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Short Citation:
Center for Operational Oceanographic Products and Services, 2023: NOAA Water Levels for Coastal, Estuaries and Great Lakes regions, https://www.fisheries.noaa.gov/inport/item/64567.

Item Identification

Title: NOAA Water Levels for Coastal, Estuaries and Great Lakes regions
Short Name: Water Levels
Status: On Going
Creation Date: 1835
Abstract:

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.

Purpose:

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.

Supplemental Information:

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.

Keywords

Theme Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > LAND SURFACE > GEOMORPHIC LANDFORMS/PROCESSES > COASTAL PROCESSES > FLOODING
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > OCEANS
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > OCEANS > COASTAL PROCESSES > SEA LEVEL RISE
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > OCEANS > COASTAL PROCESSES > SEA SURFACE HEIGHT
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > OCEANS > COASTAL PROCESSES > TIDAL HEIGHT
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > OCEANS > MARINE ENVIRONMENT MONITORING
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > SEA SURFACE TEMPERATURE
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > OCEANS > TIDES
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > OCEANS > TIDES > TIDAL HEIGHT
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > OCEANS > TIDES > TIDAL RANGE
Global Change Master Directory (GCMD) Service Keywords
EARTH SCIENCE SERVICES > DATA ANALYSIS AND VISUALIZATION > GEOGRAPHIC INFORMATION SYSTEMS > WEB-BASED GEOGRAPHIC INFORMATION SYSTEMS
Global Change Master Directory (GCMD) Service Keywords
EARTH SCIENCE SERVICES > ENVIRONMENTAL ADVISORIES > MARINE ADVISORIES
Global Change Master Directory (GCMD) Service Keywords
EARTH SCIENCE SERVICES > ENVIRONMENTAL ADVISORIES > MARINE ADVISORIES > MARINE WEATHER/FORECAST
Global Change Master Directory (GCMD) Service Keywords
EARTH SCIENCE SERVICES > ENVIRONMENTAL ADVISORIES > MARINE ADVISORIES > TIDES
ISO 19115 Topic Category
climatologyMeteorologyAtmosphere
ISO 19115 Topic Category
geoscientificInformation
ISO 19115 Topic Category
oceans
ISO 19115 Topic Category
transportation
UNCONTROLLED
None coastal monitoring
None Coastal Sea Level Stations
None great lakes water level
None NWLON > National Water Level Observation Network
None NWLON station
None NWLP > National Water Level Program
None PORTS > Physical Oceanographic Real-Time System
None tides and currents
None water level predictions

Spatial Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Location Keywords
CONTINENT
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > ALABAMA
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > ALASKA
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > CALIFORNIA
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > CONNECTICUT
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > DELAWARE
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > DISTRICT OF COLUMBIA
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > FLORIDA
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > GEORGIA
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > GREAT LAKES
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > HAWAII
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > ILLINOIS
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > LOUISIANA
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MAINE
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MARYLAND
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MASSACHUSETTS
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MICHIGAN
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MINNESOTA
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MISSISSIPPI
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > NEW HAMPSHIRE
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > NEW JERSEY
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > NEW YORK
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > NORTH CAROLINA
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > OHIO
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > OREGON
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > PENNSYLVANIA
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > RHODE ISLAND
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > SOUTH CAROLINA
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > TEXAS
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > VIRGINIA
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > WASHINGTON
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > WISCONSIN
Global Change Master Directory (GCMD) Location Keywords
OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > BERMUDA
Global Change Master Directory (GCMD) Location Keywords
OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > CARIBBEAN SEA
Global Change Master Directory (GCMD) Location Keywords
OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > CARIBBEAN SEA > PUERTO RICO
Global Change Master Directory (GCMD) Location Keywords
OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > CARIBBEAN SEA > VIRGIN ISLANDS
Global Change Master Directory (GCMD) Location Keywords
OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF MEXICO
Global Change Master Directory (GCMD) Location Keywords
OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > AMERICAN SAMOA
Global Change Master Directory (GCMD) Location Keywords
OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > HAWAIIAN ISLANDS
Global Change Master Directory (GCMD) Location Keywords
OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > JOHNSTON ATOLL
Global Change Master Directory (GCMD) Location Keywords
OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > KIRIBATI
Global Change Master Directory (GCMD) Location Keywords
OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > MIDWAY ATOLL
Global Change Master Directory (GCMD) Location Keywords
OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > WAKE ISLAND
Global Change Master Directory (GCMD) Location Keywords
OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN > GULF OF ALASKA
Global Change Master Directory (GCMD) Location Keywords
OCEAN > PACIFIC OCEAN > SOUTH PACIFIC OCEAN > POLYNESIA > COOK ISLANDS
Global Change Master Directory (GCMD) Location Keywords
OCEAN > PACIFIC OCEAN > SOUTH PACIFIC OCEAN > POLYNESIA > FIJI
Global Change Master Directory (GCMD) Location Keywords
OCEAN > PACIFIC OCEAN > SOUTH PACIFIC OCEAN > POLYNESIA > FRENCH POLYNESIA
Global Change Master Directory (GCMD) Location Keywords
OCEAN > PACIFIC OCEAN > SOUTH PACIFIC OCEAN > POLYNESIA > SAMOA
Global Change Master Directory (GCMD) Location Keywords
OCEAN > PACIFIC OCEAN > WESTERN PACIFIC OCEAN > MICRONESIA > GUAM
Global Change Master Directory (GCMD) Location Keywords
OCEAN > PACIFIC OCEAN > WESTERN PACIFIC OCEAN > MICRONESIA > MARSHALL ISLANDS
UNCONTROLLED
None Coastal U.S. territories
None Coastal United States
None U.S. Exclusive Economic Zone

