurrents.noaa.gov/api/prod/ 2012-01-01 Organization Center for Operational Oceanographic Products and Services https://ror.org/05vcng590 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. https://tidesandcurrents.noaa.gov/api-helper/url-generator.html 2012-01-01 Organization Center for Operational Oceanographic Products and Services https://ror.org/05vcng590 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. https://tidesandcurrents.noaa.gov/ports_info.html 2012-01-01 Organization Center for Operational Oceanographic Products and Services https://ror.org/05vcng590 This is CO-OPS’ Physical Oceanographic Real-Time System, or PORTS © Program Multiple formats https://tidesandcurrents.noaa.gov/sea_level_info.html 2012-01-01 Organization Center for Operational Oceanographic Products and Services https://ror.org/05vcng590 Landing page for Sea Level and Coastal Flooding Information. Multiple formats https://tidesandcurrents.noaa.gov/water_level_info.html 2012-01-01 Organization Center for Operational Oceanographic Products and Services https://ror.org/05vcng590 Landing page for water level observations and products. Downloadable data, tide predictions (for non-Great Lakes stations), Datums, various reports Multiple formats https://tidesandcurrents.noaa.gov/web_services_info.html 2012-01-01 Organization Center for Operational Oceanographic Products and Services https://ror.org/05vcng590 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. Multiple formats https://tidesandcurrents.noaa.gov Home page for NOAA Tides and Currents Online Resource CO-OPS Main page Raw data have not been subjected to the National Ocean Service's quality control or quality assurance procedures and do not meet the criteria and standards of official National Ocean Service data. They are released for limited public use as preliminary data to be used only with appropriate caution. Raw data have not been subjected to the National Ocean Service's quality control or quality assurance procedures and do not meet the criteria and standards of official National Ocean Service data. They are released for limited public use as preliminary data to be used only with appropriate caution. Data are recorded and transmitted; then go through a quality control procedure and are loaded into a database. Water level data source 6-minute data from various water level instruments supporting 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. gov.noaa.nmfs.inport:64567 Shawn Maddock 2021-04-26T18:28:59 SysAdmin InPortAdmin 2026-08-19T18:36:49 2021-12-01 Center for Operational Oceanographic Products and Services CO-OPS 1002 Public No No 2021-12-01 1 Year 2022-12-01