Instrument Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Instrument Keywords
ACOUSTIC SOUNDERS
Global Change Master Directory (GCMD) Instrument Keywords
PRESSURE SENSORS > PRESSURE SENSORS
Global Change Master Directory (GCMD) Instrument Keywords
TIDE GAUGES > TIDE GAUGES
Global Change Master Directory (GCMD) Instrument Keywords
WATER LEVEL GAUGES > WATER LEVEL GAUGES
UNCONTROLLED
None Microwave Water Level (MWWL) Sensor

Platform Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Platform Keywords
GOES > NOAA Geostationary Operational Environmental Satellites

Physical Location

Organization: Center for Operational Oceanographic Products and Services
City: Silver Spring
State/Province: MD

Data Set Information

Data Set Scope Code: Data Set
Maintenance Frequency: Every Other Year
Entity Attribute Overview:

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.

Entity Attribute Detail Citation:

Latest detailed information on sensors and accuracy can be found at: https://tidesandcurrents.noaa.gov/publications/CO-OPS_Measurement_Spec.pdf

Entity Attribute Detail URL: https://tidesandcurrents.noaa.gov/publications/CO-OPS_Measurement_Spec.pdf
Distribution Liability:

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.

Support Roles

Data Steward

CC ID: 1063763
Date Effective From: 2012-01-01
Date Effective To:
Contact (Position): Stakeholder Services Branch
Email Address: tide.predictions@noaa.gov
Phone: 301-713-2815

Distributor

CC ID: 1063764
Date Effective From: 2012-01-01
Date Effective To:
Contact (Organization): Center for Operational Oceanographic Products and Services (CO-OPS)
URL: Tides and Currents

Metadata Contact

CC ID: 1063765
Date Effective From: 2012-01-01
Date Effective To:
Contact (Position): Stakeholder Services Branch
Email Address: tide.predictions@noaa.gov
Phone: 301-713-2815

Point of Contact

CC ID: 1063766
Date Effective From: 2012-01-01
Date Effective To:
Contact (Position): Stakeholder Services Branch
Email Address: tide.predictions@noaa.gov
Phone: 301-713-2815

Extents

Currentness Reference: Ground Condition

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 1063686
W° Bound: -180
E° Bound: 180
N° Bound: 71.4
S° Bound: -54.8

Extent Group 1 / Time Frame 1

CC ID: 1063767
Time Frame Type: Continuing
Start: 1835

Access Information

Security Class: Unclassified
Data Access Constraints:

None

Data Use Constraints:

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.

Distribution Information

Distribution 1

CC ID: 1079824
Download URL: https://api.tidesandcurrents.noaa.gov/dpapi/prod/
Distributor: Center for Operational Oceanographic Products and Services (CO-OPS) (2012-01-01 - Present)
Description:

This is the CO-OPS Derived Product API, used for single water level station retrieval of Top-10 Water Levels, Extreme Water Levels, Sea Level Trends, and High Tide Flooding statistics. High Tide Flooding returns daily, monthly, seasonal or annual flood counts. High tide thresholds are based on methodology algorithms, and are updated annually; users should check periodically that they have the most recent values. Sample requests for all products on the Derived Product API are included on the page.

File Type: Multiple formats

Distribution 2

CC ID: 1063817
Download URL: https://tidesandcurrents.noaa.gov/ports_info.html
Distributor: Center for Operational Oceanographic Products and Services (CO-OPS) (2012-01-01 - Present)
Description:

This is CO-OPS’ Physical Oceanographic Real-Time System, or PORTS © Program

File Type: Multiple formats

Distribution 3

CC ID: 1063815
Download URL: https://tidesandcurrents.noaa.gov/sea_level_info.html
Distributor: Center for Operational Oceanographic Products and Services (CO-OPS) (2012-01-01 - Present)
Description:

Landing page for Sea Level and Coastal Flooding Information.

File Type: Multiple formats

Distribution 4

CC ID: 1063811
Download URL: https://tidesandcurrents.noaa.gov/water_level_info.html
Distributor: Center for Operational Oceanographic Products and Services (CO-OPS) (2012-01-01 - Present)
Description:

Landing page for water level observations and products. Downloadable data, tide predictions (for non-Great Lakes stations), Datums, various reports

File Type: Multiple formats

Distribution 5

CC ID: 1063812
Download URL: https://tidesandcurrents.noaa.gov/web_services_info.html
Distributor: Center for Operational Oceanographic Products and Services (CO-OPS) (2012-01-01 - Present)
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.

File Type: Multiple formats

URLs

URL 1

CC ID: 1063818
URL: https://tidesandcurrents.noaa.gov
Name: Home page for NOAA Tides and Currents
URL Type:
Online Resource
Description:

CO-OPS Main page

Data Quality

Completeness Report:

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.

Conceptual Consistency:

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.

Lineage

Lineage Statement:

Data are recorded and transmitted; then go through a quality control procedure and are loaded into a database.

Sources

Water level data source

CC ID: 1063975
Source Contribution:

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.

Catalog Details

Catalog Item ID: 64567
GUID: gov.noaa.nmfs.inport:64567
Metadata Record Created By: Shawn Maddock
Metadata Record Created: 2021-04-26 18:28+0000
Metadata Record Last Modified By: Shawn Maddock
Metadata Record Last Modified: 2023-05-09 20:19+0000
Metadata Record Published: 2021-12-01
Owner Org: CO-OPS
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Last Review Date: 2021-12-01
Metadata Review Frequency: 1 Year
Metadata Next Review Date: 2022-12-01